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.

Read More

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.

Read More

MH-Z14 and MH-Z19 CO2 Sensors

With CO2 sensors of the MH-Z14 and MH-Z19 series you can monitor the indoor air quality. I show how you how to control the sensors and I check their accuracy.

Read More