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TOPIC: Current Sensing - Best Approach Advice Needed

Current Sensing - Best Approach Advice Needed 3 years 11 months ago #17455

  • UriValle
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You must divide all the way down to around 3V, and if you want, use the zener as protection.
Look what is the logic high for the ESP and set the final voltage a little higer. You will need a 3/1 proportion between up and down resistors.
Only use a 10K Ohm up and 3.3KOhm low for 3V at the tap. You will find that the low resistor will disipate 2.7mW.

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Last Edit: 3 years 11 months ago by UriValle.
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