smudgepost
New Member
Hi, I was building a small LED timer project with a 555 timer (within my scope) then extra features were added that put the job outside my scope. A PIC option might be better, though this is beyond my expertise and wondered if anyone would be able to provide the skills as a little home-work. I need help with the circuit as I have to make about 40..
A bit about the project:
It is a circuit for a toy, with a flashing LED and digital beep or pip sound to match the blinking. I'd like to have the flash with and without sound/switchable. It needs to be as compact as possible so probably limited to button batteries and 1.5 - 3V.
It also needs to include a super bright LED or flash bulb and reed switch. The concept is that when the circuit is broken, the LED flash speeds up, as does the beep, then the super bright flashes, a little like a time bomb effect from an X-Files or something.
Specifics:
Timer circuit pulsed flash of LED, like typical 555 circuits, delay about 2 seconds, pulsed not on/off blink.
Switch for on with sound, on without sound and off.
Pieze speaker or similar outputting digital 'bip' coinciding with led flash, similar to ecg machine.
High power possibility
A bit about the project:
It is a circuit for a toy, with a flashing LED and digital beep or pip sound to match the blinking. I'd like to have the flash with and without sound/switchable. It needs to be as compact as possible so probably limited to button batteries and 1.5 - 3V.
It also needs to include a super bright LED or flash bulb and reed switch. The concept is that when the circuit is broken, the LED flash speeds up, as does the beep, then the super bright flashes, a little like a time bomb effect from an X-Files or something.
Specifics:
Timer circuit pulsed flash of LED, like typical 555 circuits, delay about 2 seconds, pulsed not on/off blink.
Switch for on with sound, on without sound and off.
Pieze speaker or similar outputting digital 'bip' coinciding with led flash, similar to ecg machine.
High power possibility
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