Mike RigsbyAfter the alarm container has been printed, insert the wire from the 9 volt power supply through the hole in the container.
Now, solder the wires to the alarm module (where the battery was intended to connect). Be certain that polarity is correct.
Connect the Power Supply
A project log for Call Box
Pushing a button will sound a piercing alarm to alert a caregiver (in another room) that attention is required.
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