Showcasing a 4S 18650 current protection board

This is a board that I've made a while ago. It is a 4S 18650 lithium battery pack with current protection. It uses a 10 mOhm low-side sense resistor. The voltage drop is then amplified by an OP-AMP and directed to an ATtiny402 that then drives an NMOS to deliver the power
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#arduino #electronics #engineering #18650 #ATtiny #pcb

Видео Showcasing a 4S 18650 current protection board канала BurningElectronics