5pcs microcontroller

5Pcs A87 4 Channel Optocoupler Isolation Module High And Low Level Expansion Board For Arduino Description:1. Function: Use the low level to control the high level. Such as the use of single-chip 3V or 5V voltage control 9V or 12v voltage.2. HVCC should not exceed 24V. Output OUT1 / OUT2 / OUT3 / OUT4 output current equal to HVCC / 5.1K, absorption current 500ma.3. This module uses TLP281 chip (for Toshiba).4. Schematic:Input and output instructions: Input: IN1 / IN2 / IN3 / IN4, then the microcontroller or Arduino IO port, GND and the Arduino development board connected to the GND.IN1 / IN2 / IN3 / IN4 controls OUT1 / OUT2 / OUT3 / OUT4, respectively.Output: OUT1 / OUT2 / OUT3 / OUT4Output: HVCC: Connect the controlled high voltage positive, HGND connected to the controlled high voltage negativeUse: When IN1 is high, the corresponding OUT1 voltage is equal to HVCC, when IN1 is low, the OUT1 voltage is equal to HGNDUse examples The following example shows how to use the microcontroller's IO port to control the 24V motor rotation. Figure motor operating voltage of 24V,red ' ' that the motor power positive, black '-' that the motor power supply negative. When the microcontroller IO_0 output high, the motor rotate,when the IO_0 port output low, the motor stops rotating.Package included:5 x A87 4 Channel Optocoupler Isolation Module

5Pcs Soil Hygrometer Humidity Detection Moisture Sensor For Arduino Description: This is a summary of the soil moisture sensor can be used to detect moisture, when the soil is dry, the module outputs a high level, whereas output low. Using this sensor make an automatic watering system, so that your garden plants without people to manage. Operating voltage: 3.3V~5V. Adjustable sensitivity (shown in blue digital potentiometer adjustment) Dual output mode,analog output more accurate. A fixed bolt hole for easy installation. With power indicator (red) and digital switching output indicator (green). Having LM393 comparator chip, stable. Panel PCB Dimension: 3cm x 1.5cm. Soil Probe Dimension: 6cm x 2cm. Cable Length: 21cm. VCC: 3.3V-5V. GND: GND. DO: digital output interface(0 and 1). AO: analog output interface. Instructions for Use: 1. Soil moisture module is most sensitive to the ambient humidity is generally used to detect the moisture content of the soil. 2. Module to reach the threshold value is set in the soil moisture, DO port output high, when the the soil humidity exceeds a set threshold value, the module D0 output low. 3. The digital output D0 can be connected directly with the microcontroller to detect high and low by the microcontroller to detect soil moisture. 4. The digital outputs DO shop relay module can directly drive the buzzer module, which can form a soil moisture alarm equipment. 5. Analog output AO and AD module connected through the AD converter, you can get more precise values of soil moisture. Package Included: 5 x Soil moisture detector module 5 x Probe 5 x 2P Jumper Cable

5Pcs CJMCU-MCP4725 I2C DAC Breakout Development Board Module   Description:    Youve always wanted to output analog voltages from a microcontroller, the MCP4725 is the DAC that will let you do it! The CJMCU-MCP4725 is an I2C controlled Digital-to-Analog converter (DAC). A DAC allows you to send analog signal, such as a sine wave, from a digital source, such as the I2C interface on the Arduino microcontroller. Digital to analog converters are great for sound generation, musical instruments, and many other creative projects!   This version of the CJMCU-MCP4725 Breakout fixes a few issues with the board including the IC footprint, the I2C pinout, changes the overall board dimensions to better fit your projects, and a few more minor tweaks. This board breaks out each pin you will need to access and use the MCP4725 including GND and Signal OUT pins for connecting to an oscilloscope or any other device you need to hook up to the board. Also on board are SCL, SDA, VCC, and another GND for your basic I2C pinout. Additionally, if you are looking to have more than one MCP4725 on a bus, the pull-up resistors on this board can be disabled just check the Hookup Guide in the Documents section below for instructions and tips on doing this.   Feature:   12-bit resolution I2C Interface (Standard, Fast, and High-Speed supported) Small package 2.7V to 5.5V supply Internal EEPROM to store settings   Package included:   5 x CJMCU-MCP4725 I2C DAC Breakout Development Board Module

5Pcs MAX7219 Dot Matrix Module MCU LED Control Module Kit For Arduino Specifications: A single module can drive an 8 x 8 common cathode lattice Operating voltage: 5V Size: 5 x 3.2 x 1.5 cm (L x W x H) LED color: Red With four screws hole, aperture 3mm With input and output interfaces, supports multiple modules cascade Wiring instructions: 1. The module left side as an input port and the output port on the right 2. To control a single module, just connect the input port to the CPU 3. When cascading multiple modules, the input port of the first module connect to the CPU, the output port connect to the input port of the second one, and so on. In the case of 51 MCU: VCC → 5V GND → GND DIN → P22 CS → P21 CLK → P20 Note: 1. VCC and GND is not reversed, it would burn the chip! 2. When the 51 microcontroller P0 port controlling, must be connected to the pull-up resistor, it is recommended that the resistance of 4.7K--10K 3. Please install lattice into the round hole first, and then insert the round hole to PCB board and weld. Face the side of lattice with words, from left to right pin order is 123456. PCB board 1st pin is square pad! 4. Electrolytic capacitors long-pin as positive, short-pin as negative; ceramic capacitor hsa no positive and negative points Package included: 5 x LED module 5 x Dupont line (5P-20cm)

5Pcs I2C RTC DS1307 AT24C32 Real Time Clock Module For AVR ARM PIC SMD Description: 24C32 32K I2C EEPROM memory Using LIR2032 rechargeable lithium battery with charging circuit Solve the problem of no literacy of the DS1307 with backup battery Support timing 1 year of the DS1307 after fully charged Leads to the DS1307 clock pin provides a clock signal for the microcontroller Other I2C devices can be cascaded Size: 27 x 28 x 8.4mm Note: Because of shipping restrictions, we won't ship battery Package included: 5 x DS1307 module (battery is not included)

5Pcs Socket Adapter Module Board For 8 Pin NRF24L01+ Wireless Transceiver Module Specification: Voltage: 3.3V It's for 8 Pin NRF24L01+ Module A simple socket board which is for NRF24L01 wireless module On-board AMS1117-3.3 chip It can be used with NRF24L01 wireless module Dimension: 26 x 19 x 12mm Note: Wireless module operating voltage is generally 3.3V, while the ordinary 51 microcontroller 5V, this module is wireless module with 51 single system board used in conjunction. Data Link: https://pan.baidu.com/s/1o6ug0yu Package included: 5 x Wireless Socket Adapter Module Board

5Pcs 5V MAX485 TTL To RS485 Converter Module Board For Arduino Feature: Operating voltage: 5V On-board MAX485 chip A low power consumption for the RS-485 communication Slew-rate limited transceiver 5.08mm pitch 2P terminal Convenient RS-485 communication wiring All pins of chip have been lead to can be controlled through the microcontroller Board size: 44 x 14mm Package included: 5 x MAX485 TTL to RS485 module

5Pcs MAX7219 Red 8 Bit Digital Tube LED Display Module For Arduino MCU Description: MAX7219 is an integrated serial input / output common-cathode display drivers, which connects the microprocessor and 8 bit 7-segment digital LED display, you can also connect a bar graph display or 64 separate LED. Includes an on-chip type B BCD encoders, multi-channel scanning loop, segment word driver, but also a 8x8 static RAM that stores each data. Only one external register is used to set the current of each LED segment. A convenient four-wire serial interface can connect all common microprocessor. Each data can be addressed in the update without rewriting all displays. MAX7219 also allows the user to select each data encoding or no coding. The entire device includes a 150μA low-power shutdown mode, analog and digital brightness control, a scan-limit register allows the user to display 1-8 bit data, there is an all LED light detection mode. Feature: 0.36 inch Common cathode Only need three IO ports can drive 8 bit digital tube The module compatible of 5V / 3.3V microcontroller (51 / AVR / STM32...) PCV board four corners of the fixed copper stud, which can effectively precent short circuit accidents happen Wiring instructions (a program, for example, you can pick any IO port definition can be modified in the program): VCC to 5V, GND to GND, DIN to P00, CLK to P02, CS to P01 Note: VCC and GND do not reversed, it would burn the chip. 51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines. Package included: 5 x MAX7219 8 bit digital tube module 20 x Copper pillar 20 x Screws

Description: CJMCU-1286 is a PIC microcontroller minimum system, running stability and high reliability, SCM internal resources are relatively small, so the microcontroller is simple and convenient to use. The operating voltage is 1.8V - 5.5V. Package included: 5 x CJMCU-1286 PIC16F1823 Microcontroller Development Board

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Buy 5Pcs MAX7219 Dot Matrix Module Microcontroller LED Module Display Module MAX7219 DIY Kit for R276.76

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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: Multifunction USB converter board fully supports Win8, Win7, WinXp,WinCE, Linux, 32-bit, 64-bit systems it! The history of the most powerful USB serial debugging tools, set USB to serial (TTL), to 232, turn 485, TTL, 232,485 conversion six practical function in a professional debugging tools, and the other supports 3.3V, 5V Oh the power output. Module ingenious design, making the board at the same time put the heat shrink tubing protection, without affecting the operation of the module. Module easy to operate, simple and can be used for single-chip program download, serial communications, 485, etc., are carried out pro microcontroller development essential artifact! !   Module Features:   Module size: A compact design, the module is only 3.5 * 1.8CM ultra-small size, even if the design is very compact laptop plugged module does not affect the other USB port to insert other devices. Power Output: Supports 5V / 500mA, 3.3V / 100mA power output, you can easily give 3.3V or 5V power microcontroller download program. Module Protection: onboard 500mA self-recovery fuse, always protect your computer from a large current module and harm; supporting transparent shrink tube to prevent static electricity or electrical conductor hands of the module short circuit, causing damage to the module (put Heat Shrink Tubing will not affect the operation of your module oh). Operation: to achieve mutual conversion USB, TTL, 232,485 physical switch function switch, please read the specific operation. Indicator: connection, receive, send indicator lets you know whether the real-time module is connected to the computer or on the send and receive data. Communication quality: clever circuit design, PCB layout professional, making module communication efficient, stable, communication baud rate can reach up to 2Mbps. PCB Quality: Module chips used are industrial grade chips, modules for mass production, professional SMT chip, anti-static packaging after rigorous testing. Module interface: module left 3.3V, 5V, GND power supply interface, TTL level serial TXD, RXD, serial 232, 232T, 232R interface, 485 A, B interface, and DTR, RTS interface, easy DSP430 and other microcontrollers the program downloads. Package included: 5 x 6 In 1 CP2102 USB To TTL 485 232 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

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Parameter: Power supply: 3.3V or 5V, depending on the power supply voltage of the microcontroller SPI mode: 4-wire system SDIO mode: 6-wire system LED light 4 X fixed positioning holes Package included: 5 X Micro card reader module 5pcs 3.5V / 5V Micro SD Card Module TF Card Reader SDIO/SPI Interface Mini TF Card Module 5pcs 3.5V / 5V Micro SD Card Module TF Card Reader SDIO/SPI Interface Mini TF Card Module 5pcs 3.5V / 5V Micro SD Card Module TF Card Reader SDIO/SPI Interface Mini TF Card Module

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Description: Trigger mode: High level 5V relay module Can be used for microcontroller development board module or home appliance control 5V - 12V TTL control signal Can control DC or AC signal, also 220V AC load Normally open / closed contact Power indicator Controlled lights bright when pull and not shine when disconnect Increase the transistor drive relay coils, control pins high impedance Control pins have pull down circuit to prevent malfunction of relay vacant Package included: 5 x 5V 1 channel relay module 5Pcs 5V Relay 5-12V TTL Signal 1 Channel Module High Level Expansion Board For Arduino 5Pcs 5V Relay 5-12V TTL Signal 1 Channel Module High Level Expansion Board For Arduino 5Pcs 5V Relay 5-12V TTL Signal 1 Channel Module High Level Expansion Board For Arduino

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Description: 1. The EasyDriver is a simple to use stepper motor driver, compatible with anything that can output a digital 0V to 5V pulse. (or 0V to 3.3V pulse if you solder SJ2 closed on the EasyDriver) 2. EasyDriver requires a 7V to 30V supply to power the motor and can power any voltage of stepper motor. 3. The EasyDriver has an on board voltage regulator for the digital interface that can be set to 5V or 3.3V. Connect a 4-wire stepper motor and a microcontroller and you've got precision motor control! EasyDriver drives bi-polar motors, and motors wired as bi-polar. I.e. 4, 6, or 8 wire stepper motors. 4. It provides much more flexibility and control over your stepper motor, when compared to older versions. The microstep select (MS1 and MS2) pins of the A3967 are broken out allowing adjustments to the microstepping resolution. The sleep and enable pins are also broken out for further control.cjmcu made. Features: 1. MS1 and MS2 pins broken out to change microstepping resolution to full, half, quarter and eighth steps (defaults to eighth) 2. Compatible with 4, 6, and 8 wire stepper motors of any voltage 3. Adjustable current control from 150mA / phase to 750mA / phase 4. Power supply range from 7V to 30V. The higher the voltage, the higher the torque at high speeds 5. Distribution pin, not welded, this module is open source Note: Do not connect or disconnect a motor while the driver is energized.This will cause permanent damage to the A3967 IC. Chip data: https://www.alldatasheetcn.com/datasheet-pdf/pdf/83571/ALLEGRO/A3967.html Package included: 5 X A3967 easy driver stepper motor driver board 5pcs DC 7V To 30V 150mA To 750mA A3967 Easy Driver Stepper Motor Driver Board For Arduino 5pcs DC 7V To 30V 150mA To 750mA A3967 Easy Driver Stepper Motor Driver Board For Arduino 5pcs DC 7V To 30V 150mA To 750mA A3967 Easy Driver Stepper Motor Driver Board For Arduino

Specification: Voltage: 5V Frequency: 900 1800 MHz Stand by current: Working current: Baud: 9600 or change by sending AT+IPR=xxxx Interface: TTL Commands: Regular AT commands Connector: 5V GND TxD RxD Antenna: Please solder a copper wire to the board or use an IPEX socket Temperatures: -30 C to 80 C Functions: Send/receive SMS messages and GPRS data. Feature: Excellent for remote sensing, experiments, alarms and automatic data collection. The control port is a regular serial port. You may connect it directly with a microcontroller such as Arduino, or you can use a USB to serial port adapter and send commands directly from a computer. Note: This is a DIY kit, you need to have some knowledge of electronics and ability. Package includes: 5 x DIY Kit Complete schematic:

Specification: Microcontroller Atmel ATmega328 Operating Voltage (logic level): 5V Input Voltage (recommended): 7V ~ 12V Input Voltage (limits): 6V ~ 20 V 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 (ATmega328) (of which 2 KB used by bootloader) SRAM: 2KB (ATmega328) EEPROM: 1KB (ATmega328) Clock Speed: 16MHz Note: Improved USB chip for speed and stability using WIN7/WIN8. This version comes with the pin headers unsoldered and not included the USB cable. Package included: 5 x No welding Arduino Compatible Nano V3.0 Board

Description: Professional version Arduino Mini Pro is a micro-controller board. It has 14 digital input / output pins (of which 6 can be used as PWM outputs), 8 analog inputs, a 16MHz resonator, a reset button, mounting hole pin head. Parameter: - 14 digital input / output port: RX, TX, D2 ~ D13, - 8 analog input port: A0 ~ A7 - A pair of TTL level serial port transceiver: RX / TX - 6 PWM port: D3, D5, D6, D9, D10, D11 - Use Atmega328P-AU microcontroller - Support serial download - Support external 3.3V ~ 12V DC power supply - Support 9V battery - Clock frequency:16MHz - Size: 33.3 * 18.0 (mm) Package included: 5 x Module

Feature: Supply voltage: 4-5.5V Dimensions: 75 x 85mm Principle: This kit contains 32 LED arranged in a heart-shaped pattern, driven by the IO port (active low); Write program control IO port to high and low level, the LED lights off or on, forming a variety of patterns effects, especially when used at night, very dynamic. Circuit is divided into three parts: the minimum system circuits, power circuits, and heart-shaped lamp circuit; Connect power 4-5.5V, press S1 latch switch (this circuit design two power interface, easy to operate), the microcontroller begin to work, 32 IO ports each string limiting resistor and LED lights connected to VCC, which LED lights which IO port is low, which is fully controlled by the program; This kit has been programmed, after assembled can be connected to display all kinds of tricks. Installation Notes: Pay attention to polarity when installing light-emitting diodes and electrolytic capacitors, long legs is positive. Note the U port direction when you install the chip seat, the positive and negative power supply can not be wrong, otherwise it will burn the chip. The middle of plug socket is positive, the outside is negative. Package included: 5 x Heart Shape LED Flashing Kit Test photos, for reference only!

Description: USB TO RS232 TTL PL2303HX Auto Converter Module Adapter 5V Output, provides the best and convenient way to connect your RS232 TTL devices or DEMO BRD. To your computer, via the usb port. Specification: Built-in TTL COM PC-PL2303HX Chip Standard USB type A male and TTL 4 pin connector Cable length: 1000mm (39 3/8 in) Simple and Easy way to give USB support to your designs Available for Linux, Mac, WinCE and Windows (XP, 2003), Vista, Win 7 Black cable-----GND Green cable----TXD White cable----RXD Red cable ---- VCC (5V) PL2303 Windows Driver Download Connection method: Brush requires only three lines, generally used only three signal lines RX TX GND, VCC. Note: After setting 3.3V and 5.0V output (this is to the microcontroller power supply, no need to upgrade the machine) please put the small plate unplug from the computer, set the jumper to take, do not charged to avoid damage to the device. Voltage: 5V. All you have to do is pop the plastic cover near the USB connector and re-solder the power from 5v to 3.3v to support 3.3v parts. Package included: 5 x USB to RS232/TTL PL2303HX cable adapter module

Features: Support Windows98 / ME / 2000 / XP / WIN7 / Vista / Linux / Mac Support devices with RS485 interface: surveillance cameras, video capture device, fingerprint attendance machine, PBX, CNC machine, microcontroller, etc. This converter provides two way serial communications signal Conversion between the RS485 To and from a personal computer USB port Using virtual serial COM port Self-powered from USB Description: Standard: USB2.0 standard, backward compatible, in line with the standard RS485 Direction control: the use of automatic data flow control, auto distinguish and control data transfer direction Baud: 300-9216000bps, automatically detecting the serial signal data rate Load capacity: support multipoint, each converter allows RS485 interface device to connect 32 Interface Protection: TVS tube protection, USB self-recovery protection Size: Approx. 76 x 18.5 x 16mm Package included: 5 x Serial Converter Module

Description: Trigger mode: High level 5V relay module Can be used for microcontroller development board module or home appliance control 5V - 12V TTL control signal Can control DC or AC signal, also 220V AC load Normally open / closed contact Power indicator Controlled lights bright when pull and not shine when disconnect Increase the transistor drive relay coils, control pins high impedance Control pins have pull down circuit to prevent malfunction of relay vacant Package included: 5 x 5V 1 channel relay module

Feature:   This is a real time clock (RTC) based on IC DS1307 that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost.  Use for data-logging, clock, timers and alarms.  The DS1307 can be easily connected to the Arduino, with I2C bus interface.   Package includes:   5 x Real Time Clock Module with battery

Description: WIFI NodeM ESP8266+32Mb, module is based on widely explored esp8266 System on Chip from Expressif. WIFI NodeM ESP8266+32Mb, compatible for NodeMCU board. We add extra memory size to 32Mb. This better, for make big project with big library. You not need to worry about size of memory. On board have USB-TTL serial converter CH340G, with Micro-USB socket. PowerIn for DC 4~9V, to pin VIN. Pin headers 2.54mm (0.1") 15 pins x 2 lines in set. Don't soldered. It combined features of WIFI accesspoint and station + microcontroller and uses simple LUA based programming language. WIFI NodeM ESP8266+32Mb, offer: Arduin0-like hardware IO. And can programming in Arduin0 IDE Event-driven API for network applicaitons 10 GPIOs D0-D10, PWM functionality, IIC and SPI communicaiton, 1-Wire and ADC A0 etc. all in one board Wifi networking (can be uses as access point and/or station, host a webserver), connect to internet to fetch or upload data. For developing can use install to breadboard. Package included: 5 x Wemos® NodeMCU V3 340G Lua WIFI Module