Reference — ESP8266 Arduino Core 3.1.2-6-ga76ef290 documentation
WEMOS D1 R2:D0 & A0 as output? (SOLVED) - Project Guidance - Arduino Forum
ESP8266 ADC - Read Analog Values with Arduino IDE, MicroPython and Lua | Random Nerd Tutorials
arduino uno - ESP8266 not working. No response - Arduino Stack Exchange
NodeMCU ESP8266 — ESPHome
Arduino-er: NodeMCU to read analog input, A0.
ESP32/ESP8266 Analog Readings with MicroPython | Random Nerd Tutorials
Nodemcu Nodemcu Adc With Arduino Ide | Nodemcu
Wemos D1 WiFi-ESP8266 with LDR(light-dependent resistor) and MQTT Server | microdigisoft.com
How to Use Wired Communication with an ESP8266
How to connect a photoresistor or light dependant resistor to an ESP8266-12E | Blog » childs.be
ESP8266 ADC Tutorial | NodeMCU ADC for Analog Input Arduino IDE
ESP8266 ADC - Read Analog Values with Arduino IDE, MicroPython and Lua | Random Nerd Tutorials
ESP8266 WeMos D1 Mini Tutorial
Internet of Home Things » 8 ESP8266 analog inputs for 22 cents
Nodemcu Nodemcu Adc With Arduino Ide | Nodemcu
ESP8266 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials
ESP8266 analog read - How-To - The Internet of Thinger
