The Inter-Integrated Circuit (I²C) protocol is an addressable serial bus that was innovated by Philips in 1982. It’s designed for the seamless intercommunication between various integrated circuits (ICs). Today’s market boasts a plethora of I²C-compatible devices, including — but not limited to — memory chips, expanders, sensors, real-time clocks, and LCD controllers. Given this diversity, a straightforward testing tool can become an indispensable asset in your electronics laboratory.

While the conventional method of implementation involves connecting I2C devices to a microcontroller, certain scenarios call for a more streamlined approach. For testing purposes, employing a microcontroller can introduce unnecessary complexity. This complexity stems from the need to develop valid firmware, program the MCU, establish a connection to a secondary device (often a PC), and create corresponding testing software. However, during the testing phase, the goal is to simplify this task and to ...