Electronics > Projects, Designs, and Technical Stuff

Garage door sensor UART?

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nyo:
I have a garage door motor, board and sensors that I'm taking apart. For the sensor it has logic behind it, trying to figure out how to read it. Is it UART?


Main board

Sensor

Signal on oscilloscope

Plain logic

UART?

tecman:
It is actually a custom chip designed for door openers.  It has the logic, various timers and decoding logic for the transmitted coding for the opener.  Not much use other than an opener.

paul

Lawsen:
The chip might be those ASIC, application specific intergrated circuit chip, not a general purpose UART.  It is designed to lower manufacturing costs by high volume.  Omerons are magnetic relays to drive the higher current motor to open and close the garage door and buffering for the sensors.  Is this from a Chamberlin, Genie Overhead Doors, or Stanley?  These are the most popular brands in California, U.S.A. 

Lawsen

nyo:
Thanks for the replies guys

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