Port function button board

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Description: 1, WiFi using industrial-grade chips ESP8266, modules for the ESP-13 with metal shield, anti-jamming; 2. Standard pin-compatible Arduino Uno, Mega2560 and other control board, Arduino UNO connection with the use of a voltage converter chip, so 3.3V and 5V are compatible; 3. Serial port DIP switch with dual control, so the expansion board can be used alone as an Arduino Uno expansion boards, it can also be used as ESP8266 expansion board use; 4, Real serial WiFi, Arduino program without any configuration; 5, Based on WiFi Web Server configuration parameters and serial port parameters; 6, Can be used as an independent ESP8266 development board, download the official AT commands firmware, NodeMCU open source firmware; 7, can be used as stand-alone expansion board Arduino Uno use, pin all leads. More information: User Manual: https://fineshang.gitbooks.io/esp8266-based-serial-wifi-shield-for-arduino-user/content/ Technical Specifications: DC 3.3V-5V 1, Wireless 802.11 b / g / n standards; 2, Support for STA / AP two modes of operation; 3, Built-in TCP / IP protocol stack, you can configure a socket; 4, Supports standard TCP / UDP Server and Client; 5, The serial port baud rate support: 1200 / 2400 / 4800 / 9600 / 19200 / 38400 / 57600 / 74800 / 115200 bps; 6, Serial data bits: 5 / 6 / 7 / 8 bits; 7, Serial Parity: None; 8, Serial port stop bits: 1/2 bit; 9, The standard Arduino UNO, Mega pitch; 10, Leads out Arduino Pin 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13; 11, Leads out ESP8266 GPIO 0 / 2 / 4 / 5 / 9 / 10 / 12 / 13 / 14 / 15 / 16 / ADC / EN / UART TX / UART RX; 12, RESET reset; 13, KEY multiplex configuration function keys; 14, Two DIP switches enable switching Arduino and ESP8266 serial port expansion; 15, WiFi current: continuous transmission: ≈70mA (200mA MAX), Standby: 16, Wireless transmission rate: 110-460800bps; 17, The working temperature: -40 ￢ﾄﾃ ~ + 125 ￢ﾄﾃ Package included: 3 x ESP8266 Web Server Port WiFi Expansion Board ESP-13 Configuration Mode: 3Pcs ESP8266 Web Server Port WiFi Expansion Board ESP-13 Compatible With Arduino 3Pcs ESP8266 Web Server Port WiFi Expansion Board ESP-13 Compatible With Arduino 3Pcs ESP8266 Web Server Port WiFi Expansion Board ESP-13 Compatible With Arduino

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Description: This module is a multichannel current signal generator that generates 4 channels 4~20mA current signal. The module is simple to use and input data by keystroke operation, and the output signal is updated immediately. Features: Use 12864 LCD display Voltage: 15-24V Active output current 0~20mA. Display resolution 0.01mA and control accuracy 0.1mA Polarity protection of input voltage Can analog transmitter output Compatible for signal generator, valve regulator, and instrument calibration Specifications: Output current: 4~20mA Resolution: 0.01mA Control accuracy: 0.1mA Application: signal generator, valve regulator, and instrument calibration Size: 12*9*2cm / 4.72*3.54*0.19inch(length*width*height) Weight: 75g Interface(power interface) description: CN1 "+": represent the positive pole of the input power supply CN1 "-": represent the negative pole of the input power supply(GND) CN1 "OUT1": represent channel 1 transmit current output CN1 "OUT2": represent channel 2 transmit current output CN1 "OUT3": represent channel 3 transmit current output CN1 "OUT4": represent channel 4 transmit current output CN1 "G": represent common end GND Button description: Function button K1: the up arrow key is used to select the setting channel Function button K5: the down arrow key is used to select the setting channel Function button K2: reduce 0.01 slowly. Hold down 1S reduce 0.1 Function button K3: increase 0.01 slowly. Hold down 1S increase 0.1 Function button K6: actual value or percentage selection key Function button K8: clear key Using methods & steps: Output current OUT1 setting: press K1 or K5 Key to switch to OUT1 Setup interface. Press K2 or K3, output current value increases 0.01 MA step by step. Hold down K2 or K3, output current value increases 0.01MA step by step. Output current OUT2 setting: press K1 or K5 Key to switch to OUT2 Setup interface. Press K2 or K3, output current value increases 0.01 MA step by step. Hold down K2 or K3, output current value increases 0.01MA step by step. Output current OUT3 setting: press K1 or K5 Key to switch to OUT3 Setup interface. Press K2 or K3, output current value increases 0.01 MA step by step. Hold down K2 or K3, output current value increases 0.01MA step by step. Output current OUT4 setting: press K1 or K5 Key to switch to OUT4 Setup interface. Press K2 or K3, output current value increases 0.01 MA step by step. Hold down K2 or K3 output, current value increases 0.01MA step by step. Package included: 1 X Current signal generator module board 4 Channels 4-20mA Current Signal Generator Module Board With 12864 Digital LCD Display 4 Channels 4-20mA Current Signal Generator Module Board With 12864 Digital LCD Display 4 Channels 4-20mA Current Signal Generator Module Board With 12864 Digital LCD Display

Multifunction Expansion Board DHT11 LM35 Temperature Humidity For Arduino UNO Function: 2-way button module 2-way LED module Full Color LED Module IR receiver module Brightness sensor module LM35D temperature sensor module Passive buzzer module Rotary potentiometer module DHT11 temperature and humidity sensor module One I2C interface (A4 SDA, A5 SCL) One TTL serial port Two channel digital ports (D7, D8) One channel analog port (A3) Reset button Feature: Fully compatible with Arduino UNO R3 interfaces Providing Arduino beginners basic experimental module A board integrates various modules function No welding, no connection, you can download the program directly to complete the experiment Provide all the module code library files, all tested and can be used directly Set aside expansion port, you can complete other modules experiment Package included: 1 x Multifunction Expansion Board

Feature: Size: 6.5 x 1.4cm Support Win10, Win8, Win7, VISTA, WinXp, Win2K, 32-bit, 64-bit system and WinCE, Linux, for Mac system Power output: Support 5V / 500mA, 3.3V / 100mA power output Operation method: Switch the button to realize USB, TTL, RS485 and RS232 function transformation Indicators: Connect, receive, send light Communication: The maximum baud rate is up to 2Mbps Circuit board: CP2012 chip Module interface: The module has serial port TTL (VCC, GND level, TX, RX interface), serial port RS232 (VCC, GND level, TX, RX interface), serial RS485 of the A, B interface. Driver download: Click to open Package includes: 5 x USB to RS485 RS232 TTL Serial Port Module

ARM Cortex-M0 STM32F051C8T6 STM32 Core Board Minimum Development Board Description: STM32F051C8 core board carry a STM32F051C8 chip. The most basic circuit board MCU, including power supply module, reset circuit, download circuit, etc. Lead to all the I/O port resources. Row needle spacing of 2.54 mm, small size, suitable for access to the user's system.Characteristics:MCU: STM32F051C8T6Kernel: Cortex- M0 32-bitStorage Resource: 64K Flash, 8KB SRAMCircumscribed Crystal Oscillator: 8MHzDebugging Download Interface: SWDPower supply of board: Mini-USB DC-5V.Board size: 33mm*53mmFeature:(1) The SWD interface, download and debug support.(2) The UART interface, download and communications support.(3) The on-board ASM1117-3.3 V voltage regulator chip;(4) The MCU pin interface, which leads to the VCC, GND and all I/O, convenient connection with various modules.(5)The power indicator light (red LED).(6)The green LED to light up the low level I/O (PC13), can be used for testing;(7) Reset button Instructions: This development carry a STM32F051C8T6 chip, all the pins of chip leads to convenient for the user to expand other modules. USB mini port and reset button. A SWD interface convenient for the user to download and simulation. Package included: 1 x ARM Cortex-M0 STM32F051C8T6 STM32 Core Board

GSM/GPRS Shield Expansion Board EFCom Wireless Module With Antenna Description: The GPRS Shield-EFCom expansion board is a serial GSM / GPRS wireless module. Arduino enthusiasts to quickly learn a GSM / GPRS mobile phone development, and can be applied to wireless development projects to the class, but also suitable for remote control development, such as wireless meter reading, smart appliances, ultra-long-range control.   EFCom compatible with all the Freaduino and standards the Arduin development board. EFCom is a 4-band GPRS / GSM module supports four standard band 850/900/1800/1900MHz, send SMS messages, phone calls, faxes, etc. all GPRS handsets have features. EFCom allows your very fast phone development process and the wireless development.   EFCom SIM900 is a patch type GSM / GPRS integrated single-chip, ARM926EJ-S core, build enthusiasts and learn to use the smallest integrated development environment.   The EFCom using AT commands through UART serial configuration settings only need to extend the board into Freaduino board, you will be able to easily control via AT commands EFCom make calls, send text messages... addition EFCom support LCD5110 display (default hair Bluetooth backlight, is inserted in EFCom effect diagram below) and serial keypad keyboard input.   The board set the hardware boot the Button Software boot (D10), hardware RestButton, software Rest (D9) allows use and arduino spiritual and match to meet various types of both hard boot or soft boot or the hard reset or soft restart DIY needs. The two jump take to D0-D3, you are excelent to choose EFCom Arduino communication: software serial port (jumper cap to D2, D3) or hardware serial port (D0, D1).   EFCom three operating modes: Short Message Service SMS service mode Audio music mode GPRS mode Features: Fully compatible the Arduino and Mega2560 development board series Serial communication, the freedom to choose hardware serial port (D0/D1) or software serial communication (D2/D3) and motherboard SIM900, all the IC set aside not only the UART, DEBUG mouth, all GPIO port and KEY PANEL interface Board super capacitor to ensure the RTC work Support both hardware and software switch machines, support for hardware and software restart 4 band 850/900/1800/1900 MHz   Specification: The GPRS Shield power supply 5V GPRS multi-slot class 10/8 GPRS mobile station class B Compliant to GSM phase 2/2 +  - Class 4 (2 W@850/900 MHz)  - Class 1 (1 W@1800/1900MHz) Weight: 3.4g Control via AT commands (GSM 07.07, 07.05 and SIMCOM enhanced AT Commands) SIM application toolkit Supply voltage range: 3.1 - 4.8V Low power consumption: 1.5mA (sleep mode) Operation temperature: -40 ° C to +85 ° C Note: Plug Freaduino / Arduino Main Board, in connection we 9V DC AC adapter. The reason is the need EFCom boot current and maximum peak current 2A, but the USB port is unable to provide such a large current, so must an external power supply equipment.Your SIM card is not lockedBest EFCom communication baud rate of 19200 bps 8-N-1(EFCom default automatic pairing baud rate) Package included: 1 x EFCom wireless module 1 x Quad-Band antenna IO definition: Dimension:   PCB:

Overview: Robot: bit is a functionable expansion board for Micro: bit, which supports makecode graphical programming and Python programming. It is different from the general expansion board on the market, not just IO adapter board. This expansion board also integrates other function chips, but also has other extension function. Features: 1. Plug and play, compatiable with Micro:bit 2. With Lego mounting holes, compatiable with KittenBot 3. 4 full-color RGB lights 4. 8 way servo control interface (external power supply supports up to 8-way, bulit-in board battery supports up to 2-way) 5. 4-way DC motor / 2-way 28BYJ stepper motor 6. With miniature buzzer 7. P0-P2IO port 3PIN transfer 8. With 18650 battery port 9. With power management chip and charging circuit 10. With power and battery indicator Specifications: Size: 7.8 x 5.7 x 5.3cm Net weight: 32.8g Thickness of PCB board: 1.6mm Diameter of small hole: 3.0mm Diameter of big hole: 4.8mm Voltage of battery: 3.7V USB input voltage: 5V Software: 1. Robot:bit 2. Micro:bit Package Included: 1x Robot:bit expension board (do not include 18650 battery and microbit) 1x Safty guide

Feature: The module has 12 push buttons. You can make usual keypuds for enter numbers, symbols, or navigate and selections in the program. There are pull-up resistors of different values for each button. This makes it possible to connect all the 12 keys to taking only one analog port of the microcontroller. The button consists of two parts: a cap, which can be applied to any character, and a transparent cover which can prevent blurring of the text and add light. Connection: After connecting power to the module and pressing at least one key contact at "OUT" will stress the appropriate level. Conformity stresses the buttons pressed, you can find out how on the board and in the table below (values are valid out when powered from 5v). Package includes: 1 x Button Keypad 3x4 module

SIM808 GSM GPRS GPS BT Development Board Module For Arduino Description: SIM808 a new generation of GSM, GPRS, GPS, bluetooth (optional) SIM808 GSM GPRS module is a four frequency for the castle hole encapsulation. Its performance is stable, compact appearance, high cost performance, which can meet the various needs of customers. SIM808: SIM808 working frequency for GSM/GPRS / 1800/1900 850/900 MHZ, can realize low-power transmission of voice, SMS and data information. Features: The four frequency MHZ 850/900/850/900 SMS FTP/HTTP, embedded TCP/UDP protocol DTMF detection, bluetooth 3.0 (optional), USB interface Arduino SIM808 shields hardware: Power interface support 5-20V voltage input, pay attention to the voltage of 5-9V, can provide not less than 2 a power adapter current. 1. Can choose to use through the jumper cap hardware serial port (D0 D1) or software serial port (D7 D8). 2. Support the MICRO SIMCARD. 3. Support four headphone jack (I type). 4. Update SIM800C firmware support via USB or serial port. 5. Can be upgraded to a bluetooth version of the development board. 6. On board TVS diode, SIM card protection IC, two 100 uf tantalum capacitors and so on a variety of ways to make the stable development board performance. 7. Support the lithium battery (3.6-4.2 V) For TTL level serial communication interface. Fully compatible with the Arduino and compatible with other 5 V, 3.3 V, 2.85 V system. Arduino SIM808 shields software: By TTL level a serial port communication with external systems, the default is communicated with 5 v system directly. Communicated 3.3 V and 2.85 V, it needs to do a bit of hardware processing. Communication interface (command) for the AT command, which is control module function to realize the AT command, such as: control module to make calls using ATD * * * * * * *; (* phone number) for each other. Package included: 1 x SIM808 GSM GPRS GPS BT Development Board Module For Arduino

Overview: LC USB to ESP8266 module can ESP8266 wireless module PC via a serial port connection, Convenient to debugging ESP8266 WIFI module. The function and characteristics: Using CH340 chips, stable performance, good compatibility, basic support all Windows system; The board with 1000uF solid-state capacitors, ensure the supply of electric current and prevent ESP8266 module from no response. The board size: 34.5*17.2mm. The board function description: ESP8266 wireless WIFI module and USB interface in the same direction for docking, as shown below, Insert the module into the computer and use the serial port debugging assistant software test ESP8266 module. Package included: 1 x USB To ESP8266 WIFI Module

Note: This is a DIY kit, you need to assemble it, no instruction supply Specification:   Voltage: USB female or pin header power supply, the supply voltage and the same chip voltage Crystal: 8M PCB board size: 7.4cm * 3.4cm   Feature:   1. Classic ATmega8 / ATMEGA48 the smallest system 2. 23 IO leads to facilitate expansion 3. Standard ISP download interface (board does not need a separate power supply, support ISP download interface power supply), to facilitate program download and debugging; 4. Support chips: ATMEGA8, ATMEGA48 and pin-compatible chip 5. With a self-locking switch, you can flexibly control the system USB input 6. Flexible and diverse power supply: available ISP download port power supply, the standard USB interface can be used for power supply, can also be used for power pin row. 7. External expansion 3 channel VCC, GND 8. Reset: Power-on reset and button reset 9. Expansion 1 channel led lights, easy to debug use   Package includes:   1 x PCB board 1 x 28P locking seat 1 x USB 1 x DC3-10 horns seat 1 x 8 * 8 self-locking switch 1 x 40P pin header 1 x 8M crystal 2 x 22P ceramic capacitors 2 x 104 ceramic capacitors 2 x 3MM red LED  1 x 6 * 6 button 2 x 4.7K resistor 1 x 10K resistor Test, for reference only:

Feature: Support frequency range: 2.4~2.4835GHz Support STA/AP/AP+STA function Support AirKiss - key distribution network Support TCP, UDP, HTTP, DHCP, DNS, NTP, ICMP, etc. The serial port supports RTS/CTS, and the baud rate ranges from 1200bps to 2Mbps Support serial port transparent transmission function Support WIFI remote upgrade function AT command compatible with ESP8266 (UART1 interface) Tips: It is recommended that beginners first use the USB to TTL module test, familiar with the module AT command and logic relationship and then use the microcontroller to develop. Materials required: W1FI module, USB to TTL module, DuPont line Instructions: 1. Connect the three pins of the WIFI module (GND, TX1, RX1) to the USB to TTL module. 2. Access the computer, open the serial port debugging assistant, send the AT command test Project Parameter Support WiFi standard IEEE802.11 b/g/n RF system impedance 50Ω SWR Frequency Range 2.4￣ﾀﾜ2.4835 GHz Receiving sensitivity 20MHz MCS7@-71dBm 40MHz MCS7@-68dBm 54Mbps@-73dBm 11Mbps@-86dBm 1Mbps@-95dBm Physical layer data rate 802.11n MCS 0-7 150Mbps Modulation DSSS, OFDM, DBPSK, DQPSK, CCK, QAM16/64 Output Power IEEE802.11b, DSSS 1Mbps, POUT = +17dBm; IEEE802.11g, OFDM 54Mbps, POUT = +10dBm; IEEE802.11n, OFDM MCS7, POUT = +10dBm; Interface Type UART, SPI, GPIO Interface rate 2Mbps@UART (Max) 50Mbps@SPI (Max) Operating Voltage 3.3V Working current 110mA Network Type STA/AP/AP+STA Encryption WPA-PSK/WPA2-PSK Network protocol TCP/UDP/ARP/ICMP/DHCP/DNS/HTTP Interface Protocol AT+Instruction Set Package includes: 1 x WiFi Module

Mega2560 R3 ATMEGA2560-16AU + CH340 Board With USB For Arduino Feature: This board is completely solve the traditional 2560 board is not compatible with win7 and win8 system instability. Retains the main chip ATMEGA2560-16AU, replacing the usb chip-16U2, in most applications, these USB interface chips only as a serial "brush "and communication. With professional usb chip, not only can reduce the cost, but also can meet applications. Note: This version is optimized in the original version, mainly designed for customer need high product quality and function, not only consistent and compatible with the original, but also easy to use. This version is not suitable for 3D printer, if you need this function please buy SKU074519 (Click here) Method of use: 1. Download the arduino IDE Download address: http://arduino.cc/en/Main/Software (copy open) 2. Download the USB chip driver Download address: http://www.wch-ic.com/download/list.asp? Id = 126 3. Plug in the NANO development board, the driver is automatically installed 4. Select NANO in die 5. Select the COM port, this can query in "my computer" Package included: 1 x MEGA2560 R3 Board

Features: - Compatible with bluetooth V3.0/V4.0/V4.1 - Support FLAC/WAV/WMA/MP3 format audio - Support breakout function to second - With FM radio function - With remote control receiving function - Small size, easy to carry - Support bluetooth phone call function - Support voice promption - With AUX input port - Support TF card/ U flash drive - Size: 50 x 40 mm Package included: 1 x Bluetooth Audio Receiver Board 1 x Remote Controller 1 x AUX Cable

Functional Overview CPU Allwinner V3S, ARM Cortex-A7, up to 1.2GHz Memory and storage Integrated 64MB DDR2 Reserved SOP8 SPI Flash pad (customizable patch 8~32MB SPI Nor Flash, 128MB Nand Flash) Onboard half-slot TF card holder, can be started by TF display Universal 40P RGB LCD FPC Socket Can be directly inserted into the common 40P 4.3/5/7 inch screen (onboard backlight driver), through the adapter board can be inserted 50P 7/9 inch screen Support common 272x480, 480x800, 1024x600 and other resolutions On-board resistive touch screen chip supporting resistive screen Onboard RGB LED Communication Interface SDIO x2, can be used with the SDIO WiFi+BT module SPI x1, I2C x2, UART x3 100M Ether x1 (with EPHY) OTG USB x1 MIPI CSI x1 Other interface PWM x2 LRADC x1 Speakerx2 + Mic x1 Electrical characteristics Micro USB 5V power supply; 2.54mm pin 3.3V~5V power supply; 1.27mm stamp hole power supply Output 3.3V and 3.0V (AVCC), optional input RTC voltage 1GHz linux no-load running current 90~100mA, full load running current ~180mA Storage temperature -40~125°C, operating temperature -20~70°C Software function: Support linux 3.4 bsp kernel, linux 4.16 mainline kernel Support Qt, python and other common linux applications Size and weight Core board size 25.4x45.0mm Development board size 47.0x47.0mm Core board weight 5.0±0.1g Development board weight 14.5±0.5g Precautions start up Zeros requires the card to start (or solder SPI flash), only plug in the USB without any phenomenon System debug serial port UART0, specific position reference pin diagram USB interface OTG usb, power and communication Bottom debugging It is recommended to use usb to serial port small board to connect "U0T R" and "G 5V" Operating temperature -20~85??/span> Running current Running Linux no-load current is about 100mA, full load current is about 150~180mA, and LCD current is about 200~300mA. No card power-on current is about 50~60mA Reference info. (Can click for more detail): 1. Document 2. Github 3. BBS 4. Wiki 5. E-mail: support@sipeed.com Package Included: 1x Lichee pi board 1x Plug 2x Pins