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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Wireless BBQ thermometer (433 MHz)
I will show you how to build a wireless 433 MHz BBQ thermometer with alert function and graphical display of the temperature curve.
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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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ICM-20948 9-Axis Sensor Part II
This is the second part of my article about the 9-axis sensor ICM-20948. I continue with the presentation of my associated library.
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ICM-20948 9-Axis Sensor Part I
I present the ICM-20948 9-axis sensor and my associated library. The ICM-20948 is the successor to the MPU-9250. This is Part 1.
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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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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.
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MPU9250 – 9-Axis Sensor Module – Part 2
This is part 2 of my article about the 9-axis sensor MPU9250 and my related library MPU9250_WE. I will explain how to measure angles and how to use interrupts, the cycle mode and FIFO.
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MPU9250 – 9-Axis Sensor Module – Part 1
The MPU9250 is an accelerometer, gyroscope, magnetometer and thermometer. I present its technical characteristics and give an introduction to my library.
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ADXL345 – The Universal Accelerometer – Part 2
In the second part of my article about the ADXL345 and my library I go into Activity/Inactivity, Single and Double Taps and FIFO.
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