Computers crash if they do not have enough voltage. Li-Ion batteries could explode during charging if they were deeply discharged. How can we prevent such events? We need so-called voltage supervisors. Cheap parts with a big effect, which usually do their job in the dark. Let's tear them to the light and protect your ESP32 or Arduino from not booting correctly and your Raspberry from a crash. We will use KA75330, KA75450, and TPS3839 for our experiments.
I am a proud Patreon of GreatScott!, Electroboom, Electronoobs, EEVblog, and others.

Links:
KA75330: https://s.click.aliexpress.com/e/_dZi...
KA75450: https://s.click.aliexpress.com/e/_d8l...
TPS3839G33: https://s.click.aliexpress.com/e/_dV3...
Power Supply: http://bit.ly/2uG5mJR or https://s.click.aliexpress.com/e/_dUL...
ESP32 Breadboard friendly: https://s.click.aliexpress.com/e/_d6A...
Raspberry Pi4 2GB (price drop!): https://amzn.to/3aBSjZG

The links above usually are affiliate links which support the channel (no additional cost for you).
Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot
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