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)
Arduino mega interrupt problem. Code or wiring? [SOLVED] - Programming Questions - Arduino Forum
esp8266_gpio_pin_allocations [ESP8266 Support WIKI]