Are you still worried about how to maintain the 18650 lithium battery you bought? Here are the most complete 18650 lithium battery maintenance methods, let's learn about it together!
1. 18650 lithiu...
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In the 13.56Mhz reading and writing field, MCU checking the card through the ADC circuit is a common low-power approach. However, the disadvantage of this approach is that the MCU needs to continuousl...