Premium RDF Member
- Mar 8, 2016
- Reaction score
- Land of Spuds and Gems
[video]https://youtu.be/g-xtMJBxzpU[/video]Q1 and Q2 are driver transistors, that control the jamming LEDs.
The capacitors are most likely power supply filtering/decoupling capacitors.
The LM2940T is a voltage regulator.
The 74HC02 IC is a quad 2-input NOR gate. Not a microcontroller as I would have expected. This thing is simple indeed. I bet it doesn't even detect incoming LIDAR, it just puts out pulses continuously (the NOR gate chip being used as an oscillator).
Are there any markings on the gray box next to the IC? I'm guessing that's a capacitor used for the oscillator.
Hook it up to a power supply and see if it does anything. Use a cell phone camera or a RD's lidar sensor to see if it puts out pulses constantly.
There's 4 wires going to it. One would be power and one would be ground, what are the other 2 for? An indicator LED for the dash or a switch or something?
I doubt it could jam a TV remote, much less a LIDAR gun.
The smaller capacitor has a leg broken. When I hook up either set of wires, the LED's light. I have also hooked them up together with the same result.
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