Hello. First of all I want to say that I'm very happy to find this electronics international forum.
I'm working hard on a circuit that depends on the thermostat's state (on/off). The thermostat gets in the off state when it's case reaches 160 degrees Celsius.
When the thermostat is ON a green LED lights.
When the thermostat is OFF the green LED get's OFF and a red LED get's ON. Among with this red LED there's an oscillator that I want to beep just for 5 seconds when the thermostat get's OFF (here is the big problem).
I figured out a circuit (I tried to made it by myself), I attached it. Please tell me where is the problem. In the right part of the circuit there's the oscillator which depends on the relays state. The NC means normally closed and NO, normally open (relay is in normal state when it's not energised). The circle with the T is the thermostat. I hope you can understand the circuit.
THANK YOU!
I'm working hard on a circuit that depends on the thermostat's state (on/off). The thermostat gets in the off state when it's case reaches 160 degrees Celsius.
When the thermostat is ON a green LED lights.
When the thermostat is OFF the green LED get's OFF and a red LED get's ON. Among with this red LED there's an oscillator that I want to beep just for 5 seconds when the thermostat get's OFF (here is the big problem).
I figured out a circuit (I tried to made it by myself), I attached it. Please tell me where is the problem. In the right part of the circuit there's the oscillator which depends on the relays state. The NC means normally closed and NO, normally open (relay is in normal state when it's not energised). The circle with the T is the thermostat. I hope you can understand the circuit.
THANK YOU!