LCD serial Interface Adapter PCF8574 IIC I2C 5V Display Adapter LCD1602 2004

LCD serial Interface Adapter PCF8574 IIC I2C 5V Display Adapter LCD1602 2004

Das PCF8574 ist ein übliches I2C zu 8-bit I/O Modul. Es kann für andere Nutzen zweckentfremdet werden und nicht nur für LCD Module verwendet werden.

The PCF8574 is a generic I2C to 8-bit I/O device. The module can be repurposed for other uses besides driving LCD modules. Max I2C clock frequency is 100kHz which makes it most suited to lower speed applications.

16 Header Pin Layout:

• VSS = Ground
• VDD = Connects to VCC on the I2C header
• VO = Display contrast. Connects to the potentiometer on the module
• RS = P0 on PCF8574
• RW = P1 on PCF8574
• E = P2 on PCF8574
• D0 – D3 = Data bit 0-3 are no connects
• D4 = P4 on PCF8574
• D5 = P5 on PCF8574
• D6 = P6 on PCF8574
• D7 = P7 on PCF8574
• A = Backlight Anode. Typically connects to 5V
• K = Backlight Cathode. Connects to ground