Shop OBEX P1 Docs P2 Docs Learn Events
Penguin Resources - Page 2 — Parallax Forums

Penguin Resources

2»

Comments

  • hover1hover1 Posts: 1,929
    edited 2009-08-21 20:02
    Great looking·Website! Congrats!

    Jim
    vrossi said...
    The Penguin Robot Society site, where you can find precious source code and various documentation about the Penguin Robot, has now a dedicated web domain:
    www.p-robot.com

    All the info previously stored under www.robotinfo.net/penguin has been migrated there, but those old pages are still available, in order to avoid missing links and to allow people to find it through old search engines indexes, and they will continue to stay there for a long time.

    However, I believe that Penguin Robot deserves a dedicated domain, easier to type and to remember. Any new development will be posted under this new www.p-robot.com address. The site has also been redesigned, and I hope you like it.

    Please let me know about any missing link or other error you might find in it.
  • mark14mark14 Posts: 2
    edited 2009-09-10 06:48
    There is a bug in Penguin-ServoCalibration-v1.1.bpx which means the Walking option doesn't work properly if the tilt range is >255.
    I emailed KG yesterday with the fix, Indirect is used as a byte instead of 'Word Indirect' in the first block of the DO/LOOP.
    Also when printing the screen, printing stops at $555 whereas it should end at $559.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Xbox 360 Controllers
  • HumanoidoHumanoido Posts: 5,770
    edited 2010-03-16 06:40
    Penguin Rechargeable Batteries

    Switch your Penguin Robot over to Rechargeable Batteries
    and Enable a Renewable Power Source!


    The Penguin is a great robot with many well designed features.
    But to keep it from gathering dust, you need to feed it a good
    food diet of fresh batteries. No, not leftovers. No, not those
    cheap mixes you're thinking of with one new battery and one
    old battery. You must have fresh, fully optimal, batteries or
    Penguin will not have enough energy to walk. You see, the
    servos require a lot of instantaneous power, unlike the mother-
    board, display, compass, infrared transmitters and receiver,
    etc. So, unless you want to operate your Penguin without
    motion, use new batteries.

    After a couple hours of use, you'll need a new set of batteries.
    Of course, this depends on how much motion is programmed.
    Batteries could last far longer if you're using sound, display,
    compass or some other features not related to the servos. To
    help matters along with the servo, please do the upgrade with
    the electrolytic capacitor on the aux5 port as was previously
    described. It will help prevent resets and enable the servos
    to start-up more efficiently.

    More information here.

    For tests, I am now using a set of rechargeable batteries. The
    code name is ICR123A. The batteries with charger were purchased
    in China at a cost of US$12. Batteries are rated at 3 volts each and
    take about 2 hours to recharge. The charger has a multicolored LED
    to indicate charge status. The Lithium Ion battery is a high energy
    release battery typically used in camera photo flash applications.
    Some texts say the recharge version has a little less power than
    the non recharge version but I have not noticed any deviation from
    perfect performance.

    en.wikipedia.org/wiki/Lithium_iron_phosphate_battery

    However, it's a known fact that if you're programming for long
    periods of time, you may want to build a well regulated battery
    eliminator.

    These rechargeable batteries have already had a series of tests
    with Penguin robot and performance was outstanding.

    attachment.php?attachmentid=68677
    This set of batteries and charger has enabled a
    renewable source of power for Penguin.



    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Humanoido
    296 x 297 - 16K
  • HumanoidoHumanoido Posts: 5,770
    edited 2010-03-17 19:04
    Battery Data

    Battery Operating Range

    This battery data is found in the comments from the BAT Penguin code
    downloaded at the link. It gives a guide for battery operation and what
    constitutes too low voltage.

    www.p-robot.com/index.php/other.html

    Download the zip file superhero.

    humanoido

    ' Battery Threshold
    ' -----------------
    ' Generally, nominal CR123A battery voltages above 5-volts are
    ' acceptible for normal operating. Below 5-volts and the batteries
    ' should be immediately replaced.
    
    ' Battery Too Low
    ' ---------------
    ' If a bad battery set is placed into Penguin, and if the voltage is
    ' very low, around 4.8 volts or less, previously loaded programs will
    ' fail.
    
    ' -------------------------------------------------------
    ' rc  volts  observations
    ' -------------------------------------------------------
    ' 103  6.00  rc samples can vary on different penguins
    ' 114  5.00  below 5 volts and replace battery
    ' 121  4.60  program errors, fails, erratic behavior
    '            program won't load properly, display fails
    ' 126  4.43  battery fluctuating 4.45, 4,44, 4.43
    '            program going crazy, recyles the reset
    '            cannot reload program, no basic stamps found
    '            led is still on and dim
    '            turn off and on, still cannot find stamp
    ' 130  4.00
    '      3.90  No useable serial ports found
    '      3.85  USB device not recognized
    '      3.49  LED very dim
    '      3.66  no useable serial ports found, led dim
    
  • HumanoidoHumanoido Posts: 5,770
    edited 2010-03-23 05:42
    Penguin Robot Society Web Site
    New Interesting Updates

    Changes and updates to the Penguin Robot Society' web sites
    now include a redirection link at the top of the old web page,
    and the new site is updated with new additions to include a new
    magazine, and additional BASIC Stamp, Propeller, and Penguin
    projects!

    www.p-robot.com/

    the old site, for reference
    http://www.robotinfo.net/penguin/

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    humanoido
    *Stamp SEED Supercomputer *Basic Stamp Supercomputer *TriCore Stamp Supercomputer
    *Minuscule Stamp Supercomputer *Tiny Stamp Supercomputer *Penguin with 12 Brains
    *BASIC Stamp Supercomputing Book *Three Dimensional Computer *StampOne News!
    *Penguin Tech *Penguin Robot Society *Toddler Humanoid Robot Project
    *Ultimate List Prop Languages *Prop-a-Lot *Propalot Stuff *Prop SC Computer
    *Prop IB Hypercomputer - under development *Hobby Space Program

    Post Edited (humanoido) : 3/23/2010 6:06:14 AM GMT
  • RambomanRamboman Posts: 101
    edited 2010-04-13 15:50
    Why don't you adapt a pair off 1100mAh a123 batteries to the back of penguin?
  • HumanoidoHumanoido Posts: 5,770
    edited 2010-06-03 06:41
    Stock CR123A Battery Specs

    # Battery Technology: Lithium (Single Use)
    # Nominal Capacity: 1400mAh (when discharged at 100 Ohm To 2.0V)
    # Current: 0.5000A
    # Diameter: 17.0mm
    # Height: 33.4mm
    # Voltage: 3.00V
    # Weight: 17.0g

    www.batteryjunction.com/rayrl123a.html

    Note: Ramboman, you probably would not want to do that unless it's a rechargeable. The stock Rayovac CR123A Lithium Photo battery supplied by Parallax has a higher rating (1400mAh).

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    humanoido
    *Stamp SEED Supercomputer *Basic Stamp Supercomputer *TriCore Stamp Supercomputer
    *Minuscule Stamp Supercomputer *Tiny Stamp Supercomputer *Penguin with 12 Brains
    *BASIC Stamp Supercomputing Book *Three Dimensional Computer *StampOne News!
    *Penguin Tech *Penguin Robot Society *Toddler Humanoid Robot Project
    *Ultimate List Prop Languages *Prop-a-Lot *Propalot Stuff *Prop SC Computer
    *Prop IB Hypercomputer - under development *Hobby Space Program

    Post Edited (humanoido) : 6/3/2010 6:46:46 AM GMT
  • RambomanRamboman Posts: 101
    edited 2010-06-03 14:13
    a123 ARE rechargeable LiFe cells...
  • Peter KG6LSEPeter KG6LSE Posts: 1,383
    edited 2010-09-08 20:01
    Aones cells need a rather complex charger to not kill the cells .
    NOTE : LiFe so far is considered to be the most stable Li-xxx cells on the market yet any Li based cell can be ruined from a junky charger .
    most just blow up.:jumpin:
    I have yet to see A123 ( Aone systems) sell single cells to individuals.
    the only way I have found to get a resonble amount of them is in DeWalt batt packs .
  • RambomanRamboman Posts: 101
    edited 2011-01-31 03:20
    Got them from Hobby City... charger too...
  • HumanoidoHumanoido Posts: 5,770
    edited 2011-02-05 05:42
    Ramboman wrote: »
    Got them from Hobby City... charger too...
    What is the voltage of each cell? Can you list the specs? What is the cost? Did you try these on Penguin? How long do they last?
Sign In or Register to comment.