Hello,
I'm a beginner with electronic engineering, and this is a project I'm doing at my house. I could use a little help with the details.
The system is relatively simple, I'm just not educated enough yet. I have two switches. Both switches start in the closed position. When one switch opens, it will start a countdown from 5 minutes. If either switch toggles, the countdown stops. If at the end of 5 minutes, one switch remains open, and the other closed, I want an RF transmitter to activate, sending a signal to the horn of my car. The horn should rapidly beep, with two second interrupts thereafter, until the system is deactivated by placing both switches in the same position.
I am trying to do this project at very low cost.
I already have the switches. Will a 555 timer work for my countdown, and for the two-second interrupt? (I don't need digital display, or recall, just a simple counter) Also, where can I find an RF transmitter that will fit the bill? It needs to be low power, and programmable.
I'm a beginner with electronic engineering, and this is a project I'm doing at my house. I could use a little help with the details.
The system is relatively simple, I'm just not educated enough yet. I have two switches. Both switches start in the closed position. When one switch opens, it will start a countdown from 5 minutes. If either switch toggles, the countdown stops. If at the end of 5 minutes, one switch remains open, and the other closed, I want an RF transmitter to activate, sending a signal to the horn of my car. The horn should rapidly beep, with two second interrupts thereafter, until the system is deactivated by placing both switches in the same position.
I am trying to do this project at very low cost.
I already have the switches. Will a 555 timer work for my countdown, and for the two-second interrupt? (I don't need digital display, or recall, just a simple counter) Also, where can I find an RF transmitter that will fit the bill? It needs to be low power, and programmable.