> See for schematics and code of my 'orientation light': > http://www.robh.nl/electro.php#led683. Neat code Rob. I'm planning on doing this in assembly though. I looked at a few app notes from Microchip and the 16F88 datasheet has decent example code for making an RTC using T1. On 1/14/07, Jinx wrote: > > I still am curious about Timer1 and WDT > > WDT is not a good time-base for a clock. It's temperature- > dependant and will drift all over the place. 32kHz on TMR1 > is far better, although that too is variable and will not be very > accurate in the long term. Even 1Hz out is 2.6s per day error > Thanks Jinx. I don't really need it to be too accurate. This is really just a learning activity for me. I've been on winter break, but a new semester begins Tuesday, so I've been learning as much PIC stuff as possible over break. -Scott -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist