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  1. fitek

    Android and Iphone what apps?

    Yeh I need a holder. I hadn't looked into it yet. I would really hate for my $500 Nexus One to go flying off the handlebars. The GPS does NOT require a data plan. However, the Google Map will not populate map tiles without access to data :) You can pre-cache map tiles by scrolling around...
  2. fitek

    CNN News is looking for Customized E-Bikes

    Me too. Wish I had an E-S bumper sticker for some of these photos :)
  3. fitek

    Android and Iphone what apps?

    That would be a simple change I think. The whole app suffers from too many clicks to get anything done. I have used MyTracks exclusively for hikes, and I just want to hit a button to start recording/stop, and the map is only marginally useful because there is usually no data connection in the...
  4. fitek

    Problem with ECityPower/BMSBattery 12 FET controller

    Well, bzhwindtalker, if you're ever near San Francisco I owe you a beer. Or, if I ever make it to Brittany... In fact, I tried the controller with my bench supply and it does indeed work. I'm going to try finely tuning the voltage and see where it stops working.
  5. fitek

    Problem with ECityPower/BMSBattery 12 FET controller

    I did not change the voltage. The label says "36v/48v". I am using a 36v Makita pack (40v actual).
  6. fitek

    Problem with ECityPower/BMSBattery 12 FET controller

    DAND214, I did try just the throttle and power wires, but no signs of life at all. I am afraid I may have hooked up two of the wrong wires trying to get the train mode to work. I was running this controller with a Hyperion RC motor for several months, and everything was good. Then my tandem...
  7. fitek

    CNN News is looking for Customized E-Bikes

    In before the lock! I posted my tandem and folder. Thanks for the heads up! After all the time spent alone in the garage, it's nice to tell non-Endless-Sphere members about our creations :)
  8. fitek

    Problem with ECityPower/BMSBattery 12 FET controller

    The uC on the board is a STM8S207S6T6C in LQFP44 package (11 pins per side). FETs are p75nf75 Datasheet available here: http://www.st.com/stonline/products/literature/ds/14733/stm8s207c8.pdf The LED is definitely flashing 8 short pulses with the throttle disconnected. With the throttle...
  9. fitek

    Hub motor makes squealing noise after reassembly

    I fixed this motor. I just whacked it good on the other side. But the problem was simpler. It has a rubber seal on one side of the axle, and I simply did not put it back together correctly. The rubber was rubbing. All good now, except I blew the controller on the bike after 4 miles, for the...
  10. fitek

    Android and Iphone what apps?

    I use MyTracks but I find the interface is rather painful, though it does work. I've been mucking about with the source code for a couple weeks to see if I can make it more user friendly (like a big green "GO" button and "STOP" for recording, rather than fiddling with the menu button and then...
  11. fitek

    Problem with ECityPower/BMSBattery 12 FET controller

    The throttle works fine-- I have another controller and motor on the bench which I can control w/ the throttle (although one phase isn't working on that controller)...
  12. fitek

    Problem with ECityPower/BMSBattery 12 FET controller

    Hi folks, I've been using the 12 FET BMSBattery controller (the one w/out cruise control) for a while. However, I swapped it out of the bike it was on to test a motor, and now I can't get anything out of it. There's the normal "pop" when I attach the andersens. I get 5V on the hall power...
  13. fitek

    Serial Hybrid Electric Bicycle "Finished"

    Just to update the links for this creation, http://hybridmojo.com/evolution/serial-hybrid/short-wheelbase-serial-hybrid/ http://hybridmojo.com/evolution/serial-hybrid/full-suspension-short-wheelbase/ http://hybridmojo.com/evolution/serial-hybrid/short-wheelbase-tandem/ The bike has had one...
  14. fitek

    Generating electricity

    Chris, I don't think I'd have the patience to make a chain ring with an angle grinder, hehe. I like the idea though! I used the biggest bicycle chain ring I could find, which was not that big-- 48T, or something like that. Tom Kabat from WoodenBikes.com has been able to find large sprockets...
  15. fitek

    Generating electricity

    Hey folks, the "guy in Switzerland" is actually two people. Their names escape me at the moment, but at least one was a professor and they for a time had a business to commercialize the idea. I migrated my website, you can find the serial hybrids here...
  16. fitek

    hybridmojo

    Hey guys, I assume the bike is not street legal... though who will notice... It is pushing two horsepower, and the limit in Cali is one horsepower. Now, IIRC, these limits apply to production bicycles, which this is not, so I'm not sure what to think. Regardless, when I spoke with insurance...
  17. fitek

    Hyperion RC Motor Hall Sensor Mounting

    They only have 3 controllers: 6,9, and 12 mosfet. I have the 12 mosfet. It's pretty pathetic when run sensorless, but with the hall sensors added it has way more torque than anyone can really handle (mind you, this is with 6 inch wheel). I'm going to try and mount it on a larger scooter.
  18. fitek

    Hyperion RC Motor Hall Sensor Mounting

    Just an update but the Hyperion works fine with a BMS Battery controller.
  19. fitek

    My "new" ebike

    It's been two years since your post but FYI there are three wires heading to the motor for power; and 5 for the hall sensors. You can try attaching a sensorless controller and seeing if it will run. Or just take the case off. It's really easy on this motor. You need a screw driver and two...
  20. fitek

    Downtube with Ridiculous Battery Pack

    E-S member Ryan brought his 5305 powered bike over to troubleshoot the motor. We pulled it open and the insulation is gone off one area of windings. So we slapped his 72v20ah of batteries onto my Downtube. It was a little unbalanced with all that weight on the rear rack. To their credit...
  21. fitek

    Who's going to the Maker Faire? (San Mateo, CA - May 22&23)

    My camera was on the fritz and we accidentally deleted our video of the event (and some vacation footage, grr). But this pic came out. This was the goofiest tie I own.
  22. fitek

    Who's going to the Maker Faire? (San Mateo, CA - May 22&23)

    Hey, thanks Ryan for the recognition :) I was too busy getting ready to even visit E-S in the weeks before the Faire! Man, it takes forever to get an exhibit together. The weather doesn't make it easy, everything has to be super wind proof. I saran wrapped all my signs because I was tired...
  23. fitek

    Ecrazyman Hall Sensor Connector

    Sorry if this has been answered elsewhere. Tried a couple quick searches and didn't find what I was looking for. Anyone know what the Ecrazyman (and BMSBattery) hall sensor connector is called? Where can I buy both ends? Up until now, I've been cutting the connectors off and replacing with...
  24. fitek

    BMSBattery/ECityPower Experience

    The weight of this motor is a big disappointment. I really need a lightweight motor for the Maker Faire, and now I have to scramble. I did try the controller out that with my Hyperion RC motor, and it works, no weird behavior like the v1 ecrazyman (cutting out at high throttle, rough...
  25. fitek

    Why Donate??

    I'm at work and don't have time to read through 9 pages, but may I suggest that if there is disagreement on how money is spent in the ES fund, a good start is transparency: just post how much money goes in and how much goes out quarterly or something. People can still say they dislike the idea...
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