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- 3Pcs WeMos D1 R2 WiFi ESP8266 Development Board Compatible Arduino UNO Program By Arduino IDE
Description:
The D1 R2 is a mini wifi board based on ESP-8266EX.
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0)
1 analog input(3.3V max input)
A Micro USB connection
A power jack, 9-24V power input.
Compatible withArduino
Technical specs:
Package included:Microcontroller | ESP-8266EX |
Operating Voltage | 3.3V |
---|---|
Digital I/O Pins | 11 |
Analog Input Pins | 1 |
Clock Speed | 80MHz/160MHz |
FLash | 4M bytes |
Length | 68.6mm |
Width | 53.4mm |
Weight | 25g |
Pin | Function | ESP-8266 Pin |
---|---|---|
TX | TXD | TXD |
RX | RXD | RXD |
A0 | Analog input, max 3.3V input | A0 |
D0 | IO | GPIO16 |
D1 | IO, SCL | GPIO5 |
D2 | IO, SDA | GPIO4 |
D3 | IO,Pull-up | GPIO0 |
D4 | IO,pull-up, BUILTIN_LED | GPIO2 |
D5 | IO, SCK | GPIO14 |
D6 | IO, MISO | GPIO12 |
D7 | IO, MOSI | GPIO13 |
D8 | IO,pull-down, SS | GPIO15 |
G | Gound | GND |
5V | 5V | - |
3V3 | 3.3V | 3.3V |
RST | Reset | RST |
*All IO have interrupt/pwm/I2C/one-wire supported(except D0)
Programming:
The D1 R2 has a micro USB for auto programming.
Also you can programming it using OTA
Warnings:
All IO is work at 3.3V.
3 x WeMos D1 R2 WiFi ESP8266 Development Board Compatible Arduino UNO Program By Arduino IDE



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