Title: Requeried: the hex code of zzaag3 balancing scooter Post by: Sun_rise_pt on March 17, 2013, 02:26:54 14:26 Hi friends.
Anybody have the the hex code of zzaag3 balancing scooter? And the settings of Atmega32 fuses? Regards. Title: Re: Requeried: the hex code of zzaag3 balancing scooter Post by: PaulC on March 17, 2013, 10:28:18 22:28 Found this Site ( GooGle ) ...
Meta is my self-balancing ride-on robot. Here's the first video (5.5MB, DivX AVI) of it with myself and Cameron riding (27/Aug/2006). Someone at linuxDOTconfDOTau took a video of Linus Torvalds riding it. For the curious, the source is available here. It builds with avr-gcc and runs on the Atmel ATMega16 8-bit microcontroller which is on the MOB board. The code is based on Trevor Blackwell's balancing algorithm and code (see his Building a Balancing Scooter page). I did a presentation at LCA2007 on how to build your own. You can get the slides here or view the video of the presentation here. Hardware Two second-hand 24V wheelchair motors, obtained with gearbox, hub, wheel, and tyre attached 2x OSMC boards (Open Source Motor Controller) from Robot Power 1x MOB board (Modular OSMC Brain) from Robot Power 1x IMU Combo Board - ADXL203/ADXRS401 gyro/accelerometer from Spark Fun Electronics 6x 12V 7AH sealed lead-acid batteries Misc hardware from Dick Smith Electronics, Jaycar, Aztronics More Hardware I'm indebted to Paul Schulz for assisting me to build Meta. The design is trivial (bolt motors onto pieces of wood with metal brackets), but hardware isn't my thing! 2x pieces of wood 1x broomstick Misc hardware from Bunnings Gaffer Tape Title: Re: Requeried: the hex code of zzaag3 balancing scooter Post by: Sun_rise_pt on March 22, 2013, 08:30:18 20:30 Very good your Balancing scooter, PaulC.
"My beach" are the Basic and the assembler of MCU´s based on 51 family achitecture. I've a old hobby: The electric vehicles. And some days later redesigning the ZZAAG3 PCB's with two separated boards. One for control with a 40 pin (DIL) Atmega32-16. The second with the 2 motor power drivers. The IMU (gyro - IDG500 & accel ADXL325 are a cheap (maade in China) 5 DOF board). The basis for my personalised PCB layouts are a "gyropode" article published on french magazine Electronique Pratique. After the AVR firmware programation with the necessary fuse presets, specially the external xtal oscillator, I saw a error: Only the red LED flashing and nothing more... That's the reason I´ve posted the help request here... Well... With some research on the Bascom AVR and the literature of Elektor Weellie balancing scooter I have discovered the error!!! Baaaaaaaa!!! My attention!... ;D Easy: The E. P. magazine have the bad indication of 5V on the AVR - ARef ( ref. for ADC's ). With 3V the problem remain corrected... Thanks! Title: Re: Requeried: the hex code of zzaag3 balancing scooter Post by: PaulC on March 22, 2013, 10:56:42 22:56 would be interesting to see what you came up with to complete your project, or ideas that you can give us, i for one would be very much interested, if you don't mind sharing..
Title: Re: Requeried: the hex code of zzaag3 balancing scooter Post by: Sun_rise_pt on March 26, 2013, 08:31:27 20:31 Ok.
I Think next weekend have some "free" time for the next steps. On past month I built a "wide use" chassis with 2 24V/250W (with chain) (from surplus chineese scooters) to my following tests. Tthe tests with my previous work - the balancing scooter published by Circuit Cellar magazine - have not very good results: Too instability by horizontal reference lost after some time... |