<![CDATA[M5StickC Plus - detect power button momentary press?]]>I can't find a way to detect a momentary press of the power button on the M5StickCPlus, only button A and button B detection is described. Is there any way to do this in C++?

]]>https://community.m5stack.com/topic/3722/m5stickc-plus-detect-power-button-momentary-pressRSS for NodeMon, 09 Mar 2026 05:29:42 GMTMon, 08 Nov 2021 22:28:59 GMT60<![CDATA[Reply to M5StickC Plus - detect power button momentary press? on Tue, 09 Nov 2021 08:46:56 GMT]]>Hello @bazman

according to the schematic the power button only is connected to the AXP192 and not to an ESP32 GPIO as are buttons A and B. Luckily the AXP192 can be setup to detect the power button short / long press via interrupt.

Checkout the AXP192 datasheet - you can find it here. The AXP192 registers dealing with short / long power button press interrupts are 0x42 (IRQ enable 3) and 0x46 (IRQ status 3).

Thanks
Felix

]]>https://community.m5stack.com/post/15408https://community.m5stack.com/post/15408Tue, 09 Nov 2021 08:46:56 GMT