SainSmart 2 Channel 5v 3D Printed Really Board Mount
" target="_blank">XYZprinting Da Vinci 2.0 Duo 3D Printer came to the rescue as we drew this up in TinkerCad design and printed it out. Notice there are four 0.5 inch stand offs to mount the board and four tabs with 0.125 inch holes for mounting. One of the big uses for this is a garage door actuator, as we have two doors so interfacing with a Raspberry Pi to build a web based door opener seemed like a good project. As the idea with the tabs is to use drywall anchors and mount the relays and Pi close to the existing switch using a short run of wire to connect the two together. The power for this will come from the near by garage light switch as a small power supply will tucked away in the wall (use care and engage a professional if your not experienced with dealing, with house level currents).
Here is our newest design, a mounting bracket for a SainSmart 2 channel 5volt relay board mount which can be used with either the Arduino or Raspberry Pi (along with many others). These are very economical relay units and we picked up a half a dozen to play with and then we discovered, we needed a way to mount them and the