Uploaded April 2020 | Updated September 2026, 2 weeks ago

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Measuring current is simple. Right? You just take a multimeter, connect it to the two cables, and read the value.
If you want to do the same with a Microcontroller like an Arduino or an ESP, things get a little more complicated. Let’s dig into it to see how it works! And which is the best sensor for our projects?

Sensors in the video:
MAX4080: https://s.click.aliexpress.com/e/_DkuBwx1
INA169: https://s.click.aliexpress.com/e/_dVM29Nk
INA219: https://s.click.aliexpress.com/e/_Dn0SeUx
INA3221 (order black module): https://s.click.aliexpress.com/e/_DlWzj1v
ACS712: https://s.click.aliexpress.com/e/_dS79KJU
ACS758: https://s.click.aliexpress.com/e/_d660NQm
WCS1800: https://s.click.aliexpress.com/e/_DdfHAv9

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