In this guide, we shall investigate how to use timer to generate precise delay in down to microseconds ( will use 1 second delay here for demonstrations purposes only). In this guide, we will cover the following: What is the timer and how it...
READ MOREIn the pervious two guides (part 1 & part 2 ) how to send a single character and string using UART. In this guide, we shall discuss how to receive a character from UART using interrupt handler and echo back the sent character and blink the...
READ MOREIn previous guide(part 1), we looked for how to send a single character. Now we will extend the usage of uart module to send a string contains “Hello from stm32f4” and a variable as “my variable is variable” In this guide...
READ MOREIn this guide, we shall discuss how to use the UART module on STM32F4xx specifically, STM32F411RE Nucleo. In this guide we will cover the following: What is UART How to configure the UART on STM32F4xx Code Demo 1. What is UART To transfer data...
READ MOREIn the previous ADC guides (part 1, part 2, and part 3), we talked about how to configure the ADC to read a single channel in three different modes, polling, continuous with polling and interrupt. Those can be valid for simple application like...
READ MOREIn previous guide (here) we discussed how to handle Systick timer interrupt and blink a single led using interrupt generated by systick and millis function. In this guid, we will take it even further by blinking multiple leds (3 leds) in...
READ MOREIn previous two guides (Understanding GPIOs and Understanding the Systick Timer) we explained how to use GPIOs in both input mode and output mode and how to use SysTick timer to generate delay. Delay is a function thats block the cpu for certain...
READ MOREIn the part 1 of working with ADC and STM32 (link), we talked about the ADC and how it does work, configure it to read a potentiometer using single conversion method. In this guide we shall discuss the continuous ADC conversion polling mode (i.e...
READ MOREIn this guide, we shall learn how to use the ADC of the STM32 for single channel Single Conversion mode using only registers. The ADC is commonly used to measure the voltage from a sensor for example temperature sensor such as LM35 which can...
READ MOREThis guide shows how to use the HC-SR04 Ultrasonic Sensor with the STM32F411 Nucleo-64 board using only registers level with GPIO polling mode. The ultrasonic sensor uses sonar to determine the distance to an object. We’ll show you how to wire...
READ MOREAs you may know memory holds code and data for the CPU to process ,and the I/ O ports are used by the CPU to access input and output devices. In the microcontroller we have two types of I/ O. They are: a. General Purpose I/ O (GPIO): The GPIO...
READ MOREComputers transfer data in two ways: parallel and serial. In parallel data transfers, often eight or more lines (wire conductors) are used to transfer data to another device. In serial communication, the data is sent one bit at a time. In the...
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