About I2C Address

For LCD1602

I2C Address

Please check the chip to get the l2C address

The l2C address varies among different built-in chips.

This model of LCD1602 adopts wafer-level packaging. Although no visible chips are present on the surface, its usage method remains consistent with other models.

For LCD2004

I2C Address

Please check the chip to get the l2C address

The l2C address varies among different built-in chips.

How to Change the I2C Address

On the back of the LCD1602 and LCD2004 modules, you will find three pads labeled A0, A1, and A2. Each pad consists of two solder points. By using a soldering iron to apply a drop of solder or soldering a 0-ohm resistor across the two points, the two pads can be connected, thereby changing the device’s I2C address. This requires a certain level of soldering skill.