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I2C/IIC Serial Interface Board Module for 1602/2004 LCD
$0.4800
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SKU
LCD-01-036
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HDMI/VGA/AV to LVDS/RGB/TTL Convertor for 40/50/60 pin LCD Previous 
I2C/IIC Serial Interface Board Module for 1602/2004 LCD simplifies character LCD wiring with I2C communication. It is based on the PCF8574T I/O expander IC and is designed for 16x2 (1602) and 20x4 (2004) character LCD displays. The module reduces the number of required microcontroller pins and supports 4-bit serial display communication. Backlight and contrast can be adjusted through the onboard controls. The I2C address can be changed using jumpers.
Features of I2C/IIC Serial Interface Board Module For 1602/2004 LCD - PCF8574T
- I2C communication interface
- Reduced pin usage
- 16x2 and 20x4 LCD compatibility
- Backlight control
- Contrast adjustment
- Adjustable I2C address
Specifications of I2C/IIC Serial Interface Board Module For 1602/2004 LCD - PCF8574T
- I/O Expander IC: PCF8574T
- I2C Interface: Provides I2C communication protocol for interfacing with microcontrollers
- Digital I/O Pins: Expands the available digital I/O pins for controlling LCD displays
- Compatibility: Designed for 16x2 (1602) and 20x4 (2004) character LCD displays
- Voltage Level: Typically compatible with 3.3V and 5V microcontrollers
- Operating Voltage: Typically 5V
- Dimensions: 41.5mm (length) * 19mm (width) * 15.3mm (H)
- Weight: 5g
- PCB Color: Black
- Supply voltage: 2.5-6V
- I2C Address: 0x20
How to Use I2C/IIC Serial Interface Board Module For 1602/2004 LCD - PCF8574T
- Connect the module to the LCD and microcontroller.
- Set the I2C address using the jumpers if needed.
- Adjust contrast with the onboard potentiometer.
- Control backlight power with the jumper.
More Info
- The module can cascade up to eight devices.
- Address changes can be made with A0, A1, and A2 jumpers.
- The default address can also be 0x27 or 0x3F for newer series.
| Interface Type | I2C |
|---|---|
| Operating Voltage (V) | 2.5-6V |
| Operating Temp (°C) | -40 to 85 |
| Dimensions (mm) | 41x19x15 |
| Mounting Type | Soldering |
| Interface Category | I2C Serial Interface Board Module |
| Weight (g) | 5 |
| Channels | 8-channel |
| Chipset | PCF8574T, PCF8574 |
| Voltage Range | 3.3V, 5V |
| Protocols | I2C |
| Conversion Type | I2C to Parallel |
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