How to power M5Stack Core 2.
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Hello everybody, I'm working in a project with this amazing MCU and I have one question.
The project consist in a system remotely programmable so I'm using the LAN module K012-B.
As you know, this module have an addicional input supply. The question is the following. Can I power all the system by this way and if I need to reprogramming be able to connect the USB port ? The 2 at the same time. I look the schematic but I doesn't find any protective diode.
Thank you.
Rob -
Hello @Robertolo
if you look at the M5Core2 schematic in the top left corner you'll find AXP192 and its inputs ACIN (connected to USB_5V) and VBUS (connected to BUS_5V). USB_5V comes from USB and BUS_5V comes from the LAN module.
The AXP192 automatically switches between the available power sources and picks the one best suitable. Please also check the AXP192 datasheet.
Thanks
Felix
