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I regularly come back to designing fairly simple PIC projects, normally after long breaks, and I think I may have missed something whilst away. I am using a 18F device for the first time, and as...

Thanks everybody, thought I may have run before walking, but seem to have got away with it. Thank you Charles, your post was very helpfull. The boards are all daisy chained with 10 way ribbon cable,...

I need to communicate information to 5 boards running 18F2455 PIC's for a mains lighting controller system. I should have asked this question before designing the boards and having them made I guess...

Although I have a specific application for the 40 way version of the controller, I was going to make the 8 Way Mains triac driver boards, universal for other projects, and have proper PCB's made for...

My maths is terrible, so I need a little help here please.
I need to dim 40 mains lamps from 1 PIC. Because I want to spread the mains switching over several PCB's, I would like to use the Philips...

Would like to add some sort of Auto calibration to the system if possible, to iron out any variation is resistor tolerances across different PCB boards. The PIC I am using has some on-chip EEPROM...

Thanks Melanie, you are a star worked first time, love you to bits.

I struggle with maths (you may ask what am I doing here) and need help.
I am using a PIC with a 10 bit ADC as a volt meter, on a battery monitoring circuit. I need to read up to 100 volts DC, and...