The JHD-2x16-I2C module is an efficient choice for adding display output to microcontroller projects. Proteus provides an accurate simulation environment to develop and test I2C-based LCD code. By following the connections, pull-up guidelines, and code examples above, users can quickly prototype applications like data loggers, clocks, and sensor dashboards entirely in software.
| LCD I2C Pin | Arduino Uno Pin | Proteus Net Label | |-------------|----------------|-------------------| | VCC | 5V | VCC | | GND | GND | GND | | SDA | A4 (or SDA) | SDA | | SCL | A5 (or SCL) | SCL | jhd-2x16-i2c proteus
Important: In Proteus, if using
PCF8574+LM044L, connect PCF8574’s P0–P7 to LM044L’s RS, RW, E, D4–D7 as per standard 4-bit mode. But the prebuiltLCD I2Cmodel simplifies this. The JHD-2x16-I2C module is an efficient choice for
Proteus includes an I2C Debugger tool (from the virtual instruments mode). Connect it to SDA/SCL to monitor actual transmitted bytes. You will see: | LCD I2C Pin | Arduino Uno Pin
Proteus does not always have a pre-made schematic symbol specifically named "JHD-2x16-I2C" in all library versions. Therefore, the simulation is constructed using the standard parallel LCD and an I2C expander component.
The JHD-2x16-I2C is a 16-character by 2-line alphanumeric LCD module equipped with an I2C (Inter-Integrated Circuit) interface. It is widely used for displaying text and sensor data in embedded systems. Simulating this module in Proteus Design Suite allows engineers and students to develop and test firmware without physical hardware.
This report provides a step-by-step guide to using the JHD-2x16-I2C module in Proteus, including circuit design, Arduino/8051 code, and I2C communication principles.