How To Hijack Garage Door Opener Frequency

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How to hijack garage door opener frequency.

First you ll want to open the access panel on the backside of your garage door opener. Next you will need to shut power to the garage off with your circuit breaker. Garage door opener remotes work on radio frequency waves typically from ranges of 300mhz to 390mhz. The basic process goes something like this.

First plug the garage door opener into an outlet in the house using an extension cord. Now you ve reset your door codes and your remotes should not work. Before we get into the details of the vulnerability let s explain a bit about how automatic garage door openers developed. This system worked fine until security became an issue because remotes were developed to quickly run through all frequencies in the 300 400 mhz range thus finding the correct frequency to open a given garage door.

I use sdr radio and audacity to do the hacking and an ad9850 dds and an arduino to create a clone. Next you ll test the range on your remote controls to see if it improves. Dip switches older garage door openers used dip switches to set the frequency of the garage door opener. The first electric garage door opener was introduced in 1926 but didn t gain in popularity until after world war ii.

Look for a button that says learn and hold that down until the light starts blinking. How garage door openers work. Find garage door opener parts fast with our parts and compatibility charts at garage door supply company. Usually 9 10 or 12 switches if your garage door opener has dip switches you will need to change the position of the dip switches on the opener receiver and then match the dip switch positions on your.

These dip pins frequencies operated in the 300 400 mhz range. Hack your garage door opener to make it safe and more practical. These dip pin settings would set the frequency the opener and remote operated on.