PCF8574T IIC I2C TWI SPI Serial Interface Board Module Port for Arduino LCD 1602 LCD 2004 Display Module

โมดูล PCF8574T ใช้สำหรับลดขา LCD ให้เหลือเพียง 2 pin (I2C bus) ทำให้ประหยัดขาสัญญาณและลดความซับซ้อนของวงจรลงได้อีกมาก สามารถใช้ได้ทั้ง LCD แบบ 16 หลัก และ 20 หลัก (1604 / 2004 compatible) This is another great IIC/I2C/TWI/SPI Serial Interface. 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. I2C Address: 0X20~0X27 (the original address is 0X20,you can change it yourself) the backlight and contrast is adjusted by potentiometer Come with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable I2C Address: 0x27 (I2C Address: 0X20~0X27 (the original address is 0X27,you can change it yourself) Specification: Compatible for 1602 LCD and 2004 LCD Supply voltage: 5V Weight: 5g Size: 5.5x2.3x1.4cm