BAT(-) = GND ? (using GND as battery -)

[PJ_Glasso]

Hi there,

Ok , well Your doing pretty good so far Stay at it , You will get there. It’s not rocket science but takes some attention to the details and it always works!.
Yes , I have seen this one before. With the Exceptions you stated , then you would be ok. Just no non-rechargeable plugged in at the same time as the USB-C. so Ok there.

I have them connected because I’m driving a Solenoid using an FET and need everything the BATTERY can give , normally they are not, and AFAIR (i’m older) they are NOT connected internally but you can check with a OHM meter. The external GND pin (13) and the (-) batt Pad.

Lots of good info here, so read it all and ask any questions you have as there are some VERY knowledgeable folks dropping in here.

HTH
GL PJ

here’s the Source,

Is BAT- the same as GND? (XIAO Seed BLE Sense)

I am planning a battery-operated project using the XIAO Seeed BLE Sense as the MCU and 19 NeoPixels. Here is a picture of my proposed wiring. My question is if the Negative Battery ‘pin’ is the same as the ground (GND) pin? Or are they different somehow? And what about when you plug in the USB to recharge the battery? Is the USB ground the same as the Battery (-) the same as the GND? And in my schematic, do I need to run a wire from the GND pin to the LEDs GND as well as the Battery (-)? Or do…

after a few posts , you will get enough forum cred to post your own threads and pic’s , etc.