I am working on a robot project. I am using a little Asus netbook as the main brain, and an Arduino for gathering data and interfacing with motors.
I am using a great program called Robot See. The program interfaces fine with an Arduino 328 - I found it is using com port 3. But I want to interface with a Mega. NO GO.
I can use the Arduino IDE and upload programs to the Mega. I can use the serial monitor with the Mega and Arduino IDE and it works. I found that it is connecting on com port 4. But when I connect it to the netbook and change the com port to 4 - it acts like there is no communication.
The netbook is using simple serial communication.
Any ideas why the Mega won't work when the 328 chip/module does?
cheers
Charles
Ciao,
are You sure that on the netbook Arduino serial is mapped as COM4 by the netbook?
Check the serial port number assigined on the operating system You use on the netbook.
Ciao,
Marco.
The netbook is using simple serial communication.
Does this means it's NOT using USB?
But when I connect it to the netbook and change the com port to 4
It won't necessarily be on the same port with a different computer.
Rob
I believe that com port 4 is mapped, because I can download programs to the Mega using the Arduino IDE. I can also use the IDE for serial communication back and forth via the USB cable.
I have it connected with a USB cable, and am using CMD messenger library on the Arduino side. The netbook side has serial send and receive commands much like the Arduino.
Still puzzled
Charles
I tested the netbook and the Mega shows on com port 4 - I can access the Mega on the netbook just fine. But when i run the communication program - no communication. The 328 chip/board works just fine....
puzzled......
I changed the baud rate from 115200 to 9600 and it worked without any other modification. No idea why the 328 Atmega chip worked at the higher rate,but the Mega 2560 did not????