tristanlee85
New Member
I'm designing a knock sensor citcuit for a car to detect when kncok occurs. Currently, the circuit works as: when there is no knock, the output is 0V. When there is knock, the output is 12V. Now, I would like to keep the current output from the 555 times just as it is now because that activates a LED and a buzzer. Off of the current output, I would like to design a circuit to take the 0V (when there is no knock) and make the output 5V, and when there is knock (12V), take the 12V and output it as 0V. The reason I am doing this is because the device I would like to additionally output to requires a 0V (knock) to 5V (no knock) input where as my current output is 0V (no knock) and 12V (knock).
If you need me to explain anything a little beter, I'd be glad to.
If you need me to explain anything a little beter, I'd be glad to.