Hi so I am trying to use two arduino mega boards and right now I have them connected through TX3 and RX3 when I try uploading the simple program to get it to read I am just getting a ton of errors. Not really sure if I am doing this correctly any advice on how to set this up would be great.
when I try uploading the simple program to get it to read I am just getting a ton of errors.
What simple program? What errors? How did you weigh them?
Did you connect the grounds?
I just uploaded the codes that I am using and I have them both connected to my laptop using the usb to mini ports for both. I have them connected directly to each through the tx3 and rx3 ports and a ground port I disconnect one from my laptop upload it. Then disconnect the one I just uploaded and connect other upload switched ports and I get nothing. I also uploaded it while keeping them both connected. Ports using are 14 and 15
sketch_oct19a.ino (733 Bytes)
sketch_oct19b.ino (706 Bytes)
Please do us all a favour and post the programs here to avoid the need for them to be downloaded.
I have them connected directly to each through the tx3 and rx3 ports and a ground port
Then why are you trying to talk to them through I2C?
Have you installed the Wire Master library?