Display LCD 16×2 with keyboard – I2CBUS version (via PCF8574)
24,90€ inc. VAT
This LCD board is designed to work with I2Cbus via the PCF8574 chip. It means that you need a smaller number of control signals (just two: SCL and SDA). As a result you will have a greater number of signals available to drive other I/O signals.
This solution is better than parallel mode because it uses PCF I2Cbus, shared with RTC (real time clock) and external EEprom.