Using Dead Batteries to Test for Dead Batteries -- Episode 571

Dead battery? That's a matter of perspective! Instead of recycling coin cell batteries when their time is due, I will put them to good use and show you a secret feature of a Raspberry Pi Pico - and what sets it apart from other microcontrollers. Let's use the dead batteries to check for dead batteries, so I never have to doubt the battery again! I'll end up with a nifty box to keep my batteries organised, tested, and ready to use!

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Code and 3D Models

Episode 571 Resources

Bill of Materials

Product Name	Manufacturer	Quantity	Buy Kit
Raspberry Pi Pico	RASPBERRY PI	1	Buy Now
0.96" I2C Display	MIDAS	1	Buy Now
10k resistor	MULTICOMP PRO	1	Buy Now
IN4007 diode	NTE ELECTRONICS	1	Buy Now
CR2032 battery holder	MULTICOMP PRO	1	Buy Now
Switch	OMRON	1	Buy Now

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dougw over 3 years ago

That is wild - I like it. It would be interesting to expand it to be able to test any battery in any slot without pulling them out.
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dougw over 3 years ago

That is wild - I like it. It would be interesting to expand it to be able to test any battery in any slot without pulling them out.
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notenoughtech over 3 years ago in reply to dougw

I've tested it with 2450 2032 and 1220 coin cell batteries as the insert lets me store these inside.

Adding probes to each storage cell could be interesting however interfacing this would be a challenge for sure.
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