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SNCT D1 Mini ESP8266 ESP-12 ESP-12F 4M Bytes CH340G CH340 V2 USB WeMos D1 Mini Compatible WiFi Development Board NodeMCU Lua IOT Board 3.3V with Pins (Pack of 5): Buy Online at
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ESP8866 D1 mini, can only receive serial on pin 13 (D7), not pin 3 (RX) - Microcontrollers - Arduino Forum
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