Here is a simple project/tutorial in which i will teach you about how to display ASCII characters on character lcd’s. In this tutorial i am using 16×2 lcd. You can use any other size of lcd if you want but be sure to change the lcd initialization statements in the code. Character lcd’s have a…
NxN(8×1 , 8×2 , 10×2 , 16×1 , 16×2 , 16×4 , 20×2 , 20×4 ,24×2 , 30×2 , 32×2 , 40×2) Character lcd working, Pinout and description
Lcd stands for liquid crystal display. Character and graphical lcd’s are most common among hobbyist and diy electronic circuit/project makers. Since their interface serial/parallel pins are defined so its easy to interface them with many microcontrollers. Many products we see in our daily life have lcd’s with them. They are used to show status of the…
Serial data received from pc and displayed on 16×2 lcd using 8051(89c51,89c52) microcontroller UART port
In this post i am going to explain how to receive serial data from your pc and display it on 16×2 lcd using 89c51 microcontroller UART port. Hardware components of the project includes max232(TTL to RS232 level converter/shifter ), 8051(89c51,89c52) microcontroller and 16×2 lcd. On software side i am using Hyper terminal. Hyper terminal is a program through…
Stm32f103 microcontroller Led on/off control with Push Button as Input
The post explains about how to use stm32 pins as input using keil and stmcubemx ide. A simple led on/off tutorial with push button as input is made to explain the coding and working. When a push button is pressed the led turns on and when push button is released the led turns off. The…
LM35 Temperature Sensor Pin out, Interfacing guide, Circuit Construction and Working Principals
LM35 is a temperature sensor that outputs an analog signal which is proportional to the instantaneous temperature. The output voltage can easily be interpreted to obtain a temperature reading in Celsius. The advantage of lm35 over thermistor is it does not require any external calibration. The coating also protects it from self-heating. Low cost (approximately…
Interfacing stepper motor with 8051(89c51,89c52 ) microcontroller
Here is a simple tutorial on how to interface stepper motor with 89c51 microcontroller. Stepper motor as the name depicts takes steps to complete a full 360 degree circular rotation. We can rotate stepper in clock and anti clock wise direction. Stepper motor speed can also be varied. There are many types of steeper motors four…
How to measure current using Arduino and ACS712 Current Sensor
In this tutorial, I am going to measure DC current using Acs712 Hall Effect-Based Linear Current Sensor and arduino uno. Acs712 can measure current precisely and accurately if properly managed. I have gone through various blogs on internet about interfacing acs712 current sensor with arduino and other microcontrollers. I found that all of them are…
GLCD 128×64 graphical lcd(GLCD) interfacing with 8051(89c51,89c52) microcontroller
In this tutorial i am going to teach you how to interface graphical lcd 128×64 with 8051(89c51,89c52)microcontroller. 128×64 means that lcd has 128 coulombs and 64 rows. Which means you can make your desired image or text in 128×64 matrix square. Graphical lcds comes in many sizes, they also differ in characteristics. Some can be…
Making blinking pattern of leds with 8051 microcontroller
Blinking/flashing leds or making a special pattern of blinking leds through microcontroller is not a big task. One must know about the programming syntax of the particular microcontroller through which blinking led pattern is required. Numerous microcontrollers are available in market and each has its own programming ide(Integrated development environment). In this tutorial we are going to…
Tic Tac Toe Multiplayer game in c++
Here is one of my semester project from my bachelors degree Tic Tac Toe game. It is made in c++ language using visual basic as tool to write and compile code. Game supports multiplayer as well as computer as a player. Its not an easy task to build this game especially when it includes computer as a player…
Melay machine finite state machine design in vhdl
This tutorial is about implementing a finite state machine is vhdl. I will go through each and every step of designing a finite state machine and simulating it. Xilinx is used as a tool to construct finite state machine and for simulation and testing purpose. I suppose you know what is finite state machine and…
Arduino uno automatic car head light on/off battery and temperature monitoring system
A simple diy project on how to monitor car battery, engine temperature and automatically control the headlights of car with arduino uno. I have pretty old vehicle, which does not have any fancy items/mechanics in it. So i decided to make this project and make my car look a little bit fancy by my self.…
Arduino water level/quantity/volume indicator/monitor/measurement in water tank
In the previous tutorial i discussed how to interface water sensor with arduino? What are arduino water sensor limitations? How to write effective and efficient code for arduino water detector which limits minute calculation errors? At last steps involved in converting analog water reading by arduino in to its equivalent digital form is highlighted. In…
Stm32f103 Pwm(Pulse width modulation) signal generation using internal timers, keil MDK-ARMv6 and Stmcubemx Ide
This tutorial is about generating pwm (pulse width modulation) signal with stm32f103 microcontroller using its internal hardware timers. Stm32f103 microcontroller components/peripherals initialization code is generated using stmcubemx ide and code is written and compiled in keil MDK-ARMv6 ide. A simple led is derived on a fixed pwm signal output. Led dims and blinks according to the duty cycle and frequency…
Rs485 Serial Communication Between Arduino Mega and Arduino Pro Mini
In this project i will discuss about how to use Max485 for serial communication between two arduino boards. How to effectively configure RS485 in receive and transmit mode. What are advantages of using RS485 protocol for serial communication and finally i will present a working model of RS485 serial communication between arduino Mega and Arduino Pro Mini. Rs485…
Microchip xc8 compiler place data in ram specific location/address of pic microcontroller
This tutorial is about placing data in a specific ram(random access memory) location/address using xc8 compiler and mplabx ide. I am using microchip pic16f877 8-bit microcontroller in this tutorial. It has 8KB of rom (read access memory) and 368 Bytes of ram(random access memory). Its generally not recommended to place data in data memory(ram). Since data…
ATM Machine System in C++
Here is a simple project on ATM(Automated teller machine).The code is written in c++ language. Visual studio is used to compile the code. The code carry out all the functions that all standard atm machines do. You can check amount present in your account, withdraw balance and deposit amount. In the code below there are…
Displaying ASCII Characters on 16×2 Character lcd Using Microchip PIC16f877 Microcontroller
In this tutorial i am going to print/display ASCII characters on 16×2 lcd using pic16f877 microcontroller. Lcd is interfaced with pic microcontroller in 8-bit mode. Code is written in c language. High tech c compiler is used to compile code and code is written in Mp-lab ide. Interfacing 16×2 lcd with pic microcontroller and displaying characters…
Nodemcu esp8266 stepper motor NEMA 17 controlled over WiFi
This tutorial is about controlling stepper motor over WiFi through desktop or mobile web browser using nodemcu esp8266 WiFi module. Nodemcu will work as a server and it will serve a web page. Web page contains the stepper motor control buttons. Stepper motor takes steps to complete one full 360 degree rotation. Number of steps…
Dc motor speed and direction control with stm32f103 microcontroller and l293d motor driver
In this tutorial i am going to teach you how to control speed of dc motor using stm32 microcontroller and l293d half h bridge control ic. Dc motors are common motors you see in your houses(DC water pumps, DC fans), toys etc. DC motors rotate at a constant speed but their speed can be varied…