Correctly Measuring Mains Voltage, Current, and Power for Home Automation

In video #321, we looked at DC current sensors. Today we will look at how to measure AC mains currents, which is much more difficult. And more dangerous because it can kill you if you do not pay attention. And, because measuring AC power is useful in home automation, we will also look at how to measure voltage and calculate power. To measure correctly, we have to learn about phase shifts and power factor. And I will tell you the essential rule to live long around high voltages.
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Links:
Mains checker: https://s.click.aliexpress.com/e/_dZfAuUz
HCPL3700: https://s.click.aliexpress.com/e/_dZxcawp
ZMPT101B: https://s.click.aliexpress.com/e/_dX7RklJ
Dimmer: https://s.click.aliexpress.com/e/_dWsgwTb
Current Transformer: https://s.click.aliexpress.com/e/_dZi9TV7
UT204A: https://s.click.aliexpress.com/e/_dVA4QJF or https://amzn.to/2Pb3eRb
PZEM-004T: https://s.click.aliexpress.com/e/_dZ2OohB or https://amzn.to/2P76TiS
Sonoff POWR2: https://s.click.aliexpress.com/e/_dW0Ny09 or https://amzn.to/3hQUHzj
Shelly EM and 3EM: https://shelly.cloud/products/shelly-em-smart-home-automation-device/
Power Monitor: https://s.click.aliexpress.com/e/_dTSlKMz
Lots of interesting stuff: https://innovatorsguru.com/zmct103c/
Dimmer Library: https://github.com/RobotDynOfficial/RBDDimmer
Library for ZMPT101B: https://github.com/MartinStokroos/TrueRMS

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Видео Correctly Measuring Mains Voltage, Current, and Power for Home Automation канала Andreas Spiess