In this tutorial, we will learn how to interface a 4×3 keypad with STM32 Blue Pill and program it in STM32CubeIDE using HAL libraries. A keypad is an input device that is used to give commands to other devices, from calculators to computers; input is given through the keypad. At first, we will briefly introduce … Read more
In this tutorial, we will learn how to interface a microSD card with STM32 Blue Pill using the microSD card module using STM32CubeIDE. This module provides an SPI interface to connect an SD card module with any microcontroller which supports the SPI communication interface. Using a microSD card becomes very handy for applications where we need to store … Read more
In this tutorial, we will learn how to interface DHT22 temperature and humidity sensor with STM32 Blue Pill and program it in STM32CubeIDE using HAL libraries. At first, we will briefly introduce you to DHT22 sensor, then interface it with our STM32 and program it for temperature and humidity measurement using STMCube IDE. For demonstration, … Read more
In this tutorial, we will learn to use HC-SR04 ultrasonic sensor with STM32 Blue Pill and program it using STM32CubeIDE and HAL libraries. At first, we will take a look at the ultrasonic sensor, then interface it with our STM32 Blue Pill and program it for contactless distance measurement using STM32CubeIDE. For demonstration, we will … Read more
In this tutorial, we will learn to interface SSD1306 OLED with STM32 Blue Pill and program it using STM32CubeIDE and HAL libraries. An OLED (organic light-emitting diode) is used frequently in displaying texts, bitmap images, shapes, and different types of clocks. They offer good view angles and pixel density in a cost-effective manner. At first, … Read more
In this tutorial, we will learn to interface HC-05 Bluetooth module with STM32 Blue Pill using STM32CubeIDE and HAL libraries. We will use an android application to communicate with the STM32 Blue Pill through the HC-05 Bluetooth module. We will see an example to control an LED from the Android application using Bluetooth communication. The … Read more
In this STM32 Blue Pill user guide, we will learn how to send and receive data through SPI communication protocol between a master STM32 and a slave STM32 board. We will particularly focus on showing you three methods to receive data via SPI communication that involves polling, DMA, and interrupt methods. Therefore, we will create … Read more
In this tutorial, we will learn to use STM32 Blue Pill timer PWM mode and how to configure them to generate signals with different duty cycle and frequency. We will use an LED dimmer example to demonstrate how to setup the timer in PWM mode using STM32Cube IDE and HAL libraries along with a comprehensive … Read more
In this user guide, we will discuss how to configure STM32 Blue Pill timer module in counter mode. To use the timer as a counter, we will configure it in input-edge counter mode. In input edge capture counter mode, timers of stm32 start to count whenever an external event occurs on the input-edge capture GPIO … Read more
In this Blue Pill tutorial, we will discuss how to configure STM32 timer module in encoder mode. We will use a rotary encoder to demonstrate that how to read the encoder ticks using STM32Cube IDE and HAL libraries. In the first example, we will display encoder ticks on a serial terminal, and in the second … Read more