36+ Arduino Mega I2C Pins
Background. We are not using arduino connectors, so those connector pin numbers are not needed here. Finally, on the arduino mega, the pins 20 and 21 are the ones to be used.
I2c Lcd On Arduino Stunningly Easily Setup And Control from www.make-it.ca
We are not using arduino connectors, so those connector pin numbers are not needed here. The 2 first pins side to usb connector are sda/scl according to documentation. Here one arduino will act as master and another one will act as slave.
I hope the above small pointers can sharpen your already great article, which was indeed very very helpful.
I hope the above small pointers can sharpen your already great article, which was indeed very very helpful. Pin21 (no label on the pcb front, only visible from the side). Connection between master and slave to send and receive data. You can use either pins:
