SCD4x CO₂ sensors

I introduce the SCD4x CO₂ sensor modules and show you how to control them using the Sensirion library. I also check their reliability in comparison with a commercial measuring device.

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WiFi BBQ thermometer

I will show you how to build a WiFi BBQ thermometer with a temperature sensor, an ESP32 board and a few other components.

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Strain gauges

With strain gauges you can measure the strain and bending of components. I’ll show you how to use them with the HX711 or op amps.

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TVOC and eCO2 Sensors

Using the CCS811 and SGP30 as examples, I explain how metal oxide-based TVOC and eCO2 sensors work, how to drive them with libraries, and how reliable they are compared to NDIR CO2 sensors.

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