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In our previous tutorials, we have learned about SPI and I2C communication between two Arduino boards. In this tutorial we will replace one Arduino board with the Blue Pill board that is STM32F103C8 and will communicate with the Arduino board using I2C bus.
STM32 has more features than Arduino board. So it would be great to learn about communication…
In our previous tutorial learned about SPI communication in Arduino. Today we will learn about another Serial Communication Protocol: I2C (Inter Integrated Circuits). Comparing I2C with SPI, I2C has only two wires while SPI uses four, and I2C can have Multiple masters and slaves, while SPI can have only one master and multiple slaves. So there are more than one…
A Microcontroller uses many different protocols to communicate with various sensors and modules. There are many different types of communication protocols for wireless and wired communication, and the most commonly used communication technique is Serial Communication. Serial communication is the process of sending data one bit at a time, sequentially…
Most of us would be familiar with the 16×2 Dot matrix LCD display that is used in many projects to display some information to the user. But these LCD displays have a lot of limitation in what they can do. In this tutorial, we will use OLED to display some basic information from the Android smartphone like Time, date, network strength and battery status…
Every Engineer who loves to tinker with electronics at some point of time would want to have their own lab set-up. A Multimeter, Clamp meter, Oscilloscope, LCR Meter, Function Generator, Dual mode power supply and an Auto transformer are the bare minimum equipments for a decent lab set-up. While all of these can be purchased, we can also easily built few on our own like the…
Bluetooth is the simplest and most popular protocol for short range wireless communication in embedded systems. Bluetooth is not only used for transferring the data from one device to another but also used to control the devices wirelessly. Almost every electronic gadget has Bluetooth support now days so it is wise choice to have Bluetooth control option in your embedded…
We all know that, Atmega328 IC is used in Arduino UNO board. This IC is the brain of the Arduino board. Actually, Arduino designers wanted to make a handy prototyping board for the beginners so they organized all the components in such way that anybody can access all the pins of the Atmega328 IC and can program it just by connecting it to computer. Arduino board is very…
You just made payment to a restaurant and received a small bill or dispensed cash from an ATM and received the transaction receipt. These receipts are printed using a Thermal printer or receipt printer.
Thermal printer is the readily available and cost effective solution to print small bills or receipts. This easy to integrate solution is available…
Human brain is built of complex layer of structures which helps us to be a dominant species on earth. For example the entorhinal cortex in your brain can give you sense of direction helping you to navigate easily through places that you are not familiar with. But unlike us, Robots and unmanned Ariel vehicles need something to get this sense of direction so they could…
Graphs are always helpful to visualize the data and it becomes very easy to find trends and patterns by looking at them. There are many software available to plot graphs based on the input values, today we will use MATLAB to plot graph based on the temperature data from LM35 sensor. This tutorial will give you a basic idea about how to plot real time graph using MATLAB.…
MATLAB is versatile software that can be used for wide variety of applications. In previous tutorials of MATLAB, we have explained how to use MATLAB to control DC motor, Servo motor and Home appliances. Here in this tutorial, we will learn how to use MATLAB for Serial Communication. For the receiving end of serial communication, we are here using Arduino…
Stepper motors is a brushless DC motor that rotates in discrete steps, and are the best choice for many precision motion control applications. Also, stepper motors are good for positioning, speed control and applications which require high torque at low speed.
In previous tutorials of MATLAB, we have explained that how to use MATLAB to control DC…
