I’m using EC200U-CN module with openCPU SDK and have following queries regd. power/charger :
- Can the module be powered reliably using Li-ion batt connected directly to VBAT (with recommended filters/capacitors) without any LDO/regulator ?
- As in the charge_demo.c, it gives charging state, charging current, etc. Does the module support internal battery charging via USB ?
- In same charge_demo.c, for battery detect feature, it is said to connect battery to ADC channel. What is the recommended way to do so.?
I’d connected battery +ve terminal to ADC0 with 1k series resistor, but it gives battery state as 0. Even the vtg readings are not accurate.