HD44780 16×2 LCD is one of the most common and versatile LCD displays to show any message given by an embedded system. In this tutorial we are interfacing alphanumeric LCD with STM32 STM32F051C8 microcontroller board and economically board. You will learn what you need to integrate LCD with your project and any STM32 series ARM 32 bit microcontrollers. As a programming tool we still use Keil C ide compiler to accomplish this task, in order to do this we will use an inbuilt display library for LCD named HAL library. We will learn how to use this library in our project to display messages and information on HD44780 16×2 LCD using STM32 ARM microcontroller. The HAL library is the newest library from ST microcontrollers and it is highly recommended to use this library to interface LCD with STM32F051C8 Basic Board ARM Cortex M0 32 bit MCU. This project is based on STM32F051C8 microcontroller which is the powerful member of STM32 ARM Microcontroller. This chip is equipped with 48 Pins with 64KB inbuilt flash memory storage with least cost. You can use Arduino Language to program LCD with STM32.
STM32F051C8 Basic Board – ARM Cortex M0 32 bit MCU
It is the most common and sophisticated development board based on STM32F051C8 ARM microcontroller with 3.3v integrated voltage regulator already, with crystal oscillator pulse 8Mhz and you need few pin connection to run your applications. We can connect power source from micro USB cable from computer, laptop or from mobile charger and power consumption is very low. With the help of GPIO pins we can connect external devices of microcontroller easily. You can also use Keil C Programming with with STM32.
The Functional Characteristics
Board is integrated with low cost MCU STM32F051C8T6 ARM with powerful 32 bit Cortex kernel. It possesses 64KB internal flash memory to store the programmed file as firmware with 8KB Static Random Access Memory RAM. Internal clock which is the core part of any embedded board has an 8Mz crystal oscillator to execute the program. It needs a low power supply of 3.3 volt.
(1) The SWD interface, downloading and debugging support.
(2) For communications support it has a UART interface.
(3) On board ASM1117-3.3 V voltage regulator chip;
(4) The MCU pin interface, which leads to the VCC, GND and all I/O, convenient connection with various modules.
(5) Red LED as power indicator.
(6) For testing purposes Green LED Light is given.
(7) Reset button