The OLED library used was Adafruit_SSD1306. This ESP8266 module documentation is not great and it took some time to figure out how to make it work.

The lid is ESP8266-based and integrates a VL6180X time-of-flight (ToF) distance sensor, DHT22 to sense temperature and humidity, and a small SSD1306 OLED display for data.

“My-ssd1306 is an interface board for display OLED SSD1306 (with I2C port enabled) created to extend the use of these displays to all the devices equipped with RS232. Moreover, thanking the fact ...