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  1. #1
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    [WILL IT WORK?] Custom ATMEGA2560

    Hello. This is my first custom ATMEGA 2560 board.

    I need some advice whether this board work properly or not.

    AVR Newbie needs your help!



    This board contains these functions.



    1. Compatible with Arduino Mega 2560 Bootloader & Arduino IDE.

    2. Uploads compiled file using Arduino IDE through USB TYPE C port.

    3. Able to read & write files in Micro sd card

    4. Able to play music file through PAM8403 & Micro sd card.

    5. Speaker will be 5W

    6. Able to read data from MPU-6050

    7. Able to read Current Battery Voltage through Analog pin. ( PF0(ACD0) )

    8. Work with standalone 60V battery. ( Actually, It wil be around 48V )



    I've connected LEDs to uart ports to check data communication.



    Thanks.

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  2. #2
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    Re: [WILL IT WORK?] Custom ATMEGA2560

    Hi,

    I just had a quick view:

    * I´d run all from 3.3V. Currently I don´t see the need for 5V.
    * your XTAL circuit probably needs some capacitors.

    Schematic is only one part of a reliably working circuit.
    Also you need to have a suitable PCB layout with GND plane and EMI/EMC compliance.

    Klaus
    Please don´t contact me via PM, because there is no time to respond to them. No friend requests. Thank you.



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