Hobby servo tester
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Published on - 16th September 2013 21:54
I needed a quick way to test hobby servos that didn't involve radios, etc. I had a PIC18F development board with an RS-232 port lying around, so I wrote a quick and dirty tester.
I'm providing the source (in PBP 3) and the .HEX file. It does require an 18F PIC with a hardware serial port and 16K or more of FLASH simply because it presents so much text to help the user. The serial port runs at 9600 N-8-1.
It produces 8 channels of PWM for the servos with a refresh rate of 50Hz (20 mSec). You can increase or decrease the pulse width with the "U" or "D" keys on the keyboard. D-T interrupts are used, and the ints are shut off when the registers are updated since the values are 16-bit.
All should be clear by looking at the source.
You can find the files at
ServoControllerCL3.zip
www.charleslinquist.com/ServoControllerCL3.zip
Re: hserout issues on the 18F26K83
This could be due to your code and how the two terminals work. MCS will send the data when you click 'send', or when you hit 'Enter' if you have the transmit window setting 'Transmit on carriage...
tumbleweed Yesterday, 14:05