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bablokb / pcb-pico-power-switch

Suport PCB to switch battery power - designed for a Raspberry Pi Pico
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Example circuit controlling external chip #1

Open mosheliv opened 4 days ago

mosheliv commented 4 days ago

can you please add a diagram how this should be wired to turn off and on an external (not pico) mcu? like esp32 :)

bablokb commented 2 days ago

This depends on the specific MCU. Which one do you have?

mosheliv commented 2 days ago

Esp32 cam but should be general diagram. Where to connect power, etc.

On Tue, Sep 17, 2024, 20:26 bablokb @.***> wrote:

This depends on the specific MCU. Which one do you have?

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bablokb commented 2 days ago

I think GND, SDA/SCL and done pin are clear (and not specific). Otherwise, it is important what the device actually gives you. If you only have a 5V-inout pin, you would connect VSYS to 5V-inout and either add a schottky, or a jumper in between. If your device has a BAT-in pin, then you would connect VSYS to the BAT-in pin. Depending on the device, you would connect USB/5V to VBUS, but if Bat-in is already protected internally, you don't need to.

So without specific knowledge of the device and without a schematic, it is hard to give sound advice.