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Thread: ARP - Affordable USB Arduino/Freeduino based Boards

  1. #41
    Senior Member Cyborg sudarshan's Avatar
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    Smile add two microcontroller

    hi
    i hope you could add two microcontroller to the board
    so that it will have double of everything.
    the processing power will increase and two seperate programs processing different things.
    also they can communicate with each other through UART
    BY
    Sudarshan Anbazhagan,
    SuperBotics MultiTech Pvt. Ltd.

    http://www.superbotics.com
    http://www.getahost.in

  2. #42
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    For USB Nothing beats PIC18F2550/PIC18F4550 (in 8 bit section). The cost is NOT as high as you say Vikas, NOT at all 3 fold of ATmega32. I thought I would put some USB Project in my website but USB is way too complex for average Indian Students.

    Other wise go to LPC2148 from NXP 32bit for serious USB projects.
    Avinash Gupta
    ************
    www.eXtremeElectronics.co.in

  3. #43
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    @Sudarshan

    My boy ever worked with threads in any modern OS. Thread synchronization is too complex thing. Even experience programmer try to avoid threads. They require complex data structures.

    The thing you are talking running two different program in 2 diff CPU and synchronizing them is very complex.
    Avinash Gupta
    ************
    www.eXtremeElectronics.co.in

  4. #44
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    @Sudarshan

    My boy ever worked with threads in any modern OS. Thread synchronization is too complex thing. Even experience programmer try to avoid threads. They require complex data structures.

    The thing you are talking running two different program in 2 diff CPU and synchronizing them is very complex.
    Avinash Gupta
    ************
    www.eXtremeElectronics.co.in

  5. #45
    Senior Member Cyborg sudarshan's Avatar
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    no i dont have any experience with threads.
    i said this because a robot may have many things like lcds,motors,leds aand many more so only i said.
    more no of io more functions
    BY
    Sudarshan Anbazhagan,
    SuperBotics MultiTech Pvt. Ltd.

    http://www.superbotics.com
    http://www.getahost.in

  6. #46
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    @Sudarshan,

    The Servo Article you asked is ready !!!
    Read It via link below.
    http://extremeelectronics.co.in/avr-...crocontroller/
    Avinash Gupta
    ************
    www.eXtremeElectronics.co.in

  7. #47
    Senior Member Cyborg sudarshan's Avatar
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    thanks avinash_g the article was really good.i have also subscribed to your site.
    really good explaination about servos that i wished to get on net for a long time.
    thank you again
    BY
    Sudarshan Anbazhagan,
    SuperBotics MultiTech Pvt. Ltd.

    http://www.superbotics.com
    http://www.getahost.in

  8. #48

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    Hi,
    Firstly the hoarding stuff I was talking about was for 1960 era where there were valve radios and stuff and electronics was very bulky (so no air mail service like today!!!).

    Well the worst part is I too like AVR as I moved from PIC(16F84A) to 8051 to PICs(16F72A) and then to AVR ; going back to PICs is inconvinent as they burn a hole in my pocket. I remember a simple pic 16F84A costed me 150 bucks and in comparision AT89S52 with similar features was for 45 Bucks . So for me Atmega8 was good as it costed me around 50 buck and on top the C compiler was free. USBASP made Programming a breeze , was cheap and fun. No crystals or resonators or for that matter RC clock generator was needed one chip solutiuon to all problems is atmega8.

    Don't really know if AVRs will be back.

    Asimov

  9. #49
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    Quote Originally Posted by asimov_18 View Post
    Don't really know if AVRs will be back.
    This is getting too sentimental.

    You talk as if they are gone. They are still available albeit at a higher cost. Of course, there are some shortages, but it is just a matter of time before things improve.
    --
    Mohit Mahajan,
    www.BioZen.co.in

  10. #50
    Junior Member Newbie Blacksteel's Avatar
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    Quote Originally Posted by MohitM View Post
    Time to switch over to PICs, maybe?!
    Already on it!!! Result of this shortage fiasco: My PIC chips are out of the junk box, my PICBASIC PRO coding skills are increasing and it's been cool so far.
    ______________________
    Arvind

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