<![CDATA[Power on and off with an external switch when panel mounted]]>Hi Guys,
I would like to panel mount a couple of the M5Stacks in an instrument cluster. I am trying to figure out how to power these on and off when I don't have access to the power button when it is behind the panel. I can run a usb cable to small UPS back-up battery (actually for a raspberry pi) and this feeds power to the M5Stacks. As soon as I turn on the UPS power switch, all is good that the M5's power on, but I have no way to turn them off. Is there a way to mount an external switch on the panel that will turn the M5's on and off without hacking into the mounted push-buttons?

Also, just to add more info, the current buttons are used like this: The middle button selects the different sensor readings from the engine and the left and right buttons are used to change the brightness of the screen.

Cheers
John

]]>https://community.m5stack.com/topic/2187/power-on-and-off-with-an-external-switch-when-panel-mountedRSS for NodeFri, 06 Mar 2026 00:07:46 GMTWed, 05 Aug 2020 00:09:46 GMT60<![CDATA[Reply to Power on and off with an external switch when panel mounted on Wed, 05 Aug 2020 12:35:05 GMT]]>Thanks for the info. Solves the issue. So looking at the schematic I would connect to pin 28 for 5V and pin 1,3 or 5 for GND.

Cheers.

]]>https://community.m5stack.com/post/9596https://community.m5stack.com/post/9596Wed, 05 Aug 2020 12:35:05 GMT<![CDATA[Reply to Power on and off with an external switch when panel mounted on Wed, 05 Aug 2020 04:50:38 GMT]]>feed power to the bus connection inside the m5stack (2x15 pin connection) as long as no battery is connected then that should work as you need.

]]>https://community.m5stack.com/post/9591https://community.m5stack.com/post/9591Wed, 05 Aug 2020 04:50:38 GMT