Last time I looked on Amazon I could get five I2C 0.96″ OLED SSD1306 displays for $14.99 (ASIN B08QJ7BL3R), that’s $3.00 each.[1] Why are two microcontrollers being used? The I2C displays maybe?

Powered by an ATMega328p pulled out of an Arduino Nano, ... A basic user interface is provided by two tactile buttons on the PCB as well as an 128×32 I2C OLED display.

At this point, I got very discouraged, set this OLED in my electronics box, and forgot about it. A few months past and I gained some interest in making this OLED work. Therefore, I started to do some ...

Features of the Pixelduino Arduino OLED display include : – Processor : Atmel Atmega328P @ 3.3V / 8MHz – IO pins : 14 digital, 6 analog – Memory : 32K flash, 2K RAM ...

With it, via I2C, I could add an Arduino Pro Mini, and an I2C Oled Display and make a watch capable of having all this information, plus a pedometer (by analysing accelerometer data).

(lcd display to arduino wiring) Arduino Setup. For this experiment it is necessary to download and install the “Arduino I2C LCD” library. First of all, rename the existing “LiquidCrystal” library ...