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Cheap 20 second recording module — Parallax Forums

Cheap 20 second recording module

A.C. fishingA.C. fishing Posts: 262
edited 2006-03-14 00:57 in General Discussion
Quick GO TO RADIOSHACK!! Get a 11$ recording module! It can record up to 20 seconds. Now before you leave, get a motor for 2.69$. Now, you can make your own recording module controlled by a BS2.
Ok. This is for people who don't know how to hack into this little guy. You can do it the strange but easy way. Take out your recorder and module. We see a problem; you need to press a button to play the record, so unless you hack and re-wire that part of the circuit, the BS2 can't control it directly. That is what your motor is for. Ok. Let's have a look at that play button record a samply and press down. The recording plays.·Now record a sample and squash the button on the side. Nothing. Keep squashing at different angles until you hear it play. Squash again. Once you find the spot where your module plays after being squashed to the side, remember it. Now look at the motor. Epoxy yhe axle to a thread spool, so when the motor spins the thread PULLS IN! That is important. Now, epoxy some thread to your play button on the side where your spot is. Wait. Ok. Make sure your thread pulls the play button when the motor runs. Now attach two jumper wires to youre motor, mount the module on your board, attach the wires to P5 and VDD 1(start of VDD row). program your board, and there you go! What is the command you use to make the DC motor run??

jumpin.gifjumpin.gifjumpin.gifroll.giflol.gifburger.gifyeah.giftongue.gifjumpin.gifhop.gif

PS- I didn't think this qualified for a project and that is why I chose this forum.roll.gif

Post Edited (A.C. fishing) : 3/12/2006 6:06:17 PM GMT

Comments

  • Steve JoblinSteve Joblin Posts: 784
    edited 2006-03-12 21:22
    You can't runa DC motor directly from a Stamp... you need to drive a motor through an H-Bridge or other Motor Driver Circuit... The commands that you would use are either the "High"/"Low" commands or "PMW", but again, you can't connect a motor directly to a Stamp.
  • A.C. fishingA.C. fishing Posts: 262
    edited 2006-03-12 21:30
    So the stamp can't send power to a motor? What about another device?
  • A.C. fishingA.C. fishing Posts: 262
    edited 2006-03-12 21:36
    Please expain some more I don't under stand why the stamp can't just send power??
  • Steve JoblinSteve Joblin Posts: 784
    edited 2006-03-13 00:23
    Yes... the Stamp can send power... the problem is that it can't send a lot of power.... It can operate a LED, for examle, but it can't drive a heavy load that motor requires...
  • Jake11611Jake11611 Posts: 47
    edited 2006-03-13 21:51
    I saw that recorder too, I wanted to make a robotic parrot with it. Couldn't you use a transistor?
  • A.C. fishingA.C. fishing Posts: 262
    edited 2006-03-14 00:38
    Can the stamp send enough power to charge the recorder?
  • Jon WilliamsJon Williams Posts: 6,491
    edited 2006-03-14 00:57
    Probably not, especially in play mode when a lot of current is required.· What you'll want to do is learn how to interface microcontrollers with "real world" devices -- and this article will help:

    http://www.parallax.com/dl/docs/cols/nv/vol1/col/nv6.pdf

    It's a few years old an uses the Stamp 1, but the techniques and strategies apply to the Stamp 2 as well.

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    Jon Williams
    Applications Engineer, Parallax
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