Learn STM32F4 Discovery Board LED blinking step by step using GPIO pins, HAL library, and Keil uvision IDE. Complete tutorial with wiring, code, and troubleshooting for the STM32F407VGT6 microcontroller.
In this tutorial, we will discuss 5V single channel relay modules and their important features such as pinout, pin configuration details, features, working, interfacing with microcontrollers and applications. Relay is an electro-mechnical device which acts as a switch. DC electrical current is used to energize the relay coil which opens or closes the contact switches. … Read more