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Device: LCD 2004, Module PCF8574AT and STM32F407 Address of PCF8574AT: 0x7E (Fig. 10 in Datashhet of PCF8574AT) Module PCF8574AT and LCD: P0 connect to RS; P1 connect to RW; P2 connect to E; P3 ...
I2C protocol makes it easier to connect more ICs using only 2 wires SDA and SCL and allows communication between them at relatively low speed. The I2C bus or TWI (Two Wire Interface) allows a single ...
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