The Power Supply kit is a handy device that can be used in a multitude of projects. You can use it to wirelessly power your builder base and all connected components. The power supply accepts 7-12V batteries via a 2.1mm barrel jack and regulates the voltage down to 5V or 3.3V. The power supply can connect to the Builder Base via the 3.3V or 5V ports.
Step 1: PCB Assembly and Soldering
Take a look at the required components above and determine their final position on the PCB. The following images should be a good reference:
Place groups of components on the board and then solder them to the pads. It is recommended to start with components with the lowest profile, like for example resistor and then move up to components like buttons with higher profile.
To determine the values of the given resistors and to place them in the correct position, please refer to a resistor color code calculator like this one:
Using some form of work holder is advised. You can find a list of suitable work holders on our Recommended Tools List.
Don’t forget to place the heatsink pad between the heatsink (M1) and the voltage regulator (U1). Screw them together with an M3 screw and an M3 nut that come in the DIY Kit.
Two additional M3 screws are included to mount the DIY Kit to any project board.
Step 2: Connecting to the Builder Base
You have two options for connecting the power supply to your Builder Base: you can use the male headers on the bottom of your PCB to stick it on the GND and VCC rails of a bread board, or you can use the screw terminals located on the top of your power supply. Both options serve the same purpose, but one might work better for a given project than the other. Don’t forget to set the switch to your desired voltage.
Any project compatible
The Power Supply DIY Kit can be used in a variety of projects! It can power your Builder Base or your entire Breadboard circuit!
Assembly files for the current revision of the DIY Kit (Rev G):