Servo Motor Control and Stepper Motor Music
I am NOT a great programmer, but I do eventually get things figured out!
You can use a RS232 to TTL Level Changer, but they require a 5V d.c. from another source
For a simple internal tap ... GND, +5V d.c. and TTL Data OUT;
The Secret Sauce?
For Stepper Motor Control I'm using a Pololu.com Stepper Motor Controller
Please let Pololu.com know I sent you!
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Now you write a better program and send it to me to be posted here.
wperko brainless org
That will allow use of the serial port on the back of the computer.
For Servo Control I'm using a Pololu.com Maestro Servo Motor Controller
Maestro Servo Motor Controller
TIC Stepper Motor Controller