Hey Guys,
Just a hobbyist working on a project, and been reading on Element14 for a while, just never had a issue i though needed posting. However today its time.
Building some circuits for some friends using a 433 receiver. Im programming 433mhz remotes to send out specific codes. However these remotes are cheap ebay remotes that can be learned any code. To start the remote in learning mode you just press button A and B at the same time.
I have measured the whole circuit board of the remote to find a bridge or any pin i can alter to make sure the remote does not accept the 2 button presses to enable learning mode. However with no result! In the picture i circled 2 points i tried to bridge, but with no result.
I hope somebody recognizes the circuitry and may be able to shine some light if this is even possible to do.
The chip that manages everything has not a single piece of text on it, so maybe somebody recognizes it by the measurements i did? I tried to mark all the components i could find markings on in the picture.
Type of the remote: HFY408G rev 2.1
Uses a 12v battery.
Hope anybody has any idea. Thx!