Not likely.· Max output of a Stamp pin is 25ma.· If your motor runs on 15ma then maybe, but the inductive kickback when you stop it could burn out the Stamp pin.
The reason for all of this is, I bought a MOTORIZED MOUSE kit from HobbyTown. It's made by Tamiya. I want to add in the BS2 and control the movement of the mouse with a HIGH command. It has 2 1.5-3v motors, but only one moves at a time.
You would probably burn-up the BASIC Stamp pin that you use to power the motor. The BASIC Stamp, like other electronic components, has published specifications and if you exceed them you could endanger your BASIC Stamp.
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That's great -- just follow Scott's guidelines from the article (see earlier post) and you'll be fine.· Don't connect the motor directly to·a BASIC Stamp I/O pin.
Jimmio said...
The reason for all of this is, I bought a MOTORIZED MOUSE kit from HobbyTown. It's made by Tamiya. I want to add in the BS2 and control the movement of the mouse with a HIGH command. It has 2 1.5-3v motors, but only one moves at a time.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔ Jon Williams Applications Engineer, Parallax
Jon, the table showing three transistors and the resistor values/voltage etc... in the article made me wonder. Are there some spreadsheet for common components that have the specs like the table shows? Perhaps having the math functions plugged in for calculating resistors and capacitors for designing circuits? There has to be some programs written that make the design selection of components easier for a novice as well as application engineers I would think.
There might be such a program or spreadsheet, but I'm certainly not aware of one. Engineering is not always cut-and-paste; we have to start with the components we want to use and design the rest around those specifications.
You might do a web search for circuit simulators -- those will let you experiment with various component values and take care of the calculations for you.
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Try two Tilden H-Bridges. They are tiny, cheap, and will protect the BasicStamp.
Each one is composed of 6 transistors and two resistors. You build it 'free-form' [noparse][[/noparse]no circuit board] and you have a tiny home-made IC.
I had one operationg for a week 24/7 with forward/reverse of a little DC motor.
No damage. Occasionally, it would lock up and I would merely reset.
Not sure why the lockup [noparse][[/noparse]low power from my AC line, inductive kickback, voltage regulator got upset, or ?]
Jimmio
Posts: 43
Comments
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Jon Williams
Applications Engineer, Parallax
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Sid Weaver
Do you have a Stamp Tester yet?
http://hometown.aol.com/newzed/index.html
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Jon Williams
Applications Engineer, Parallax
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Jon Williams
Applications Engineer, Parallax
You might do a web search for circuit simulators -- those will let you experiment with various component values and take care of the calculations for you.
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Jon Williams
Applications Engineer, Parallax
Each one is composed of 6 transistors and two resistors. You build it 'free-form' [noparse][[/noparse]no circuit board] and you have a tiny home-made IC.
I had one operationg for a week 24/7 with forward/reverse of a little DC motor.
No damage. Occasionally, it would lock up and I would merely reset.
Not sure why the lockup [noparse][[/noparse]low power from my AC line, inductive kickback, voltage regulator got upset, or ?]
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G. Herzog in Taiwan