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Description:

Based on the ESP-8266EX.
Compatible, you can use it on 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

What’s new about V2.1.0

Use BRT (Bias Resistor Transistor), easier into flash mode.
Optimize the circuit, the system is more stable.

Package included:

1 x D1 R2 V2.1.0 WiFi Uno Based ESP8266 For Nodemcu Compatible