All items tagged with ESP32 and CO2 meter (3)

| Want a do-it-yourself solution for taking indoor air quality measurements? This eCO2 Telgram Bot sends alerts to a Telegram account to keep...

| eCO2 monitor that indicates poor air quality via a TELEGRAM message, a local display and a web interface

| Ready for Elektor Lab Notes? This summer, the engineers and editors in the Elektor Lab remain hard at work on several engineering projects,...