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How to run a dc motor with basic stamp microcontroller? — Parallax Forums

How to run a dc motor with basic stamp microcontroller?

fahadfahad Posts: 14
edited 2010-12-23 17:23 in BASIC Stamp
Hi I want to know that how do you run a 5V dc motor with basic stamp. Do you need any relay to run the dc motor? And if a relay is required then is it just simple programming to turn it on and off. I just want to use the motor as a fan for project. Like High ... to turn the motor on and low... to turn it off..

Thanks in advance.

Comments

  • wiresalotwiresalot Posts: 40
    edited 2010-12-23 15:20
    Yes you would need a relay to do that, your Stamp may not be able to handle the load of the motor, An external DC power source may be needed.

    wiresalot
  • Spiral_72Spiral_72 Posts: 791
    edited 2010-12-23 17:22
    You can get tiny reed relays for that. Make sure you look at what the current draw of the fan is. Reed relays are typically pretty low current capacity. For a relay you'll need a current limiting resistor, and a diode. It's very simple. I'm sure someone on here has a schematic, or you can search these forums for it. It's a common request.

    Use a transistor and you have the option of speed control too :)
  • ercoerco Posts: 20,257
    edited 2010-12-23 17:23
    Tons of motor/relay info in the sticky (always listed first): http://forums.parallax.com/showthread.php?110200-Member-Supported-FAQ&p=921885#post921885
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