It became necessary to create a filament counter for your 3d printer. During the writing of the program, I created a new multiplication node. I used the hall sensor and the ssd1306 LED display on the i2c bus .

Arduino library for OLED displays driven by the SSD1306 chip. Communication via I2C. Wraps Adafruit_SSD1306 (https://github.com/adafruit/Adafruit_SSD1306).

two line oled ssd1306 for working with sensors etc

Nodes to drive SD1306-based monochrome LCDs with I2C interface.