I2C is a communication protocol developed by NXP semiconductors for communication between devices within a short distance. In I2C protocol master slave relationship exists between devices and slaves contains I2C address for each of them.Sensors such as MPU6050 or ADXL345 has the same I2C address for all of them. So it is difficult to use…
UART (Universal asynchronous receiver/transmitter) one of the important topic in embedded programming. In this tutorial a simple uart program was implemented. First create a project and include following libraries from repository. CMSIS RCC GPIO USART MISC Retargeted Printf All the libraries and their functions are almost same for all the libraries except Retargeted Printf. Printf…
In this tutorial pulse width modulation application was implemented using STM32F3 Discovery board. PWM is a modulation technique that change width of a pulse. This width depend on modulator signal information. Therefor this technique can be used to encode information into a signal. And also it uses as a technique of controlling power. Here it…
In this tutorial a button was interface with STM32F3 discovery board. User button attached to Pin A0 was used for this purpose. A new project was created and Libraries from repository was added as same as LED blinking project. Same libraries were added in this case also. Then following program was entered in IDE. #include…
In this tutorial, blinking led application implemented using built in libraries for STM32F3VC. Using libraries make things easy and no need to go to datasheet to implement every code. Every register location is defined with human readable values and it makes things easy. First create a new project as mentioned in previous tutorials and add…
In this tutorial a LED blinking program will be written without using built in libraries. First create a new project as discussed in tutorial 2 and select M4 CMSIS Core and cmsis_boot form repository. Now double click on main.c and enter the following code. #include <stm32f30x.h> int main(void) { volatile unsigned int i =0; RCC…
In this second tutorial software tools which is necessary to program STM32F3 is discussed. Most of software tools discussed in this tutorial series are FREE and open source. Problem with most of ARM developing tools are, they are designed for commercial use only. They offer free trial versions only with limited features. Keil Microcontroller Development…
Introduction The STM32 F3xx micro-controllers are based on the ARM Cortex-M4 core. This Cortex-M4 core is used by number of manufactures like Toshiba, ARM, NXP etc. Sharing same core has lot of benefits. Most important benefit is programming tools, compilers and debuggers are common for wide range of devices. Also provide opportunity to develop simple…
Code Blocks is a cross platform free and open source IDE developed for C, C++ and Fotran. This light weight IDE can be used to program AVR microcontrollers also. This tutorial is about how to install and configure Code Blocks (CB) on Ubuntu in order to program Atmel AVR microcontrollers. Step1 – Install required AVR…
Microcontroller is a small chip on a computer. AVR is one of the microcontroller families developed by Atmel. One main reason for getting such a fame for AVR is the availability of a large number of free and open source development tools compared to other similar microcntroller families. Arduino, the most famous open hardware platform…
Introduction What is turbidity? Turbidity is an optical characteristic or property of a liquid, which in general terms describes the clarity, or haziness of the liquid.Turbidity is the measure of the amount of un-dissolved suspended particles that present in liquid, which are generally invisible to naked eye.The turbidity meter is used to measure amount of…
Introduction The objective of this mini-project is to develop a portable electronic tic tac toe board capable of playing with one player and a microcontroller or two players. Coming up with an algorithm and necessary hardware that would encourage players to play tic tac toe is critical. The finished product will be very user friendly…
Introduction What is reflectance? Reflectance is a property of a surface which is equal to the proportion of incident light which it reflects or scatters. It describe about the surface’s nature. That is whether it is a rough or smooth one or it is a dark or light one. Reflectance is a very important fact…
Introduction Motion detecting twilight LED lamp is design to turn ON & OFF the light in a room with the use of motion sensor. When a person go through the door inside to the room he or she may forgot to turn off the light when leaving the room. This happens very frequently in our…
Introduction The line following car is a car that follows a black line on white surface. The idea to make a line following car is inspired when I saw some video clips of line following cars. The basic concept of the line following car is that the line is detected using optical sensors and according…