Hi all, I am building a home sunshade control system. Each sunshade is connected to a RS485 bus sytem. At every sunshade there is a pic12c508 for it's control. I want to use a serial control protocol (1 start ; 8 data ; 1 stop) using the pic12c508's internal RC oscillator. Is this RC-oscillator stable enough for eg. 2400 baud communication? (any code out there ?) When it's not perhaps I could use a bittime measurement on the first bit? (but how's this done?) Thanks Kurt Herremans Belgium