Arrow Antenna/HRD/Arduino/Servo Build Thread

Discussion in 'Satellite and Space Communications' started by KE5SWU, Jan 8, 2010.

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  1. KE7VZW

    KE7VZW Ham Member QRZ Page

    I just got started with microchip's pic and the arduino simultaneously..... I will be watching this thread with great interest. I'm just now moving past hello world so it will be awhile before i can contribute, lol. I just did the servo/pot control on the arduino (knob.pde), and also just figured out how to compile and upload my code from winpic800 to the 16f877a i bought. Sivava's version of the willem programmer RULES. Along with the j1 icsp 40 pin header.

    I need to pick up one of those protoshields , they look handy. I built the wingshield and it is nice tohave the terminals.

    Anyway, cool project, will be checking in......
     
  2. KE5SWU

    KE5SWU Ham Member QRZ Page


    Well honey does and kids have been taking up most of my time. I am hoping to get back to this shortly. I have find really enjoyable to play around with the arduino.
     
  3. KF5FEI

    KF5FEI Ham Member QRZ Page

    Just a thought for those wanting a portable battery-powered setup:

    Servos and stepper motors take power to hold their position. A worm-gear drive or planetary-gear drive will hold its position without power. Also, servos are pretty limited as far as the amount of weight they can move and hold -- unless you modify them for continuous rotation and gear them down quite a bit.

    I've been pondering the same setup, but my plan is to use some car window motor / gear boxes and some sort of encoder.
     
  4. KE5SWU

    KE5SWU Ham Member QRZ Page

    Those are all great points. I have a pile of linear actuators off car seats, but I have not found a good way to use them. Do you have any ideas of other things to steal parts off of?
     
  5. KF5FEI

    KF5FEI Ham Member QRZ Page

  6. KE5SWU

    KE5SWU Ham Member QRZ Page

  7. KF5FEI

    KF5FEI Ham Member QRZ Page

  8. KE5SWU

    KE5SWU Ham Member QRZ Page

    I have had good luck with this supplier too:
    https://www.surpluscenter.com/

    With all this talk I got to building again. I have no money for ham radio projects so I had to do some cleaning and found enough stuff to start working on it again. In the pictures you can see I took the broken AC motor out of an old rotator I had and built a mount for it to hold a DC stepper motor. I got it all wired up this morning and I am right now working on the code. I doubt the motor will have enough torque to do much but it will work for proof of concept and I can get a bigger motor later.
     
  9. KE7VZW

    KE7VZW Ham Member QRZ Page

    goldmine does rock. ticks me off though, i can throw a stone and hit them from my house (not really, but close), but they are adamant, no storefront, no will call, no exceptions :( So i have to pay tax AND shipping for pieces and parts from goldmine to travel 1 mile.

    Good thing circuitspecialists.com has a will call window

    check out circuitspecialists.com by the way, they have a lot of very unique stuff

    bgmicro is another good one if hasn't been mentioned yet

    edit: n/m, it has!

    living on the same city block as microchip is a real teaser also, makes me want to just go swimming in a vat of PICS. I tried seeing if they'd sell parts to me. that went over well. ahahhah
     
  10. KA6PUW

    KA6PUW Ham Member QRZ Page

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