Peripheral Drivers – Page 2

Getting Started with STM32H5 ARM Cortex M33: Timer in Encoder Mode

Posted February 6, 2025 by Husamuldeen

In this guide, we shall see what is rotary encoder and how to use timer of the STM32H5 to read the pulses using hardware which will relief the MCU from processing the pulses of the encoder. In this guide, we shall cover the following: 1. What is...

Interfacing the 128×64 ST7920 GLCD with STM32F4 via SPI – Part 1: Introduction, Connection, and STM32CubeMX Setup

Posted February 1, 2025 by Husamuldeen

The ST7920-based 128×64 GLCD is a versatile graphical display commonly used in embedded systems for visualizing text and graphics. When interfaced with an STM32F4 using SPI, it enables efficient communication while minimizing pin usage. This...

Getting Started with STM32H5 ARM Cortex M33: SPI in TX with DMA

Posted January 31, 2025 by Husamuldeen

In this guide, we shall use DMA to transmit data over SPI bus to relief the CPU and make it free to do something else. In this guide, we shall cover the following: 1. Why to Use DMA with SPI: Using DMA with SPI in STM32 is highly...

Building a Library for 1602 LCD with STM32F4: Display Initialization and Display Characters (Part 2)

Posted January 25, 2025 by Husamuldeen

In the second part of building library for 1602 LCD, we shall intialize the LCD and start writing some data to the display. In this guide, we shall cover the following: 4. Creating Header and Source Files: After the project has been generated by...

Getting Started with STM32H5 ARM Cortex M33: SPI in Full Duplex Mode

Posted January 23, 2025 by Husamuldeen

In this guide, we shall cover how to transmit and receive data from a slave device connected to out STM32H5. The slave device is ADXL345 accelerometer. In this guide, we shall cover the following: 1. Configure the SPI for ADXL345: Open SPI_TX.ioc...

Building a Library for 1602 LCD with STM32F4: Features, Connections, and Initialization (Part 1)

Posted January 18, 2025 by Husamuldeen

This guide is part one of a two-part series that explains how to interface a 1602 Liquid Crystal Display (LCD) module with the HD44780 driver to an STM32F4 microcontroller. In this part, we focus on the LCD features, hardware connections, and...

Getting Started with STM32H5 ARM Cortex M33: SPI in TX Mode

Posted January 16, 2025 by Husamuldeen

The SPI (Serial Peripheral Interface) on the STM32H5 microcontroller provides a fast and flexible means of serial communication, ideal for connecting peripherals such as sensors or memory devices. In this guide, we focus on configuring the SPI...

Getting Started with STM32H5 ARM Cortex M33: Internal RTC

Posted January 11, 2025 by Husamuldeen

In this guide on RTC (Real-Time Clock), we shall explore the features of the RTC on STM32H5, its functional block diagram, and how to develop a driver using STM32CubeMX. In this guide, we shall cover the following: • What is RTC. • STM32CubeIDE...

Creating a Library for PCA9685 PWM module Part 2: Creating the library

Posted January 10, 2025 by Husamuldeen

In the second part of PCA9685 PWM module guide, we shall create the library that allow us to set the frequency and control the duty cycle of each individual channel. In this guide, we shall cover the following: 6. Creating the Header and Source...

Creating a Library for PCA9685 PWM module Part 1: Getting the Required Information

Posted January 4, 2025 by Husamuldeen

In this guide, we shall see how to build a library to PCF9685. In this guide, we shall cover the following: 1. Introduction: The PCA9685 is a versatile 16-channel, 12-bit PWM controller widely used in applications requiring precise control of...

Creating a Library for PCF8591 AD/DA module Part 2: Building the Library

Posted January 2, 2025 by Husamuldeen

In the second part of the PCF8591 library, we shall build the library to interface the module with STM32F4. In this guide, we shall cover the following: 4. Creating the Header and Source File: After the project has been generated by STM32CubeMX...

Creating a Library for PCF8591 AD/DA module Part 1: Getting the Required Information

Posted December 29, 2024 by Husamuldeen

In this two part series guide on how to create a library for PCF8591 AD/DA (Analog to Digital/ Digital to Analog) that can be used with any microcontroller (STM32F4 in this case). In this guide, we shall cover the following: 1. Gathering the...