I put together both pcb’s in the kit, installed 2 brand new 9V batteries.
When I turn the 2 switches the alarm goes off, my initial thinking was that the transmitter was not functioning properly, but i am not sure how to go about proving that.
I have used a continuity probe and I noticed that only 1 of the led’s is active when the switch is set to on, and when the switch is set to off the other led is active. Does this make sense?
Can anyone provide some basic troubleshooting techniques or any other information that may be helpful.
Most likely an assembly problem.
Use a digital camera or cell phone with camera to check if the transmitter works (camera’s can ‘see’ IR light)
If the transmitter works, check the receiver. Check orientation of all polarized parts such as diodes, leds, caps, etc…
Battery operation is not recommended. Use a 9-12VDC regulated PSU for the receiver. Check all solderings and check PCB tracks for continuity.
Keep in mind that IR is highly directional. The slightest misalignment can cause the alarm to go off. Avoid direct sunlight or direct radiation from lightbulbs or fluorescent lighting.