Carbon Dioxide Monitor

Hardware:

• SCD40 Sensirion sensor.
• Raspberry Pico. AliExpress knockoff works too.
• 128x64 SCD1306 OLED display.
• nRF24L01+PA+LNA radio module.
• Other generic components (buttons, LEDs, etc)

Software:

• Pico C SDK.
• RF24(-Network/-Mesh) libraries.
• u8g2 OLED display driver.

Logo credits (scenery.png):

• https://www.moonbench.xyz/projects/1-bit-oled-art-gallery/