RFduino Power Shield
RFduino Power Shield allows to power an RFduino module from batteries, and provides 3 outputs (VCC out, +5V out, +3V3 out).
If you want to know more…
If you want to know more about RFduino, you may have a look to About RFduino.
RFduino Power Shield uses few items:
- A barrel jack connector for input power.
- One LM317T voltage regulator with a 270Ω and 820Ω resistors for +5V line.
- One LM317T voltage regulator with a 220Ω and 360Ω resistors for +3V3 line.
- Three 100 µF capacitors to filter voltage spikes.
The perfoboard assembly and schematics
Schematics and code are available as a Frizting file.
RFduino Power Shield in action
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