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7. Conclusion

A combination of C and Tcl/Tk is an easy and powerful way to make graphical controls for your devices. Tcl/Tk gives you a flexible set of commands for creating the graphical interface, while C lets you execute the low-level commands necessary to get at the serial port. This technique is good for making a wide variety of computer programs, for robotics and other things. Personally, we have been using four variations of it: the one you saw in this demo, programs for interfacing with a stepper motor controller and a nanometer-precision piezo controller, and even a jukebox for playing music from our mp3 collection! We hope you find it as useful as we have.

New Products

Free Circuit Cellar magazine October 2019
15:1 Micro Metal Gearmotor HP 6V
100:1 Metal Gearmotor 37Dx73L mm 12V with 64 CPR Encoder (Helical Pinion)
6V, 5.5A Step-Down Voltage Regulator D36V50F6
5V, 5.5A Step-Down Voltage Regulator D36V50F5
15:1 Micro Metal Gearmotor HPCB 12V
6.3:1 Metal Gearmotor 37Dx65L mm 12V with 64 CPR Encoder (Helical Pinion)
7.5V, 5A Step-Down Voltage Regulator D36V50F7
12V Motor with 64 CPR Encoder for 37D mm Metal Gearmotors (No Gearbox, Helical Pinion)
Free Circuit Cellar magazine August 2019
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