We found this circuit in an old documentation. Its purpose is to turn on warning lights when the vehicle in a garage touches or passes a sensing bar preventing it from hitting the wall.
In the MEMs line of the ST available on Mouser Electronics we highlight the MP23AB01DH audio...
The circuit shown uses the 741 operational amplifier, but lower noise and higher gain equivalents...
When the temperature rises above the value adjusted by P1 the relay triggers on. The rated voltage for the...