The JHD2X16I2C is a 16-character by 2-line Liquid Crystal Display (LCD) that uses an (inter-integrated circuit) rather than a parallel interface. Key Features:
To decide if searching for the is worth your time, consider the comparison table:
If you need to integrate any or input peripherals alongside the display. Share public link
A common point of failure in Proteus simulations is an incorrect I2C hex address in the source code. The exact address depends on how the internal I/O expander pins (A0, A1, A2) are tied. Expander Chip Type Hardware Pin State (A2, A1, A0) Hex Address (7-Bit) Proteus Write Address All Grounded (0, 0, 0) 0x27 0x4E PCF8574A All Grounded (0, 0, 0) 0x3F 0x7E AIP31068 Internal Default 0x3E 0x7C jhd2x16i2c proteus exclusive
The screen displays the output exactly as it would appear in real life, including scrolling text or custom characters. 3. How to Setup JHD2X16I2C in Proteus Setting up the JHD2X16I2C in Proteus is straightforward. Open Proteus Design Suite and open the Component Mode. Search in the Component Library for "JHD2X16I2C".
Proteus is a robust simulator, but it relies on highly accurate component libraries. When working with the I2C LCD, a few specific issues often trip up even experienced developers:
| LCD Pin | Proteus Net Label | Connected To | |---------|------------------|---------------| | SDA | I2C_SDA | MCU SDA pin | | SCL | I2C_SCL | MCU SCL pin | | VCC | +5V | Power supply | | GND | GND | Ground | The JHD2X16I2C is a 16-character by 2-line Liquid
Load the compiled HEX file into your microcontroller in Proteus, then click the Play button. If everything is configured correctly, you should see "Hello, World!" appear on the LCD within a fraction of a second. If not, proceed to the troubleshooting section below.
Select this 8-bit I2C I/O expander to handle the serial-to-parallel conversion.
: A popular simulation software used by engineers and students to test electronic circuits and microcontroller code before building physical hardware. The exact address depends on how the internal
However, for legacy projects (2015-2020), the "exclusive" model remains the gold standard for a reason: it works exactly like the cheap blue I2C LCDs bought from Amazon or eBay.
Connect the pin of your microcontroller to the SCL pin of the PCF8574.
In Arduino code, for example, instead of:
