Battery

[CanMark]

Hi,
I wonder do you know what battery should be connected to this board.
I have tried a 3.7v lipo but it does not appear to work.
Thanks,
Mark

[vvs551]

Battery is working but IP5306 key is off (
You can try to connect pin_5 of ip5306 connect to GND and battery power will start
But, unfortunately it will stop again in 1 minute ((

[CanMark]

So it should work off a 3.7v battery?

Are you suggesting that I connect the battery to a couple of pins on one of the chips on the board?

[who4you]

I have the same problem with the battery always turns off after 35 seconds. (Programming with arduino on platform.io). Does anyone have a clue?

[renebohne]

In order to solve this issue for my board, I connected (soldered wires) pin IO23 (of ESP32) to pin LED2 (of IP5306) and pin IO5 to pin LED1.

My IP5306 supports I2C, so I was able to add this code in my setup() or main() methods:
bool ok = setPowerBoostKeepOn(true);

and this is the function that I took from the M5stack project:
bool setPowerBoostKeepOn(bool en){
uint8_t data;
Wire.beginTransmission(IP5306_ADDR);
Wire.write(IP5306_REG_SYS_CTL0);
Wire.endTransmission();

if(Wire.requestFrom(IP5306_ADDR, 1))
{
    data = Wire.read();

    Wire.beginTransmission(IP5306_ADDR);
    Wire.write(IP5306_REG_SYS_CTL0);
    if (en) Wire.write(data |  BOOST_OUT_BIT); 
    else    Wire.write(data &(~BOOST_OUT_BIT));  
    Wire.endTransmission();
    return true;
}
return false;

}