Kitchen air quality meter
I want to build an air quality meter on an ESP32 with an MQ-135 sensor and a 0.96 inch OLED that shows the reading with a green, amber or red LED.
Parts
ESP32-DEVKITC Development Board In stock
MQ-135 Air Quality Gas Sensor Module In stock
SSD1306 0.96 inch 128x64 OLED Display Module In stock
5mm 940nm Infrared LED In stock- 840pc Breadboard Jumper Wire Kit In stock
400-point solderless breadboard In stock
USB A to Micro B Cable 1m In stock
120 Resistors 1/4W Carbon Film Assortment Kit In stock
Pins, wiring and code
The pin table, the wiring steps and the code for this build are in Soldr. Start this build on Soldr - you can change it before you buy.