Hi - I'm kind of new to i2c but I have a need to have 2 Arduinos talk to each other so I was thinking of using the i2c. Wired up the master and slave and loaded the example sketches and all works fine. I then wanted to add a oled screen to the slave for some features. The screen seems to work but …

Life is simpler if one Arduino is always Master. And the other is always a Slave. The Master "speaks" to the Slave whenever the she wants. The Slave does as he is told. The Master can periodically ask the Slave if the Slave wants to talk to her. The OLED is always going to be a Slave. The …

Adafruit_SSD1306 and Wire serial communication

Other Hardware Displays

darumsdad November 26, 2021, 7:50pm 3

Thanks .. so I take it the way the oled lib works it needs to control the bus as a master .. so there is no way to make this work ..

Topic		Replies	Views
Interfacing two arduino's Interfacing	7	3088	May 6, 2021
Whoops, I2C Slave & OLED via I2C problem... General Guidance	4	1511	May 5, 2021
I2C Display Sensor Communication Displays	2	2264	May 6, 2021
Help two OLED screens, they work but can't change between the two Displays	6	2212	May 6, 2021
One LCD and two Arduinos - how? Displays	7	4970	May 6, 2021

Adafruit_SSD1306 and Wire serial communication

Related topics