Im trying to design a micro circuit for a project im working on.
The way the circuit needs to work is as follows.
you activate a switch (needs to be off when pressed, up when on) and this then sets off either a 5 second or 10 second timer, Simultaniously it also charges a camera flash capacitor. After 5/10 seconds the timer fires the flash along with a buzzer.
After the flash and buzzer have sounded it needs to switch off until you press a reset button.
The flash needs to come from lots of mini LEDs (Dont know ammount yet)
Needs to be powered on a 1.5v AA battery
The dimensions i have are 20mm diameter and 100mm long with a top area of 40mm x 10mm But swtich also needs to fit in this area)
I had been toying with a disposible camera but i cant work out how the timers etc would fit and if i can get a timer that small.
If people could help this would be fantastic.
The way the circuit needs to work is as follows.
you activate a switch (needs to be off when pressed, up when on) and this then sets off either a 5 second or 10 second timer, Simultaniously it also charges a camera flash capacitor. After 5/10 seconds the timer fires the flash along with a buzzer.
After the flash and buzzer have sounded it needs to switch off until you press a reset button.
The flash needs to come from lots of mini LEDs (Dont know ammount yet)
Needs to be powered on a 1.5v AA battery
The dimensions i have are 20mm diameter and 100mm long with a top area of 40mm x 10mm But swtich also needs to fit in this area)
I had been toying with a disposible camera but i cant work out how the timers etc would fit and if i can get a timer that small.
If people could help this would be fantastic.