Hello @KAYDE1

maybe checkout this example here?

To make it work I had to adapt the GPIO used for the LEDs:

//  buscfg.pin_data = 26;
  buscfg.pin_data = 25;

I also added a delay(1000); at the end of the loop().

Thanks
Felix

Hello @infraready

indeed on the pictures the back of both SE and Lite are marked SE - strange.

Anyways, have you tied to burn and run the M5CoreS3 demo firmware? This should give you a good indication about whether the camera works or not.

Please note: I do not have an M5CoreS3 Lite to test this myself.

Thanks
Felix

Hello @infraready

Re: 1. no, M5CoreS3 SE does not have a built-in camera. See comparison here.

Thanks
Felix

Hello @easytarget

FYI: I ran a test and after charging the RTC battery / supercap for a couple of minutes, setting a start time, then removing all other power sources and checking after about 7 hours later, the time in the RTC was still correct.

Thanks
Felix

Hello @sam_20

hmm, I don't think I understand you statement. Doesn't every electronic part that's faulty need to be swapped? What am I missing here?

Thanks
Felix

Hello guys

it is listed in the specifications here.

RTC Chip: RX8130CE (supports timed interrupt wake-up), RTC supercapacitor specification: 70000μF/3.3V, size Φ4.8×1.4mm

Edit: If I am not mistaken RTC battery charging is enabled with this line in M5Unified library.

Thanks
Felix

Hello @mpuz00

the battery connector powers everything, including RTC. But, yes, when the external battery is fully drained RTC time is lost as there is no built-in battery for the RTC.

You can find the schematics here.

Thanks
Felix

Hello @easytarget

for me your current implementation to turn off M5Tab5 actually only does a reset.

The power off pulse needs to pulse to turn off M5Tab5. See here.

I modified poweroff_now function in your library like below:

def poweroff_now(self):
        """Instant full power off. Be sure you want to use this!"""
#        self._e2.set_output(_PWROFF_PULSE_PIN, HIGH)
        for x in range(10):
            self._e2.set_output(_PWROFF_PULSE_PIN, LOW)
            sleep(0.05)
            self._e2.set_output(_PWROFF_PULSE_PIN, HIGH)
            sleep(0.05)

and now my M5Tab5 turns off.

Thanks
Felix

Hello @astro_m5

have you tried to flash UIFlow2.0 or CoreS3 UserDemo using M5Burner? Does that recover the backlight?

Thanks
Felix

Hello @frank_b

have you tired without COMMU module stacked?

Thanks
Felix