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3.3V Xbee Adapter Pins
Moderators: adafruit_support_bill, adafruit

3.3V Xbee Adapter Pins

by seancron on Sat Aug 04, 2012 11:22 pm

I have an Adafruit Xbee adapter that I'm trying to use to update a 3.3V LCD from my computer.

I'm planning on powering the Xbee and LCD with 4 NiMH AA batteries. I was just about to wire up a circuit to regulate the battery voltage, when I noticed the 3V pins on the Xbee adapter.

Can I use those pins (#1 and #10) to power my 3.3V LCD, if I connect the battery pack directly to the 5V and ground pins on the Xbee adapter? Or should I still make a circuit to regulate the voltage for both?
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Joined: Sat Jul 07, 2012 5:13 pm

Re: 3.3V Xbee Adapter Pins

by adafruit_support_bill on Sun Aug 05, 2012 6:01 am

The schematic is here:
The 5v pins are fed to a 3.3v regulator which powers the level shifter and is also available on pins 1 & 10.
You should be fine powering it with the 4.8v from your NiMH cells.

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Joined: Sat Feb 07, 2009 10:11 am