Pwm pin

Description: Using single chip embedded technology; Peak 4.5v to 10V level, jumper inserted at 5V. This level of signal mainly for conventional industrial control card (such as MACH3 board Card) 5V CPU interface; Easy to operate, can be fine-tuned by potentiometer; Select the PWM signal input level range through short cap; Module is small, easy to carry and use; Module operating voltage: DC12V-30V (power requirements: greater than 100mA); PWM signal reception frequency range: 1KHz-3KHz; Peak 12 to 24V level, jumper inserted in the 24V. This level of signal is mainly aimed at the conventional PLC interface; Conversion range: 0% -100% PWM to 0-10v voltage; Allowable error: 5%; Pin Definition: VCC: working power 12-30V GND: ground PWM: input PWM signal positive GND: input voltage ground VOUT: Output voltage: 0-10V GND: output ground Package included: 1 x PWM To Voltage Conversion Module 0-100% PWM To 0-10V Voltage

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Features: This board/chip uses I2C 7-bit address between 0x60-0x80, selectable with jumpers Terminal block for power input (or you can use the 0.1" breakouts on the side) Reverse polarity protection on the terminal block input Green power-good LED 3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are slightly wider than 0.1" so you can only stack 4 next to each other on 0.1" header "Chain-able" design A spot to place a big capacitor on the V+ line (in case you need it) 220 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial Solder jumpers for the 6 address select pins i2c-controlled PWM driver with a built in clock. Unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running! It is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4+ forward voltages) 6 address select pins so you can wire up to 62 of these on a single i2c bus, a total of 992 outputs - that's a lot of servos or LEDs Adjustable frequency PWM up to about 1.6 KHz 12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate Configurable push-pull or open-drain output Output enable pin to quickly disable all the outputs Package included: 1 x PCA9685 16-Channel 12-bit PWM Servo Motor Driver I2C Module For Arduino Robot PCA9685 16-Channel 12-bit PWM Servo Motor Driver I2C Module For Arduino Robot PCA9685 16-Channel 12-bit PWM Servo Motor Driver I2C Module For Arduino Robot PCA9685 16-Channel 12-bit PWM Servo Motor Driver I2C Module For Arduino Robot

Feature: - 1MHz Fast-mode Plus compatible owned 30mA high drive capability on SDA of I2C bus interface to drive highly capacitive bus - Each LED output can be achieved from the fully closed (default) to 4096 (12) between the maximum brightness linear programmable brightness - Software programmable open-drain LED output selection (default is push-pull) of 16 push-pull outputs (5V at 25mA sink can absorb and provide 10mA Source Current), no input function - Programmable output state is in response to an order to change or stop in order to achieve all outputs simultaneously update or byte by byte (byte-by-byte) update output (default "Stop command changes") - Active-low output enable input pin when the pin is high LED outputs can be programmed 0,1 or tri-state (high impedance power-on default) - 6 hardware address pins so that the same I2C devices can be connected to the bus 62 PCA9685 - LED output frequency (all LED) is typically 40Hz to 1000Hz (When the oscillator is 25MHz, the prescaler register default value 1EH will generate refresh rate of 200Hz) - 4 software-programmable I2C bus address (a LED group call (Call) addresses and three LED sub call (Call) address) so that the device can be set in any combination to be addressed at the same time (for example, a register for " all calls (All Call) "then all PCA9634 devices on the I2C bus can be addressed at the same time, while the second register for three different addresses, then the device group on a bus device can 1/3 at the same time be addressed), software can enable and disable I2C bus address - Software reset feature (SWRST Call) makes the device via the I2C bus reset - 25MHz internal oscillator requires no external components - The maximum allowable 50MHz external clock input - An internal power-on reset - In the SDA / SCL inputs with noise filter - Output pin has edge generation rate control - No glitches on power output - Hot-Access - Low Standby Current - Operating voltage range: 2.3V to 5.5V - 5.5V tolerant inputs - It can operate at minus 40 degrees Celsius to 85 degrees Celsius environment - ESD protection exceeds 2000V HBM / JESD22-A114,200V MM / JESD22-A115 and 1000V CDM / JESD22-C101 - JEDEC standard JESD78 into the lock test beyond 100mA Package included: 3 x PCA9685 16 Channel PWM Servo Control Module 3 x Terminal 18 x Pin

Description: Multi-functional transistor tester for automatic detection of NPN and PNP transistors, N channel, P channel, MOSFET and JFET, diodes, dual diode, thyristor, automatic identification of the transistor pinout. It also can be used for frequency measurement and PWM signal generator. Features: 1. The processor uses high performance single chip ATmega328 and using external 8MHz oscillator as the system clock. 2. 1.8 Inch LCD screen, resolution is 128X160, Support 65536 colors. 3. Single button operation, support for automatic shutdown to reduce power consumption. 4. Power supply support battery, the current is less than 20nA when the system is turned off. 5. Measurement time of about 2S each time. Measuring time becomes longer when measuring capacitance or inductance. 6. Detection of NPN or PNP Bipolar Transistor automatic, N channel, P channel MOSFET and JFET, diode, Double diode, P-IGPT, Thyristor, Double thyristor etc. For some thyristor and double thyristor. Unable to test When the transistor tester can not meet the requirements of its trigger current and keep the current. Transistor testers are also unable to test the IGPT drive voltages is over than 5V. 7. Support identification pin for test element. 8. Support test current amplification factor for bipolar transistor and base emitter turn-on voltage. 9. Can judge Darlington transistor through the turn-on voltage and the current amplification factor. 10. Support test the gate threshold voltage of MOSFET, grid capacitance and drain electrode in the case of 5V gate voltage- source resistance RDSon 11. Supports the simultaneous measurement of two resistors,Data is four decimal format display. Support potentiometer test, It can not distinguish between the middle pin and this pin When the potentiometer is adjusted to one end of the potentiometer. 12. Minimum resistance resolution 0.01 ohm, Maximum resistance 50M ohms. 13. Can measure a capacitor, Capacitance range 25pf~100mF, Resolution 1pF. 14. Capacitance less than 25pF can be measured by parallel connection another known capacitor is greater than or equal to 25pF. The measured capacitance value can be obtained by subtracting the known capacitance value from the result. 15. When the test capacitance is greater than 90nF, it series equivalent resistance is also be shown, resolution is 0.01 ohm. 16. When the test capacitance is greater than 5000pF. Voltage loss after the test pulse is can be measured.This parameter can estimate the quality factor of the capacitor. 17. Support two diodes to be measured simultaneously and display voltage drop for diode. 18. LED will be identified as a diode, the test voltage drop is much larger than that of the common diode. Two colors diodes are identified as two diodes. 19. Resistance less than 2100 ohm, it’s equivalent inductance is also measured at the same time. Range is 0.01mH~20H, but it’s measurement accuracy is not very good. 20. Program tape self checking function, support calibration of multiple parameters. 21. Support frequency measurement function,frequency signal input from PD4 pin. Frequency resolution is 1Hz when the input frequency is greater than 25KHz. When the value is less than that, by measuring the period, the frequency resolution can be 0.001Hz. 22. Support frequency generator function, output by TP2, the output frequency range is 1Hz ~ 2MHz. 23. Support a fixed frequency signal output from the TP2, the duty cycle can be adjusted by the button. Notice: Before measuring capacitance, the capacitor must be discharged, otherwise very likely damage the meter. Be sure to disconnect the power from the circuit board when testing the components on the circuit board, the test equipment have residual voltage is not allowed. Specifications: Type: Assembled Tester Display: 1.8inch 160*128 LCD Power supply: DC 7-12V Current: Approx. 20mA Resistance measurement: Max. 50MΩ Resistance resolution: 0.01Ω Capacitance measurement: 25pF~100mF Capacitance resolution: 1pF Inductance measurement: 0.01mH~20H PCB size: 7.5 x 6cm / 2.95 x 2.36in Product weight: 50g / 1.79oz Package size: Approx. 10 x 7 x 2cm / 3.94 x 2.75 x 0.8in Package weight: 53g / 1.9oz Package includes: 1 x Transistor Tester English User Manual: Click to open

Features: This board/chip uses I2C 7-bit address between 0x60-0x80, selectable with jumpers Terminal block for power input (or you can use the 0.1" breakouts on the side) Reverse polarity protection on the terminal block input Green power-good LED 3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are slightly wider than 0.1" so you can only stack 4 next to each other on 0.1" header "Chain-able" design A spot to place a big capacitor on the V+ line (in case you need it) 220 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial Solder jumpers for the 6 address select pins i2c-controlled PWM driver with a built in clock. Unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running! It is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4+ forward voltages) 6 address select pins so you can wire up to 62 of these on a single i2c bus, a total of 992 outputs - that's a lot of servos or LEDs Adjustable frequency PWM up to about 1.6 KHz 12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate Configurable push-pull or open-drain output Output enable pin to quickly disable all the outputs Package included: 1 x PCA9685 16-Channel 12-bit PWM Servo Motor Driver I2C Module For Arduino Robot

Features:   This board/chip uses I2C 7-bit address between 0x60-0x80, selectable with jumpers Terminal block for power input (or you can use the 0.1" breakouts on the side) Reverse polarity protection on the terminal block input Green power-good LED 3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are slightly wider than 0.1" so you can only stack 4 next to each other on 0.1" header "Chain-able" design A spot to place a big capacitor on the V+ line (in case you need it) 220 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial Solder jumpers for the 6 address select pins i2c-controlled PWM driver with a built in clock. Unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running! It is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4+ forward voltages) 6 address select pins so you can wire up to 62 of these on a single i2c bus, a total of 992 outputs - that's a lot of servos or LEDs Adjustable frequency PWM up to about 1.6 KHz 12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate Configurable push-pull or open-drain output Output enable pin to quickly disable all the outputs   Package included: 5 x PCA9685 16-Channel 12-bit PWM Servo Motor Driver I2C Module For Arduino Robot  

Description: Using single chip embedded technology; Peak 4.5v to 10V level, jumper inserted at 5V. This level of signal mainly for conventional industrial control card (such as MACH3 board Card) 5V CPU interface; Easy to operate, can be fine-tuned by potentiometer; Select the PWM signal input level range through short cap; Module is small, easy to carry and use; Module operating voltage: DC12V-30V (power requirements: greater than 100mA); PWM signal reception frequency range: 1KHz-3KHz; Peak 12 to 24V level, jumper inserted in the 24V. This level of signal is mainly aimed at the conventional PLC interface; Conversion range: 0% -100% PWM to 0-10v voltage; Allowable error: 5%; Pin Definition: VCC: working power 12-30V GND: ground PWM: input PWM signal positive GND: input voltage ground VOUT: Output voltage: 0-10V GND: output ground Package included: 3 x PWM To Voltage Conversion Module 0-100% PWM To 0-10V Voltage

Description: Working Voltage: DC 5-12V Conversion Range: 0-5V/0-10V to 0-100% PWM Allowable Error: 1-3% Pin Definition: VCC: working power 5-12V GND: ground VIN: input voltage:0-10V GND: input voltage ground GND: output PWM ground PWM: output PWM Package included: 5 x Voltage To PWM Converter Module

Functional Description:   MOS FET electronic switch module, you can use low-voltage and small current to control high-power equipment, motors, light bulbs, high-power LED. For example: you want a device output 5V signal, control a 12V motor switch. This module can be achieved.   Feature:   Input control voltage 3.3V-12V Output control voltage: 5-36V Board using optocoupler isolation, 2-terminal voltage completely separate. Input control using 2 pins to control, one connect ground one connect control to direct control the switch. Control current: 1-5MA control voltage is different, the current difference is mainly the loss in the LED. Charged current: 0-22A, if greater than 5A need to add heat sink. Board comes with LED indicator Controlled input and output with screw terminal block 2.54MM pin control terminal, is easy wiring. Control can be directly connected to the microcontroller IO. You can use the microcontroller ARDUINO PWM motor speed control, lamp brightness and so on. High current attention to add heat sink. Board size: 4 x 3 cm   Package includes:   5 x MOS Field Effect Transistor Module

Functional Description: MOS FET electronic switch module, you can use low-voltage and small current to control high-power equipment, motors, light bulbs, high-power LED. For example: you want a device output 5V signal, control a 12V motor switch. This module can be achieved. Feature: Input control voltage 3.3V-12V Output control voltage: 5-36V Board using optocoupler isolation, 2-terminal voltage completely separate. Input control using 2 pins to control, one connect ground one connect control to direct control the switch. Control current: 1-5MA control voltage is different, the current difference is mainly the loss in the LED. Charged current: 0-22A, if greater than 5A need to add heat sink. Board comes with LED indicator Controlled input and output with screw terminal block 2.54MM pin control terminal, is easy wiring. Control can be directly connected to the microcontroller IO. You can use the microcontroller ARDUINO PWM motor speed control, lamp brightness and so on. High current attention to add heat sink. Board size: 4 x 3 cm Package includes: 10 x MOS Field Effect Transistor Module

  ATMEL ATmega328P-PU 8 Bit Microcontroller IC 28 Pin DIP    Product Details   ATmega328P 8-Bit megaAVR picoPower Microcontrollers The Atmel ATmega328P Microcontroller is an 8-bit megaAVR device based on the AVR enhanced RISC architecture. Featured is picoPower technology that offers ultra-low power consumption and low-power sleep modes, ideal for battery powered applications. Microcontroller Features •20 MHz Max. Operating Frequency •Up to 20 MIPS at 20 MHz •32 KB Flash •1024 B EEPROM •2 KB SRAM •131 Instructions – Most single clock cycle execution •32 General Purpose Registers •23 GPIO •Power-on Reset and Programmable Brown-out Detection •Internal Calibrated Oscillator •External and Internal Interrupt Sources •Six Power-Saving Sleep Modes •Internal and External Interrupts •Fully Static Operation Peripheral Features •10-bit 15 ksps Analogue-to-Digital Converter (ADC) – 8 or 6 channels •Capacitive Touch Sense – 16 channels •Temperature Sensor •Two 8-bit Timers •One 16-bit Timer •Output Compare Module – 6 channels •Six PWM Channels •Programmable Serial USART •Master/Slave SPI Serial Interface •Byte-oriented 2-wire Serial Interface – I2C compatible •Programmable Watchdog Timer with Separate Oscillator •Analogue Comparator •Interrupt and Wake-up on Pin Change      

3.3V 8MHz ATmega328P-AU Pro Mini Microcontroller Board With Pins For Arduino Description: The Pro Mini is a microcontroller board based on the ATmega328 for Arduino. With 14 digital input / output pins (of which 6 can be used as PWM outputs), 8 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. Six pin header can be connected to an FTDI cable to provide USB power and communication to the board. Feature: Using ATmel Atmega328P-AU MCU TTL level serial port transceiver RX / TX Six PWM ports D3, D5, D6, D9, D10, D11 Supporting serial download Supporting external DC 2.4V ~ 12V power Supporting 12V (or below) battery power Specification: Microcontroller: ATmega328 Operating Voltage: 3.3V Input Voltage: 3.35V ~ 12V Digital I/O Pins: 14 (of which 6 provide PWM output) Analog Input Pins: 8 DC Current Per I/O Pin: 40mA Flash Memory: 32KB (of which 2KB used by bootloader) SRAM: 1KB EEPROM: 512bytes Clock Speed: 8MHz Size: 33.3 x 17.6mm Package included: 1 x 3.3V 8MHz Pro Mini(With Pins)  

3Pcs 3.3V 8MHz ATmega328P-AU Pro Mini Microcontroller Board For Arduino Description: The Pro Mini is a microcontroller board based on the ATmega328 for Arduino. With 14 digital input / output pins (of which 6 can be used as PWM outputs), 8 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. Six pin header can be connected to an FTDI cable to provide USB power and communication to the board. Feature: Using ATmel Atmega328P-AU MCU TTL level serial port transceiver RX / TX Six PWM ports D3, D5, D6, D9, D10, D11 Supporting serial download Supporting external DC 2.4V ~ 12V power Supporting 12V (or below) battery power Specification: Microcontroller: ATmega328 Operating Voltage: 3.3V Input Voltage: 3.35V ~ 12V Digital I/O Pins: 14 (of which 6 provide PWM output) Analog Input Pins: 8 DC Current Per I/O Pin: 40mA Flash Memory: 32KB (of which 2KB used by bootloader) SRAM: 1KB EEPROM: 512bytes Clock Speed: 8MHz Size: 33.3 x 17.6mm Package included: 3 x 3.3V 8MHz Pro Mini(With Pins)

Description ARD DUE 32BIT ARM PLATFORM | Microcontroller A000062-The Arduino Due is a Microcontroller Board based on the Atmel SAM3X8E ARM Cortex-M3 CPU Overview The Arduino Due is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU It is the first Arduino board based on a 32-bit ARM core microcontroller It has 54 digital input/output pins (of which 12 can be used as PWM outputs), 12 analog inputs, 4 UARTs (hardware serial ports), a 84 MHz clock, an USB OTG capable connection, 2 DAC (digital to analog), 2 TWI, a power jack, an SPI header, a JTAG header, a reset button and an erase button The board contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started The Due is compatible with all Arduino shields that work at 3.3V and are compliant with the 1.0 Arduino pinout The Due follows the 1.0 pinout: TWI: SDA and SCL pins that are near to the AREF pin The IOREF pin which allows an attached shield with the proper configuration to adapt to the voltage provided by the board. This enables shield compatibility with a 3.3V board like the Due and AVR-based boards which operate at 5V An unconnected pin, reserved for future use Warning: Unlike other Arduino boards, the Arduino Due board runs at 3.3V The maximum voltage that the I/O pins can tolerate is 3.3V Providing higher voltages, like 5V to an I/O pin could damage the board Specifications Microcontroller: AT91SAM3X8E Operating Voltage: 3.3V Input Voltage (recommended): 7~12V Input Voltage (limits): 6~20V Digital I/O Pins: 54 (of which 12 provide PWM output) Analog Input Pins: 12 Analog Outputs Pins: 2 (DAC) Total DC Output Current on all I/O lines: 130 mA DC Current for 3.3V Pin: 800 mA DC Current for 5V Pin: 800 mA Flash Memory: 512 KB all available for the user applications SRAM: 96 KB (two banks: 64KB and 32KB) Clock Speed: 84 MHz More Information View More Information More Products View More Products

Description Overview Arduino product family is a great learning platform for electronics, programming and robotics. But most projects at some point require mobility. This board allows for motor control with Arduino right away. Stack up this shield on your controller and drive motors with higher power requirements. Depending on the motor of choice, you can make it fast or handle a higher payload. This Arduino Compatible Motor Shield (2A) uses L298P chip which allow to drive two 7-12V DC motors with maximum 2A current. This shield can be directly mounted onto standard Arduino Duemilanove and Arduino Mega. Speed control is achieved through conventional PWM which can be obtained from Arduino’s PWM output Pin 5 and 6. The enable/disable function of the motor control is signalled by Arduino Digital Pin 4 and 7. The Motor shield can be powered directly from Arduino or from external power source. It is strongly encouraged to use external power supply to power the motor shield. Specifications Logic Control Voltage: 5V (From Arduino) Motor Driven Voltage: 6.5~12v(VIN Power Supply),4.8~35V (External Power Source) 2 way motor drive Logic supply current Is: 36mA Motor Driven current Io: 2A Maximum power consumption:25W Up to 2A current each way Pin 4,5,6,7 are used to drive two DC motor Support PWM speed control Support PLL advance speed control Size: 55x55mm Compatibility: Arduino UNO Arduino UNO R3 Arduino Mega 1280/2560 More Products View More Products

Power Pins: GND - this is the common ground for all power and logic BAT - this is the positive voltage to/from the JST jack for the optional Lipoly battery USB - this is the positive voltage to/from the micro USB jack if connected EN - this is the 3.3V regulator's enable pin. It's pulled up, so connect to ground to disable the 3.3V regulator 3V - this is the output from the 3.3V regulator. The regulator can supply 500mA peak but half of that is drawn by the ESP32, and it's a fairly power-hungry chip. So if you need a ton of power for stuff like LEDs, motors, etc. Use the USB or BAT pins, and an additional regulator Logic pins: This is the general purpose I/O pin set for the microcontroller. All logic is 3.3V The ESP32 runs on 3.3V power and logic, and unless otherwise specified, GPIO pins are not 5V safe! Serial pins: RX and TX are the additional Serial1 pins, and are not connected to the USB/Serial converter. That means you can use them to connect to UART-devices like GPS's, fingerprint sensors, etc. The TX pin is the output from the module. The RX pin is the input into the module. Both are 3.3V logic I2C & SPI pins: You can use the ESP32 to control I2C and SPI devices, sensors, outputs, etc. If using with Arduino, the standard Wire and SPI devices work as you'd expect! Note that the I2C pins do not have pullup resistors already! You must add them if you want to communicate with an I2C device GPIO & Analog Pins: There are tons of GPIO and analog inputs available to you for connecting LEDs, buttons, switches, sensors, etc. Here's the remaining pins available. Bottom row: A0 - this is an analog input A0 and also an analog output DAC2. It can also be used as a GPIO #26 A1 - this is an analog input A1 and also an analog output DAC1. It can also be used as a GPIO #25 A2 - this is an analog input A2 and also GPI #34. Note it is not an output-capable pin! A3 - this is an analog input A3 and also GPI #39. Note it is not an output-capable pin! A4 - this is an analog input A4 and also GPIO #36 A5 - this is an analog input A5 and also GPIO #4 21 - General purpose IO pin #21 Top row: 13 - This is GPIO #13 and also an analog input A12. It's also connected to the red LED next to the USB portIt's also connected to the red LED next to the USB port 12 - This is GPIO #12 and also an analog input A11. This pin has a pull-down resistor built into it, we recommend using it as an output only, or making sure that the pull-down is not affected during boot. 27 - This is GPIO #27 and also an analog input A10 33 - This is GPIO #33 and also an analog input A9. It can also be used to connect a 32 KHz crystal. 15 - This is GPIO #15 and also an analog input A8 32 - This is GPIO #32 and also an analog input A7. It can also be used to connect a 32 KHz crystal. 14 - This is GPIO #15 and also an analog input A6 http://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers Here are: https://espressif.com/en/products/hardware/esp32/overview 240 MHz dual core Tensilica LX6 microcontroller with 600 DMIPS Integrated 520 KB SRAM Integrated 802.11b/g/n HT40 Wi-Fi transceiver, baseband, stack and LWIP Integrated dual mode Bluetooth (classic and BLE) 4 MByte flash On-board PCB antenna Ultra-low noise analog amplifier Hall sensor 10x capacitive touch interface 32 kHz crystal oscillator 3 x UARTs (only two are configured by default in the Feather Arduino IDE support, one UART is used for bootloading/debug) 2 x I2C (only one is configured by default in the Feather Arduino IDE support) 12 x ADC input channels 2 x I2S Audio 2 x DAC PWM/timer input/output available on every GPIO pin OpenOCD debug interface with 32 kB TRAX buffer SDIO master/slave 50 MHz SD-card interface support Package included: 1 x Wemos® TTGO ESP32 Dev Module WiFi + Bluetooth 4MB Flash

Product introduction: JDY-08 passthrough module is based on bluetooth 4.0 protocol standard, scope of work frequency of 2.4 GHZ, modulation method for GFSK, maximum transmitted power of 0 db, the largest launch distance of 80 meters, adopt TICC2541 chip design, support the user through the AT command to modify the device name, service UUID, transmission power, such as matching password instructions, convenient use and flexible. Function introduction: 1: WeChat pass-through (supports AirSync protocol, applies to WeChat H5 or factory server communication, including long packet data parsing and sending and receiving) 2: APP transmission (support Android and IOS data transmission) 3: iBeacon mode (support WeChat shake protocol and apple iBeacon protocol) 4: Sensor mode (temperature, humidity and many other sensor data acquisition applications) 5: host transmission mode (data transmission between application modules, communication between host and slave) 6: host observer mode (application sensor, indoor positioning) 7: PWM mode (used for motor speed regulation and LED light brightness adjustment) 8: IO mode (for mobile phone control relay or LED on/off) 9: indoor chamber location application (application of collecting iBeacon data to achieve range positioning) Technical parameters: 1: the communication rate is 3K Bytes/ second 2: 1024Bytes can be written in the serial port of APP transmission 3: the effective communication distance is 15 to 30 meters 4: support PWRC pin to control sleep 5: support IO port control disconnect Function description of two pins: DISC pin: for active disconnecting of bluetooth connection (default high level, low level disconnecting) PWRC pin: used to wake up sleep (default to sleep state). Use this pin to ground the AT command VCC pin: is the power pin of the module, and the power supply voltage ranges from 3.6V to 6V GND pin: power source ground TXD pin: serial port output pins RXD pin: serial input pins Package included: 10 x JDY-08 4.0 Bluetooth Module BLE CC2541 Airsync For IBeacon

3pcs Pro Micro 5V 16M Mini Leonardo Microcontroller Development Board For Arduino Description: This microcontroller development board has 4 channel 10 bit ADC, 5 PWM pins, 12 DIO, and a hardware serial connection Rx and Tx you are familiar with. Running on 16MHz and 5V, this board will remind you a lot of other Arduino compatible boards that you like. There is a voltage regulator on board, so it can accept up to 12V DC. If you are supplying an unstable power supply board, be sure to connect to the "RAW" not on the VCC pin. We have also added a PTC fuse and diode protection to the power circuit and to correct the RX and LED TX circuits. Feature: - ATMEGA32U4 running in 5V / 16MHz - Support Arduino IDE V1.0.1 - Micro USB interface programming on the board - Four 10-bit ADC pin - 12 digital I / O (5 PWM capability) - Rx and Tx hardware serial connection Package included: 3 x Mini Leonardo Microcontroller Development Board

- CNC Shield Board Version: 3.0 Color: Red Size(L*W*H): 68 x 53 x 18 mm Voltage: DC 12~36 V (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.) Features: 1. Uses removable A4988 or DRV8825 compatible stepper drivers. 2. The extension board can be used for carving machine, 3 d printer driver expansion board 3. GRBL 0.8 compatible. (Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals) 4. PWM Spindle and direction pins,4-Axis support (X, Y, Z, A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13) 5. Compact design. Stepper Motors can be connected with 4 pin molex connectors or soldered in place. 6. Please note that this is an unassembled kit and Basic soldering skills are needed. - A4988 Stepper Motor Driver Color: Red Size(L*W*H): 20 x 15 x 10 mm Thermal shutdown circuitry: Yes Crossover-current protection: Yes Ground fault protection: Yes Load short-circuit protection: Yes Compatible logic supply: 3.3V and 5 V Five selectable step modes: full, 1/2, 1/4, 1/8 and 1/16 Features: 1. Mix with slow current decay modes. 2. Internal UVLO and Low RDS (On) Output. 3. Automatic current decay mode detection/selection. 4. Synchronous rectification for low power dissipation. 5. Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. - Uno R3 Board MCU: ATmega328 Clock speed: 16 MHz USB interface: ATmega16U2 Operating voltage: 5 V I-I / O pin output current: 40 mA max 3.3 V output current: 150 mA max Digital I/O pins: 14 (including 6 with PWM capability) Analog input pins: 6 EEPROM: 1 kB Static RAM (SRAM): 2 kB Flash memory: 32 kB Size(L*W*H): 68 x 53 x 10 mm Click to download universal course Package included: 3 x CNC Shield + UNO R3 Board + 4x A4988 Driver Kit

- CNC Shield Board Version: 3.0 Color: Red Size(L*W*H): 68 x 53 x 18 mm Voltage: DC 12~36 V (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.) Features: 1. Uses removable A4988 or DRV8825 compatible stepper drivers. 2. The extension board can be used for carving machine, 3 d printer driver expansion board 3. GRBL 0.8 compatible. (Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals) 4. PWM Spindle and direction pins,4-Axis support (X, Y, Z, A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13) 5. Compact design. Stepper Motors can be connected with 4 pin molex connectors or soldered in place. 6. Please note that this is an unassembled kit and Basic soldering skills are needed. - A4988 Stepper Motor Driver Color: Red Size(L*W*H): 20 x 15 x 10 mm Thermal shutdown circuitry: Yes Crossover-current protection: Yes Ground fault protection: Yes Load short-circuit protection: Yes Compatible logic supply: 3.3V and 5 V Five selectable step modes: full, 1/2, 1/4, 1/8 and 1/16 Features: 1. Mix with slow current decay modes. 2. Internal UVLO and Low RDS (On) Output. 3. Automatic current decay mode detection/selection. 4. Synchronous rectification for low power dissipation. 5. Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. - Uno R3 Board MCU: ATmega328 Clock speed: 16 MHz USB interface: ATmega16U2 Operating voltage: 5 V I-I / O pin output current: 40 mA max 3.3 V output current: 150 mA max Digital I/O pins: 14 (including 6 with PWM capability) Analog input pins: 6 EEPROM: 1 kB Static RAM (SRAM): 2 kB Flash memory: 32 kB Size(L*W*H): 68 x 53 x 10 mm Click to download universal course Package included: 1 x Uno R3 Board 1 x CNC Shield Board 4 x A4988 Stepper Motor Driver 4 x Heat Sink 1 x USB Cable 1 x 40-Pin Row Needles

Overview:   The SDS011 using principle of laser scattering,can get the particle concentration between 0.3 to 10um in the air. It with digital output and built-in fan is stable and reliable.   Characteristics:   1. Accurate and Reliable: laser detection, stable, good consistency; 2. Quick response: response time is less than 10 seconds when the scene changes; 3. Easy integration: UART output (or IO output can be customized), fan built-in; 4. High resolution: resolution of 0.3ug/m3.   Scope of application:   PM2.5 Detector Purifier Air Exchangers Filtering system Working principle:   Using laser scattering principle: Light scattering can be induced when particles go through the detecting area. The scattered light is transformed into electrical signals and these signals will be amplified and processed. The number and diameter of particles can be obtained by analysis because the signal waveform has certain relations with the particles diameter.   Technical Parameters:   No. Item Parameter 1 Measuring output PM2.5,PM10 2 Range 0.0-999.9 ug/m3 3 Power supply voltage 5V 4 Maximum working current 100mA 5 Sleep current 2 mA 6 Operating temperature range -20-50 7 Response time 1s 8 Serial data output frequency 1 time/s 9 Particle diameter resolution Less than 0.3um 10 Relative error 10% 11 Product size 71x70x23mm   Interface specification:   Pin Name explain 1 CTL Control pin, reserved 2 1um >0.3 Micron particle concentration, PWM Output 3 5V 5V power input 4 25um >2.5 Micron particle concentration, PWM Output 5 GND GND 6 R Serial port receiver RX 7 T Serial port transmission TX PS: The pitch of Interface is 2.54mm   Communication protocol:   Serial communication protocol: 9600 8N1. (Rate of 9600, data bits 8, parity none, stop bits 1) Serial report communication cycle: 1+0.5 seconds Data frame (10 bytes): message header + order+ data(6 bytes) + checksum + message trailer The number of bytes Name Content 0 message header AA 1 order C0

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA 3pcs Pro Micro 5V 16M Mini Leonardo Microcontroller Development Board For Arduino Description: This microcontroller development board has 4 channel 10 bit ADC, 5 PWM pins, 12 DIO, and a hardware serial connection Rx and Tx you are familiar with. Running on 16MHz and 5V, this board will remind you a lot of other Arduino compatible boards that you like. There is a voltage regulator on board, so it can accept up to 12V DC. If you are supplying an unstable power supply board, be sure to connect to the "RAW" not on the VCC pin. We have also added a PTC fuse and diode protection to the power circuit and to correct the RX and LED TX circuits. Feature: - ATMEGA32U4 running in 5V / 16MHz - Support Arduino IDE V1.0.1 - Micro USB interface programming on the board - Four 10-bit ADC pin - 12 digital I / O (5 PWM capability) - Rx and Tx hardware serial connection Package included: 3 x Mini Leonardo Microcontroller Development Board 3pcs Pro Micro 5V 16M Mini Leonardo Microcontroller Development Board For Arduino 3pcs Pro Micro 5V 16M Mini Leonardo Microcontroller Development Board For Arduino 3pcs Pro Micro 5V 16M Mini Leonardo Microcontroller Development Board For Arduino

Proto Shield V3 + Funduino Mega 2560 Kit For Arduino Proto Shield V3: Wide prototyping area Seamlessly plugged into the Arduino MEGA Arduino pinout Reset button Indicator of power and status Solder components directly ICSP connector 14 pin SMD footprint (50 mils pitch) 20 pin Through Hole footprint (100 mils pitch) Funduino Mega 2560: Microcontroller: ATmega2560 Operating Voltage: 5V Input Voltage(recommended): 7V ~ 12V Input Voltage(limits): 6V ~ 20V Digital I/O Pins: 54 (of which 14 provide PWM output) Analog Input Pins: 16 DC Current per I/O Pin: 40mA AC Current for 3.3V Pin: 50mA Flash Memory: 256KB (of which 4KB used by bootloader) SRAM: 8KB EEPROM: 4KB Clock Speed: 16MHz Package included: 1 x Funduino Mega 2560 1 x Proto Shield V3

Description:   The WeMos D1 mini V2 is minimal ESP8266 wifi board. The D1 mini is a mini wifi board based on ESP-8266EX.   Board size: 34.2mm*25.6mm More infos here:    Feature:   - 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except  D0) - 1 analog input(3.2V max input) - a Micro USB connection - Compatible with Arduino   - Compatible with nodemcu     What is new about V2:   1. Use BRT (Bias Resistor Transistor), easier into flash mode. 2. 30% increase in radiating area, more stable. Package included: 5 x WeMos D1 mini 10 x Long female pin 10 x Short female pin 10 x Normal pin

Product Description:   What's new about V2.3.0 Move the USB & Button to top.   Features: 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0) 1 analog input(3.2V max input) a Micro USB connection Compatible with Arduino  Compatible with  Nodemcu  lots of Shields Package included:   5 x Wemos D1 mini V2.3.0 10 x Long female pin 10 x Short female pin 10 x Normal pin

Description: 1. Compatible with Arduino IDE 1.5 (OSX/Win/Linux) 2. Fully signed drivers and executable for easy installation 3. USB programming, USB device emulation, USB-CDC virtual serial port emulation 4. 16 MHz AVR MCU - using a true 16Mhz precision crystal 5. 16KB Flash Memory (14.5K+ after bootloader) 6. Serial over USB debugging and communication! 7. 14 I/O Pins (2 shared with USB) 8. I2C, true SPI, UART, LIN, and USI 9. ADC on 10 pins 10. 3 PWM Channels (which can be assigned to a selection of pins) 11. Power via USB, or External Source - 5v or 6-16v (automatic selection) 12. On-board button that can be used as a reset, program, or user button - or can be disabled to use that pin as general i/o - without changing the bootloader 13. On-board 150mA 5V regulator 14. Power LED and Test/Status LED (on Pin 1) 15. User accessible solder jumpers to disable LEDs, and other features for lower power consumption 16. Two mounting holes. 17. Breadboard compatible pin out/spacing (the three side header pins are only for legacy shield support). Package included: 1 x Wemos® Digispark Pro Kickstarter Development Board

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Features: 11 digital input/output pins Interrupt/pwm/I2C/one-wire 1 analog input(3.2V max input) 16M bytes(128M bit) Flash New CP2104 USB-TO-UART IC Same size as D1 mini, but more light More info clicks: https://wiki.wemos.cc/products:d1:d1_mini Package included: 1 x D1 mini Pro 1 x ESP8266 Series WiFi Wireless Antenna 2 x Long female pin 2 x Short female pin 2 x Normal pin,,,,,, LILYGO D1 Mini Pro-16 Module + ESP8266 Series WiFi Wireless Antenna LILYGO D1 Mini Pro-16 Module + ESP8266 Series WiFi Wireless Antenna LILYGO D1 Mini Pro-16 Module + ESP8266 Series WiFi Wireless Antenna

Feature: Professional version of the Mini Pro is a micro controller circuit board. It has 20 digital input/output pin (six of them can be used as a PWM output), 8 analog input, a 16MHZ resonator, a reset button, the installation hole lead foot. Technical parameters: 14 digital input/output port RX and TX, D2 ~ D13 8 analog input port A0 ~ A7 1 pair of TTL level serial port transceiver port RX / TX 6 PWM port, D3, D5, D6, D9, D10, D11 Using Atmel Atmega328P - AU microcontroller Support serial download Support for external 5 V ~ 12 V dc power supply Support 9v battery powered 16 MHZ clock frequency Size: 33.3 x 18 mm Package included: 1 x Pro Mini ATMEGA328P 5V/16M Improved Version Module

Description: BS Micro is based on the ATmeag32U4 Micro controller board. It owns 14 general purpose digital input/output pin (five can be used as a PWM output, 6 can be used as an analog input). On board with 16 MHZ crystals and A USB - type A interface based on PCB. In addition to A 3.3 V power supply output independently, it will not affect the work of MCU power output, the output power depends on the USB port power supply capacity, but is not higher than 1.5 A. Bat has burn Arduino bootloader, so it is compatible with the Arduino IDE. Although it is small in size, but it has rich interface, make it not only has the function of the traditional controller, and realize the function of the mouse, keyboard on the computer, a serial port function, and can realize communication with computer directly. It like most other MCU control board is a big difference between programming does not need additional use programmer, directly from the USB programming. This is not only convenient, stable and reliable, also save the expense of a programmer. Product features: Master: ATmega32u4 Working voltage: 5 v Digital I/o number: 14 PWM output number: 5 Analog input number: 6 Other peripherals: USB, UART, I2C, SPI, 3.3 V Power Supply Output 40 ma IO driving force: Flash: 32 KB (ATmega32u4) including 4 KB is Arduino bootloader footprint SRAM: 2.5 KB (ATmega32u4) EEPROM: 1 KB (ATmega32u4) 16 MHZ frequency: Width: 800 mils (20.3 mm) Length: 1200 mils (30.5 mm) Weight: 2.5 g (not including packaging and accessories) Package included: 3 x Wemos® ATMega32U4 BS Micro Pro Micro Leonardo

XL4005E1 A 300KHz 32V Buck DC to DC Converter SMD The XL4005 is a 300KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 5A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. When short protection function happens, the operation frequency will be reduced from 300KHz to 60KHz. An internal compensation block is built in to minimize external component count. Features 1. Wide 5V to 32V Input Voltage Range 2. Output Adjustable from 0.8V to 30V 3. Maximum Duty Cycle 100% 4. Minimum Drop Out 0.6V 5. Fixed 300KHz Switching Frequency 6. 5A Constant Output Current Capability 7. Internal Optimize Power MOSFET 8. High efficiency 9. Excellent line and load regulation 10. TTL shutdown capability 11. EN pin with hysteresis function This item is available in stock and is not drop shipped. This avoids delays, customs and extra VAT.