Our Mini-Project was a Computer controlled vehicle. The user can control the vehicle using a GUI in the system. The GUI was coded in PyQt and it had PySerial code embedded in it for serial communication.
At the system side,
At the system side,
- CP2102 USB - UART Bridge.
- 433 MHz Transmitter.
At the vehicle side,- Microcontroller - Atmel Atmega8.
- L293D motor driver IC.
- 433 MHz Receiver.
- 12V Battery.
- 7805 Voltage regulator IC.
- DC Motors and other mechanical parts like chassis, wheels, etc.
Screenshot of the GUI:
Updated on: Sept 7, 2011
Source Files
C-Code for AVR AtMega8 Microcontroller - Download
PyQt4 Source for GUI - Download
Project Report pdf - Download The Github repo of Mini-Project is here - https://github.com/jithusunny/Mini-Project
20 comments:
Hi, Your project is really wonderful, Congrats :)
I've a ATMega8 chip, tried many ways to program it, but unfortunately none worked. Could you please tell me how you did it?
Thanks :)
Thanks Ershus :-)
For programming the AtMega chips, we need a programmer circuit. That can be either a parallel port/USB port programmer. I used a USB programmer from Extreme Electronics - http://store.extremeelectronics.co.in/USB-AVR-Programmer-v2.0.html
And that site has tutorials also.
Here is an article by Pramode Sir about playing with AtMega in GNU/Linux environment.
http://pramode.net/articles/lfy/atmega8/pramode.html
Thank you very much for the information :)
I think I will not be able to buy one from extremeelectronics. I'm trying to build a USB/Parallel port programmer circuit, tried many ways, none worked. The circuit diagram is missing in Promode sir's article. Could you show me the circuit of promode sir or ask him to upload?
Thanks again :)
Parallel port programmer - http://www.botskool.com/user-pages/tutorials/electronics/parallel-port-programmer-atmega-1632
Simpler circuit. If you have a parallel port, go for this.
USB Programmer - http://www.fischl.de/usbasp/
I have setup both successfully.
Thanks a lot, I will try to build the USB programmer according to the link you provided :) Greetings!
Hi Randipa,
The Vss in L293D is the supply voltage for the motor. 12V should be okay, max possible is 36V as per datasheet.
The rest, wherever you see 5V and GND, give a 5V potential difference.
You can get 5V from the 12V supply itself using a 7805 Voltage regulator IC.
Hey thanks for replying soon... :)
How do you connect vcc with the motor. SORRRRY>>
Hi Randipa,
The 5V supply can be connected to both Vcc of microcontroller and the 5V of Motor driver IC.
If you are talking about the Motor itself, it doesn't need any extra power. We are providing Vss.
Thanks a lot my stuffs arriving soon :) I can't wait till they come. one thing can you open the gui without the python programmer(without downloading a big file).
I dint get your question, you need python installed in your system to run that code.
Thanks for tour support!!! you rock>>>
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the top one didn't work!!
Hello jithu sunny!!
I haven't ever used python or anything( only visual basic) can you please tell me how to get the file running(gui)
thanks a lot jithu sunny..
I finally finished my circuits but I couldn't get the program running I downloaded python!!! helpp
@bob You have to first get PyQt4 - http://www.riverbankcomputing.com/software/pyqt/download
@Randipa - For running the program, you need PyQt4.
thanks jithu sunny , but it says no module named serial..
Hi Randipa,
Thats because you don't have the python module serial in your system!
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