<![CDATA[Can the Atom accept external regulated 5V power?]]>Hi all,

I was wondering if the Atom can be powered by an external regulated 5V power source through the 5V pin or Grove connector 5V pin. I understand some other popular boards can allow this (such as the Arduinos), but I couldn't find any documentation on whether or not the Atom supports this too.

As I'm still a novice when it comes to electronics, I'm afraid of trying this out myself and risking damaging my Atom. Also, for space and cost reasons I want to avoid using the USB C connector to provide power.

]]>https://community.m5stack.com/topic/2341/can-the-atom-accept-external-regulated-5v-powerRSS for NodeSat, 07 Mar 2026 22:16:42 GMTThu, 17 Sep 2020 21:16:37 GMT60<![CDATA[Reply to Can the Atom accept external regulated 5V power? on Sun, 18 Oct 2020 12:48:40 GMT]]>Hello @koreanEggCoffee

yes, that is possible - I am powering my M5Atom this way.

However please note: There is no protection against wrong polarity so please be careful not to accidentally swapping 5 volts and GND.

I also suggest you disconnect the external 5 volts before connecting USB-C. Or in other words only connect one power source at the same time.

Please also refer to the M5Atom schematics which outlines the 5 volts connections between USB, 5v pin, Groove, LEDs and 3.3 volts regulator.

https://docs.m5stack.com/#/en/core/atom_matrix

Cheers
Felix

]]>https://community.m5stack.com/post/10384https://community.m5stack.com/post/10384Sun, 18 Oct 2020 12:48:40 GMT