Things used in this project

Hardware components:
Screen%20shot%202016 07 29%20at%204.35.08%20pm
Onion Omega2
×1
Rechargeable 3.7V Battery 18650
×1
On semiconductor lm317tg
Linear Regulator with Adjustable Output
×1
Resistor 120 ohm
×1
Resistor 470 ohm
×1
Resistor 750 ohm
×1
Fairchild semiconductor 1n4004. image
1N4007 – High Voltage, High Current Rated Diode
×1
Panasonic eca1hm2r2
Capacitor 10 µF
×1
09590 01
LED (generic)
×1
Hand tools and fabrication machines:
09507 01
Soldering iron (generic)

Schematics

Regulator Circuit
The idea here is to get 3.3V using the LM317
Screen shot 2017 02 13 at 01 ae58vqoxfx

Credits

1arovxw8 5oakbksypr
Carlos Silva

Hardware and software developer.

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