Polou SPDT Relay Case
thingiverse
Sadly the remix page is giving me a 404 at the moment, but this is a remix of "Pololu Relay Box" by KikiTay, Thing# 2803884 The original design slightly differed in dimensions to my relay bought from Pimoroni which was the single 5V relay item # POL-2480 The remix includes lugs on the top and bottom parts to allow a single screw to pass through both to hold the unit together. The top pins for control are permitted through a larger than required opening - this could be narrowed if needed. Front access to the relay outputs is also possible as are the screws for tightening down connections. I've used this myself to contain the relay to turn on / off our exterior Christmas decorations connected to a PiZeroW, using MQTT and Home Assistant. A link to my blog will be included once I've wrote an entry.
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