3/31/2024 0 Comments Stm32f103c8t6 blue pill schematicHere comes the PCF8574 GPIO Expander IC to the rescue. How to Interface I2C LCD with STM32F103C8T6? Using six pins of the Microcontroller to connect to a character display seems not that important but if your project is quite complex, then every pin of the MCU seems very important. Even in 4-bit data mode, the LCD needs atleast 6 Pins of the Microcontroller (four for the Data Pins, one for Register Select pin and one for Enable Pin, assuming the operation is Write i.e. This is all well and good but a small problem with 16×2 LCD or even the larger 20×4 LCD Display is it takes a lot of pins for interfacing with Microcontroller. I have used 16×2 LCD display module in quite a lot of my projects with a wide variety of Microcontrollers like 8051, ARM7 based LPC2148, ATmega8, Arduino UNO and PIC. The information displayed on the LCD can be related to the project itself like a reading from a Temperature Sensor or special data like debug messages or error codes. Small Alpha-Numeric Character Displays like the very popular 16×2 LCD Display are very useful little components as you can use them to display some important information related to your project. Identifying the Slave Address of PCF8574 Module.How to Interface I2C LCD with STM32F103C8T6?.
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