I2C Serial Interface Adapter Module for LCD (PCF8574)
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
| Circuits Electronics | I2C Serial Interface (Adapter Module for LCD Display) | 60 EGP | View in store |
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Lowest price recorded: 60 EGP
About this product
I2C serial interface adapter module based on the PCF8574 I/O expander, designed to connect a character LCD display using only two wires. It frees up Arduino pins when a project already uses sensors or an SD card, and shares the same I2C bus as other I2C devices.
Specifications
- IC chip
- PCF8574
- Interface
- I2C (2 wires: SDA, SCL)
- Working voltage
- 5 V
- Dimensions
- 45 x 19 mm
- Net weight
- 6 g
Frequently asked questions
What is the price of I2C Serial Interface Adapter Module for LCD (PCF8574) in Egypt?
I2C Serial Interface Adapter Module for LCD (PCF8574) currently costs 60 EGP in Egypt.
Where can I buy I2C Serial Interface Adapter Module for LCD (PCF8574) in Egypt?
I2C Serial Interface Adapter Module for LCD (PCF8574) is available from Circuits Electronics. Compare the offers above to find the best price.
Which LCD displays are compatible with this I2C adapter?
It is designed for standard HD44780-compatible character LCDs, such as 16x2 and 20x4 modules, which normally need a parallel interface. Connect the adapter to the LCD's 16-pin header.
How do I wire this module to an Arduino Uno?
Connect GND to GND, VCC to 5V, SDA to A4 and SCL to A5 on an Arduino Uno. Most libraries detect the I2C address automatically, and common addresses are 0x27 or 0x3F depending on the PCF8574 variant.
