@winfried Hi. You can use the 3.7V battery in your picture to power the T-display, note the +, — signs.

@gandalf Hi. The USB port has no detection circuit design.

@yu Hi. The test range requires one transmission and one reception to perform the range test, and care should be taken to choose an open and unobstructed place. The sender can be placed in a high place if allowed.

@jezerca said in 10000 mAh Li-Po battery with TTGO T-Call&PMU SIM800L ?:

Hi all,
Expect the long charging time, would there any problem to use such kind of battery? Does the AXP192 board support it?

Hi. You can use this 3.7V battery, the default charging current is 500ma, you can modify it by programming.

@destroyedlolo Great idea, we actually already have a similar product. Such as T-SIM7000 series.

Only the welding port of the BME280 sensor is reserved. The default is without BME280 sensor.

@scheeri about 200ma

@scheeri It can be connected to 5v, but after connecting to 5v, you cannot plug in USB at the same time.

@erongd Cool .

@fdaher