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Electronics

Garage Door Sensor Bypass

The Problem: when full sun shines on the garage door sensors, the door will not close.

Various websites list garage door “hacks” such as holding down the operation button or manually closing the door to circumvent temporary issues with these sensors. These are not hacks. Other “hacks” suggested taping the sensors together. Also unacceptable.

For about $10 in parts from Amazon, an adjustable frequency pulse generator based on a 555 timer can be built to replace/bypass the infrared garage door sensors.

Parts List

  • 1N4148 Logic Diode
  • Anmbest DC5-15V 4.2V V-PP to 11.4V V-PP NE555 Pulse Frequency Duty Cycle Adjustable Generator Module Square Wave Rectangular Wave Signal Generator
  • Breadboard
  • Wire

Basic Schematic

Finished Product

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Electronics
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