RB0/INT is used for the zero cross detection.
PIC16F84 based TRIAC / IGBT phase controller for 50/60Hz brightness control by Mike Pearceįrom readme.txt: A single channel phase controller for a PIC16x84 10Mhz. Mike tracked down the problem and had the system adapted to counter for the glitches, due to this nice piece of design work. They set up a PC with a serial program, and came back the next day to see exactly when the flow had dropped. If the pulses dropped below a pre-determined threshold, it would log the date and time out to a serial port.
It would measure the flow, based on pulses from a flow meter. So, Mike Pearce designed a water-monitor. This means the run would have to be started again. Unfortunately, as the story goes, there was a problem with the water supply controller, and it would periodically drop pressure and the machine would shut down. It was water cooled, and each run would take 24 hours and cost the client a lot. Here’s the scenario: at University of Canterbury, New Zealand, they operate a hugely expensive X-ray crystallography machine. PIC16F84 based pulse monitor with date/time output to an RS232 serial port by Mike Pearce They give a window into the way he does his code, and perhaps you will learn a few tricks from him 🙂 Enjoy! These projects partially cover the 8+ years of work he performed in the Chemistry Department and as a hobby. He is an excellent programmer for PIC micros, and manages to make them do things that I barely thought were possible. These sample Hi-Tech C projects were supplied by Mike Pearce while he was working at the University of Canterbury, New Zealand.
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