![]() Solder another wire to the common terminal (C) and wrap it in electrical tape, also. Solder one wire to the Normally Open (NO) terminal and wrap it in electrical tape or shrink wrap (the other end will attach to the 5V source). Since the snap-action switches are going to be placed at the top and bottom of door travel, make sure that you cut enough wire to run from that position to where your Arduino will be in the coop. Here is a helpful video on Soldering a Switch. It may also be helpful to set a 10A fuse in line with the power source to protect the rest of the electronics from potential shorting. ![]() Whatever power source you decide to use, make sure it is capable of delivering up to 10Amps as the startup current for the inductive motor can be quite large. In the first figure, the 12V connections can either come from a 12V motorcycle/car battery or some other 12V power source. Here's a helpful video on How to Use Wire Nuts Properly. It is easier to connect the 5V, 12V, and ground nodes in the figure using wire nuts from Step 2. Any square foot board or metal sheet will do! These can be pulled out of an old dresser You can scrap these from the same vehicle (above). Also, Youtube has videos to disassemble car doors on most models! A quick google search will turn up locations near you. $30 12V Car Window Motor w/Wiring Harness.If you aren't able or don't have the time to find the materials you can purchase them online. We sourced the rest of the materials by going to our local pick n' pull or junkyard. ![]() Note: If you are able to pull the relays from a car vehicle you only need 2 Most of the materials in this guide can be sourced from various waste streams, however, here are some components that you will likely have to purchase.
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