Download Arduino Uno Sda Scl Pins Gif. As a reference the table below shows where twi pins are located on various arduino boards. And the documentation says a4 and a5 pins can also be sda/scl.

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I am not able to find this info anywhere but regarding it is a i2c protocol it does make sense to be a ttl technology. At i needed to change the sda and scl pins of the wire (i2c) module. The two pins which you need for the i2c communication are the following scl (serial clock):

I am not able to find this info anywhere but regarding it is a i2c protocol it does make sense to be a ttl technology.

As a reference the table below shows where twi pins are located on various arduino boards. Please make sure that you have the sda and scl pins of the oled display wired correctly. The model we're using here has only four pins and communicates with the arduino using i2c communication protocol. The oled display provides an easy and inexpensive way to.