Hi guys

good news. UIFlow M5Core2 firmware v1.10.0.1 finally allows to enable / disable the boot beep via the Configuration menu in the brand new M5Burner v3.0.

Thanks
Felix

Hello M5Stack team

I've been trying out M5Burner Linux x64 v3.0 and while it detects ttyUSB0 devices just fine it fails to detect ttyACM0 devices like the latest M5Stack base v2.61.

Adding a temporarily sym link like below fixes the issue for me. This leads me to think that M5Burner v3.0 most likely only looks for ttyU* devices.

sudo ln -s /dev/ttyACM0 /dev/ttyUSB0

Thanks
Felix

Hi guys

@macsbug : thank you for presenting the World Time API as alternative solution.

@Stoni99 : never mind - I am glad to read you have working code now.

Thanks
Felix

Hello @Stoni99

your code runs fine on my M5Stack.

• what happens if you comment out waitForSync()?
• what is the log output of the crash?

Thanks
Felix

Hello @Stoni99

are you sure? From the description Rob developed ezTime together with M5ez for M5Stack.

What exactly doesn't work for you? Care to share your code?

Thanks
Felix

Hello @HansDia95

using UIFlow firmware 1.9.8 on my M5Tough I can simply hide a button and after that it no longer is touchable until I make it show again.

Have you tried Set touch_button_X hide block?

Care to share your UIFlow code?

Thanks
Felix

Hello @teastain

yes, it looks like M5Stack engineers only provided a function to set the mode of all pins at together. Shouldn't be too hard to make a function which allows to set the mode of each pin individually though.

RGB mode: yes, that is what I found as well. Only one LED per pin.

Thanks
Felix

Hello @RoToR

one difference between the RS485/TTL unit and the COMMU is that the RS485 circuit in the former is powered by 5 V whereas the latter is powered by 3.3 V. (Not sure why M5Stack engineers decided to use 3.3 V in the COMMU module.)

I've done my measurements with the RS485 board that was included with the LAN module. When I power it with 3.3 V, with 120 Ohm resistor and not sending anything I get about 1.5 V between A and B. When I power it with 5 V, same conditions, I get about 2.5 V between A and B.

Thanks
Felix

Hello @kazokutchi

From below comment I assume M5Stack engineers decided to not include the SetChargerCurrent() function for M5StickCPlus.

// Not recommend to set charge current > 100mA, since Battery is only 80mAh.
// more then 1C charge-rate may shorten battery life-span.

That said, have you tired to only copy the function by itself into the corresponding AXP192.cpp file of the M5StickCPlus library?

Thanks
Felix

Hello @RoToR

when I send something from the M5Stack and measure between A and B (w/o anything else connected) I get an amplitude of about 1.5 V.

Have you tried with a 120 Ohm resistor at each end?

Have you tried w/o the ground wire?

Thanks
Felix