This voltage can be varied as per the microcontroller requirement. The total voltage supply for the Arduino Due is around 7-12V. The voltage power for the processor of the Arduino Mega is around 5V. The voltage power for the processor of the Arduino Due is around 3.3V. The Arduino Mega board uses the ATmega 16MHz as the processor in it. The Arduino Due board uses the ARMSAM3X8E 16MHz as the processor in it. Let us look at the comparison table of Arduino Due vs Mega. The Arduino due considered the most expensive Arduino product compared to other products. The other major difference between both boards is the price of the board.The Arduino Mega board does not guarantee software compatibility. The Arduino due board guarantees software compatibility and the processing of instructions in it. The other key difference between Arduino due board and Arduino mega board is software compatibility.The Arduino due board is not compatible with other boards. Another difference between the Arduino Due board and Arduino mega board is shield compatibility.This board also includes an ICSP header, a USB connection, four hardware serial ports, and one rest button. The board also contains sixteen analog inputs and one power jack compiled in it. The Arduino due board also contains an 84MHz clock, SPI header, two TWI, one power jack, reset button, JTAG header, and one erase button in it. This board also contains four hardware serial ports and a connection for the USB OTG cable.In the Arduino Mega board, there is no such support. The support for the Android ADK is present in the Arduino Due board. The other major difference between the two Arduino products is support for the Android ADK support.The size of the internal flash memory for the Arduino due board is around 512 kb. The Arduino due board can store larger data in the internal flash memory. The other difference between Arduino due board and Arduino mega board is the memory size.The processor’s speed for the Arduino due board is much faster than the Arduino mega board. One of the major key differences between the Arduino Due board and the Arduino mega board is the processor speed used in the board.I'm not sure if I've just wired something wrong, but my guess is that it's a software problem.Key Differences between Arduino Due vs Megaįollowing are the key differences between Arduino Due vs Mega: Since it wasn't working, I tried switching the power to the Mega's 5V connection, since I read that the lights should still work but would just be dim. To give the matrix power, I first tried connecting 3 AA batteries in series to achieve 4.5 volts. #define PIN_OTHER_SPI_nCS 1, per this thread? Arduino mega using dmd library (SOLVED) -Freetronics Forum I am maybe also supposed to change #define PIN_OTHER_SPI_nCS from 10 to 1, i.e. I'm basically adapting this guide for the Uno to the Mega: LED Display Board using P10 LED Matrix Display and Arduinoīased on several threads, I've modified the DMD.h file to change to pins 51 and 52, as I understand this has something to do with the Mega using different pins for the SPI feature: Purchased a P10 32x16 PMD to use with my Mega but can't seem to get the software or hardware figured out, not sure which. Just throwing this out there in case I get lucky.
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