WeMos D1 R2 V2.1.0 WiFi uno based ESP8266 for arduino nodemcu Compatible
Development platform based on ESP8266 chip
What's new about V2.1.0
- Use BRT (Bias Resistor Transistor), easier into flash mode.
- Optimize the circuit, the system is more stable.
About D1 R2
- based on the ESP-8266EX.
- Arduino Compatible, you can use it on Arduino IDE.
- NodeMcu Compatible
- 11 Digital I/O pins
- 1 Analog Input pin
- OTA -- Wireless Upload(Program)
- On board switching power supply -- Max 24V input, 5V 1A output
Description: An Arduino UNO Compatible wifi board based on ESP8266EX.
Features:
-
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except for D0)
-
1 analog input(3.2V max input)
-
Micro USB connection
-
Power jack, 9-24V power input.
-
Compatible with Arduino
-
Compatible with nodemcu
Microcontroller | ESP-8266EX |
Operating Voltage | 3.3V |
Digital I/O Pins | 11 |
Analog Input Pins | 1(Max input: 3.2V) |
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, 10k Pull-up | GPIO0 |
D4 | IO, 10k Pull-up, BUILTIN_LED | GPIO2 |
D5 | IO, SCK | GPIO14 |
D6 | IO, MISO | GPIO12 |
D7 | IO, MOSI | GPIO13 |
D8 | IO, 10k Pull-down, SS | GPIO15 |
G | Ground | GND |
5V | 5V | - |
3V3 | 3.3V | 3.3V |
RST | Reset | RST |