ESP8266: Snooping the I2C Bus for devices

ESP8266 LCD Module Wiring

Few weeks ago I was playing around with a 1602 LCD module and my ESP8266. I was disappointed by the number of wires that were running between the ESP8266 and the LCD display. It was a mess!

The I2C bus is a very flexible serial bus invented by Philips Semiconductors (Now NXP) that is used to connect ICs to Microcontrollers at low speeds at short distances.

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