Need help with a PIC Turn Signal Reminder circuit for a motorcycle

Thread Starter

amaggion

Joined Feb 11, 2009
1
Need help with a PIC Turn Signal Reminder circuit for a motorcycle
can anyone help me with a similar circuit and PIC software?

I need to build a turn signal alert circuit to remind me when motorcycle indicators have flashed more than 20 seconds, by activating a mini buzzer. The system does not count indicator flashes (20 seconds) if the brake lights is lit, so it is less likely to activate if you are waiting at a junction, with the brake on.
Thanks
 

Dutar

Joined Jan 27, 2009
13
You can use change notification (CN) interrupt to detect the switching ON of signal and inside the interrupt loop after checking signal pin state enable a timer. For CN you can use both low to high and high to low, so that you can detect both switching ON and switching OFF.
 
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