Electronics Projects
OLED Weather Station
Show temperature, humidity and pressure on a small OLED screen.
Overview
A DHT22 reads temperature and humidity, a BMP280 reads pressure, and the OLED displays all three.
Build Steps
Wire the I2C devices
BMP280 and OLED share SDA and SCL at different addresses.
Wire the DHT22
Connect its data pin with a 10 kΩ pull-up if the module lacks one.
Read and display
Read every few seconds and draw the values on the OLED.
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