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?
3.3V Xbee Adapter Pins
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- adafruit_support_bill
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Re: 3.3V Xbee Adapter Pins
The schematic is here: http://www.ladyada.net/images/xbee/xbee11sch.png
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.
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.
Please be positive and constructive with your questions and comments.