When measuring higher voltages (like a battery) with the ESP32 ADC, you typically use a voltage divider to scale down the voltage to a range the ADC can handle. A voltage divider uses two resistors ...

Other Parts Discussed in Thread: INA219, I want to charge a small LiPo battery of 3,7V. Can it be charged with the BQ51050B component? As I can see, the output voltage options are around 4,2V. 1 - How ...

We have an OTG USB design, and would like the board to be able to act as USB HOST even when powered only by 3.7V lithium battery. This means we need an IC to buck-up from 3.7V to 5V for USB VBUS power ...