About

A simple power supply board for Arduino, that converts 110v - 230v AC voltage to 5v & 3.3v DC. Perfect to power up Arduino projects & other microcontrollers.

Arduino Power Supply Recipe

Recipe to build the Arduino Power Supply project

Components

• Myrra 47122 AC/DC module 5V 2.75W (http://canada.newark.com/myrra/47122/power-supply-2-75w-5vdc/dp/90R9579)
• 2-pin screw terminal 5mm pitch (https://www.sparkfun.com/products/8432)
• 4-pin header (https://www.sparkfun.com/products/116)
• 3.3V voltage regulator (https://www.sparkfun.com/products/526)
• 10uF polarized capacitor
• 100nF capacitor
• PCB (see Fabrication step)

Fabrication

• Send the EAGLE files at https://github.com/openhardwarelabs/arduino-power-supply/tree/master/pcb
• Send these files to a PCB manufacturer
• Wait until your receive the PCB

Assembly

• Mount all the small components on the PCB and solder them
• Mount the Myrra AC/DC module and solder it

Test

• Connect the 2-pin screw terminal to the main power, for example with a male power plug
• Use a voltmeter to check the output 5V & 3.3V pins