Go Down

Topic: PCF8583 as an event counter (Read 2284 times) previous topic - next topic


Hi Everyone,

I hope this is the best choice for a category, if not please advise.

I want a solution that'll count switch closes while the arduino is sleeping and that won't hog up the arduino's interrupts.  I bought a couple PCF8583, most noteable for being an RTC, but also has an event counter mode.  I have it hooked up correctly, at least I'm pretty darn sure, I have the i2c working.  Problem is if I put even a simple switch on the input to this, when I close the switch it reads erratic counts of closures, sometimes 2 closures, sometimes 30 or more, and everywhere in between.  It's only supposed to count falling edges.  Any suggestions for making this thing work, or for maybe a different IC that'll count switch closures for me and allow me to read them w/i2c?  (i2c is easy for me, that's why I'd like to go that way).


Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131