3Pcs D1 R2 WiFi ESP8266 Development Board Compatible UNO Program
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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 with nodemcu
Digital I/O Pins:11
Analog Input Pins
A0:Analog input, max 3.3V input:A0
*All IO have interrupt/pwm/I2C/one-wire supported(except D0)
The D1 R2 has a micro USB for auto programming.
Also you can programming it using OTA
All IO is work at 3.3V.
1 x D1 R2 WiFi ESP8266 Development Board
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