In 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 MORECharacter display LCD ares used in so many products we used daily. We can find them in Espresso machines, 3D printers, microwaves and printers and many other products. In this lesson we going to lean how to interface LCD’s to our...
READ MORENormal-Close basically means in the normal state of the switch i.e non-pressed state, the switch is a closed circuit.The circuit breaks when the switch is pressed. Assuming we connect a normally closed switch to an LED the way we usually...
READ MORENormal Open Switches Normal – Open switches is the name given to the switches we are very much used to. The switches that turn on when we press and goes off when we release. These switches are called Normal-Open because in their normal...
READ MORETo transfer data, computers adopt two method: serial and parallel. In serial communication data is sent a bit at a time (1 line)while in parallel communication 8 or more lines are often used to transfer data. The UART is a form of serial...
READ MOREThe Serial Peripheral Interface (SPI) is a bus interface found in many devices such as DAC,ADC, EEPROM etc. SPI devices typically use two pin for data transfer. – SDI and SDO. The SPI bus has the SCLK (Serial Clock) pin to synchronize the data...
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