LOLIN boards
1 LOLIN development board — pinouts, specs, and datasheets.
Wemos/LOLIN D1 Mini
board
LOLIN · ESP8266 (ESP-12F)
Compact ESP8266 dev board with USB-serial. Silkscreen Dx labels map to GPIOs (D1=GPIO5, D2=GPIO4, etc.). One ADC (A0). 3.3V logic.