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UPEW 2010: Project Help Request List? — Parallax Forums

UPEW 2010: Project Help Request List?

WBA ConsultingWBA Consulting Posts: 2,935
edited 2010-06-23 23:20 in Propeller 1
While at UPEW, I will have a few projects that I will be hunting down experts to pick their brains. I thought maybe a list could be created of anyone's projects in case those that are able to help would like to focus their "free time" during the event. Maybe we can put a whiteboard somewhere at the event so people could put up their name and requests? Anyhow, to kick this off, here are my two projects that I will need help on:

1) Full duplex serial usage with a Symbol LS1220 serial barcode scanner for RX and a Zebra serial printer for TX
2) Demystifying I2C for a newbie so I can work with Sensirion's new SHT21 sensor that uses true I2C for communication. I have samples built up on PCBs and would love to be able to publish an object for the SHT21 before it's publicly released.

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Andrew Williams
WBA Consulting
WBA-TH1M Sensirion SHT11 Module
My Prop projects: Reverse Geo-Cache Box, Custom Metronome, Micro Plunge Logger

Comments

  • Oldbitcollector (Jeff)Oldbitcollector (Jeff) Posts: 8,091
    edited 2010-06-10 17:59
    Any stingray guys bringing toys?

    Want to share code and ideas?

    OBC

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  • rpdbrpdb Posts: 101
    edited 2010-06-12 05:06
    I'm planning to bring "piggyBot", based on the MSR1. I would be grateful to share code and ideas and brainstorm.

    I just got Harprits' book in the mail today(Programming the Propeller with Spin)!!! I just thumbed through and found great stuff in there about motor control and PID feedback and quadrature encoders. Exactly what I am working on right now.

    I also just ordered an SPT200 pan and tilt from ServoCity with a couple HS645 servos like what you were talking about on the other thread. We will have to share notes.
  • Timothy D. SwieterTimothy D. Swieter Posts: 1,613
    edited 2010-06-12 14:33
    booo-hooo - I wish I could come to the expos this year. Was there an expo in August? I'd love to help people out if I make it.

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    Timothy D. Swieter, P.E.
    www.brilldea.com - Prop Blade, LED Painter, RGB LEDs, 3.0" 16:9 LCD Composite video display, eProto for SunSPOT, PropNET, PolkaDOT-51
    www.tdswieter.com
  • StefanL38StefanL38 Posts: 2,292
    edited 2010-06-13 05:21
    about the scanner part

    did a search for the manual at symbol

    search LS1220 at symbol

    searchresult

    on page 9-22 there start the RS232 options
    simply scan the barcodes to configure the scanner to

    - baudrate
    - parity none
    - hardware handshaking no
    - software handshaking no
    - one stopbit

    use a PC-terminal-software to test the configuration of the scanner
    DON'T use the propeller right now but the PC as the PC and a terminalsoftware is known as working properly

    best regards

    Stefan
  • WBA ConsultingWBA Consulting Posts: 2,935
    edited 2010-06-17 16:12
    Stefan, Thanks for the info. I actually have all of the docs/specs etc for the LS1220 as well as the ZPL language and specs for communicating with the Zebra printer. My struggle with this particular project is understanding how to properly utilize the serial object and get an initial program working. Much of my struggle is probably due to not focusing a chunk of time towards it, and so some of my time at UPEW will be spent on this project.

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    Andrew Williams
    WBA Consulting
    WBA-TH1M Sensirion SHT11 Module
    My Prop projects: Reverse Geo-Cache Box, Custom Metronome, Micro Plunge Logger
  • Oldbitcollector (Jeff)Oldbitcollector (Jeff) Posts: 8,091
    edited 2010-06-18 15:13
    Just won this:

    cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250649211954&ssPageName=ADME:B:EOIBSA:US:1123#ht_603wt_930

    Hopefully it'll arrived just in time to pack it in the suitcase and bring it with me for Saturday night.

    Rumor has it that this has RX/TX points on the board in the base unit.

    OBC

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    Visit the: PROPELLERPOWERED SIG forum kindly hosted by Savage Circuits.
  • jazzedjazzed Posts: 11,803
    edited 2010-06-18 15:34
    Star Wars Trainer Propeller input device oh boy!
    Can't wait to see that in action for moving a mouse cursor.
    Is the interface physical or mental?

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  • Oldbitcollector (Jeff)Oldbitcollector (Jeff) Posts: 8,091
    edited 2010-06-18 18:10
    jazzed said...
    Star Wars Trainer Propeller input device oh boy!
    Can't wait to see that in action for moving a mouse cursor.
    Is the interface physical or mental?

    According to the box, mental.. Gramps and I are in a little debate on if this is real or not. [noparse]:)[/noparse]

    I'm expecting simple step EEG sensor myself.

    OBC

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  • Ken GraceyKen Gracey Posts: 7,401
    edited 2010-06-21 17:25
    I'm also a person who is looking for some UPEW project collaboration. You'd think I already know everything about programming the Propeller, but I don't! For now, my projects are entirely about self-education.

    The current project consists of two robots, each with 10 Ping sensors. I'll have the whole thing set up in the conference room attached to the main UPEW meeting space. These robots both have Xbee modules to send data back to a base station which displays the data on a VGA. Additionally, a hand-held controller for each robot uses a switch to go between autonomous/remote control mode. Everything functions according to my design goal but my coding techniques are primitive and sloppy. Therefore, I'd like to address one (1) piece of the code that really needs improvement: the autonomous roaming code with Ping sensors. Here's the basic idea:

    1. From a stopped position, robot in autonomous mode decides to move forward or backward. <= done, works well
    2. Read the five (5) Ping sensors and generate a basic map of obstacle location and proximity. Replace my clunky IF statements with a few proportional control calculations which allows the robot to move in a more fluid fashion. <= this is where I need help. There's got to be a more elegant way of achieving my goal than the present approach.

    I'm looking for some help on Saturday evening to improve the navigation code.

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    Ken Gracey
    Parallax Inc.

    Follow me at http://twitter.com/ParallaxKen for some insider news.
  • GranzGranz Posts: 179
    edited 2010-06-21 22:51
    Timothy D. Swieter said...
    booo-hooo - I wish I could come to the expos this year. Was there an expo in August? I'd love to help people out if I make it.

    Tim,

    UPENE (Norwalk, OH) is scheduled for the end of August - http://forums.parallax.com/showthread.php?p=896865

    I will be there, hope to see you then.

    Art
  • Timothy D. SwieterTimothy D. Swieter Posts: 1,613
    edited 2010-06-21 22:53
    Granz - ah yes, I see that now. Thank you.

    I'm not positive I will be there. I am hoping, but many factors have to align for it to happen. Perhaps I will attend virtually.

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    Timothy D. Swieter, P.E.
    www.brilldea.com - Prop Blade, LED Painter, RGB LEDs, 3.0" 16:9 LCD Composite video display, eProto for SunSPOT, PropNET, PolkaDOT-51
    www.tdswieter.com
  • GranzGranz Posts: 179
    edited 2010-06-22 00:54
    Timothy D. Swieter said...
    Granz - ah yes, I see that now. Thank you.

    I'm not positive I will be there. I am hoping, but many factors have to align for it to happen. Perhaps I will attend virtually.

    If you are able to make it, stop by and introduce yourself.

    Art
  • WBA ConsultingWBA Consulting Posts: 2,935
    edited 2010-06-22 06:37
    Ken/OBC, I can borrow this bulletin display from work for the expo if you think it can be used. It has four sides, so we could do something like:

    Side 1) Speaker list and Expo Agenda
    Side 2) Help request list and exhibitor map
    Side 3) ?
    Side 4) ?

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    Andrew Williams
    WBA Consulting
    PowerTwig Dual Output Power Supply Module
    My Prop projects: Reverse Geo-Cache Box, Custom Metronome, Micro Plunge Logger
    cork-bulletin-display.JPG
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  • W9GFOW9GFO Posts: 4,010
    edited 2010-06-23 23:20
    I haven't had as much time as I'd like to get my robot ready, I think I'll bring it anyway in case I find the time or the help to finish it's program.

    It is Propeller powered and features two HB-25 motor drivers, two Position Controllers, a 16 button keypad, 2 x 16 LCD display and a Micro SD card. It weighs about 150 lbs.

    I have a lot of plans for it but the first thing I wanted to do was to be able to use the keypad to enter a series of commands for it to follow - just like a Big Trak.

    Anybody interested in helping out? The "Cat Door" project that I have been working on with my boys has taken longer than I planned for.

    Rich H

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    The Simple Servo Tester, a kit from Gadget Gangster.
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