Using a LDR Light Sensor with ESP8266 NodeMCU V3 on Home Assistant
Connect LDR Light Sensor to ESP8266 NodeMCU with ADC Pin (Analog to Digital Converter)
![](https://www.elec-cafe.com/wp-content/uploads/2021/05/ESP8266-NodeMCU-V3-LDR-Light-Sensor.png)
Configuration with ESPHome on Home Assistant
esphome:
name: esp8266_nodemcu_v3
platform: ESP8266
board: nodemcuv2
# Wifi
wifi:
ssid: "your_ssid"
password: "your_password"
fast_connect: true
manual_ip:
static_ip: 192.168.1.33
gateway: 192.168.1.1
subnet: 255.255.255.0
dns1: 192.168.1.1
# Enable logging
logger:
# Enable Home Assistant API
api:
ota:
# LDR Light Sensor
sensor:
- platform: adc
pin: A0
name: "ESP8266 NodeMCU V3 Brightness"
update_interval: 10s
filters:
- multiply: 3.3