I have the older 8 servo controller with the dip package PIC. I assembled the kit around a year ago and put it away to work on other things.
When I got it back out and started tinkering, it passed the initial test (all LEDs on with serial line grounded). So far so good.
During my next tinkering session, I accidently hooked the 12v side of my power supply to CON1 and fried the poor thing.
So I’ve put in a replacement PIC and it passes the initial test with 5v on CON1. I get a solid yellow LED when I connect CON3 to a serial port.
I’ve tried sending commands with the Visual Show demo program in Mini SCC II mode, Pololu mode with the VB test program I found in this forum, and a VB.NET program I wrote in Mini SCC II mode.
In all 3 examples, the red LED comes on solid and the green LED flashes indicating too high of baud rate. I’ve tried everything from 1200 to 19200. I’ve tried COM1 and COM2 with the same results. With my VB.NET program, it happens after the first 0xFF byte is sent.
Could I have fried more than just the PIC with 12v? I don’t have access to an oscilliscope (or know what to do with one, for that matter) I do have a basic multimeter if that helps.