Pinouts

Device Pins (Arduino)

Pin reference for many boards: https://randomnerdtutorials.com/esp8266-pinout-reference-gpios/.

See also "ESP8266_Pinout_Diagrams.pdf" below (borrowed from the tutorial site).

Note: LUA used a different pinout scheme that matched the NodeMCU board pin labels.  Arduino uses the GPIO pin numbers and you must map them to the correct board pins.

MppDevices reference GPIO pin numbers, not the NodeMCU D1-D8 pin labels!

MppDevice configuration settings:

Note: TX is pin 1, RX is pin 3 on all devices

note i: D4 conflicts with the blue LED for the DHT22/wemos shield

MppDevice pin mapping to board labels