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SparqEE Forum • Is a dedicated power supply required if I use the Shield?
Page 1 of 1

Is a dedicated power supply required if I use the Shield?

Posted: Wed Sep 28, 2016 4:27 am
by housenumber
Hi, do I require a dedicated power supply for SparqEE Cell if I connect it via SparqEE Shield with a Raspberry Pi 2?

Re: Is a dedicated power supply required if I use the Shield?

Posted: Wed Sep 28, 2016 5:57 am
by donjohnii
The default setup is yes, it and the RasPi require their own power supplies.

You can either use a two cables, a 'Y' connector, or even jumper the 5V power pin to the CELLv1.0 to power it.

You could directly power it from a shield but you would need to create your own shield or jumper it yourself.

Re: Is a dedicated power supply required if I use the Shield?

Posted: Wed Sep 28, 2016 6:51 am
by housenumber
Thanks for your response. It helps. But I still don't clearly know what is best for my situation.
I would appreciate if you could clarify the last bits.

I am new to Raspberry and ARM world.
I would like to run it behind a (with rechargeable batteries).

So, you were so kind to outline the following options:

From power source directly via:
- two cables
- Y connector

Here I know what to do.

From RasPi directly:
- jumper 5V power pin to CELLv1.0

Image

Do I understand you correctly that I can use a cable from the two 5V pins to the CELLv1.0 to power it?

Which option do you recommend for my situation?

Re: Is a dedicated power supply required if I use the Shield?

Posted: Wed Sep 28, 2016 2:17 pm
by donjohnii
It's easiest always not to have to do anything custom... just get a Y micro cable off of amazon if you only want to use one type A usb adapter. If you want even easier, just use two normal type A to micro connectors. You could also jumper that 5v pin to the Vin of the CELLv1.0 and bypass the USB pins.