I2C Serial Interface Board Module Port For 1602 LCD Display PCF8574 IO Expansion Board I2C-bus to 8-bit Parallel
ตัวแปลงจาก I2C serial to 8 bit parallel ต่อกับ LCD ช่วยลดจำนวนสายของ LCDให้เหลือแค่ 3-4 เส้น VCC GND SCL SDA
ใช้ได้ทั้ง LCD 16x2 16x1 20x2 20x4 16x20 และขนาดอื่นๆ
Description :
This is a IIC/I2C/TWI/SPI IO Expansion Board.the PCF8574 chip is I2C-bus to 8-bit Parallel
As the pin resources of Arduino controller is limited, your project may be not able to use normal LCD shield after connected with a certain quantity of sensors or SD card. However, with this I2C interface module, you will be able to realize data display via only 2 wires. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino based project.
Specification:
I2C Address: 0x27
Supply voltage: 5V
the backlight and contrast is adjusted by potentiometer
Come with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable
Compatible for 1602 LCD
ราคาชิ้นละ 80 บาท