While building a circuit that would flash and beep, it hit me that I could modify a disposable camera to make it.
The periodic flashing could be achieved by replacing the manual 'take picture' switch with a neon bulb, that should trigger the flash repeatedly at a certain cadence.
And previously in the circuit, the AC inverter output should nicely drive a piezo disc loudly, if I bring the oscillation frequency to 2 - 4 KHz
While I look behind the spider webs for my canibalized camera boards; your suggestions are welcome.
The periodic flashing could be achieved by replacing the manual 'take picture' switch with a neon bulb, that should trigger the flash repeatedly at a certain cadence.
And previously in the circuit, the AC inverter output should nicely drive a piezo disc loudly, if I bring the oscillation frequency to 2 - 4 KHz
While I look behind the spider webs for my canibalized camera boards; your suggestions are welcome.