Arduino

The previous tutorial included a discussion about the tools and components necessary to get started with Arduino. However, before starting with Arduino UNO (or any other Arduino board) — and experimenting with hardware projects on various sensors, actuators, and modules — it’s important to get through the basics of Arduino sketches and the embedded C…

Arduino are single-board microcontrollers that are easily programmable through a USB connection. They are used with electronics to design embedded system prototypes, the Internet-of-Things (IoT), and electronic gadgets.  Much like other microcontrollers, Arduino provides software-backed computing and embedded control to basic electronics applications. That means getting started with Arduino is no different than with other…

Embedded electronics are in a countless number of devices and appliances, with microcontrollers at the heart of the operation. A microcontroller is a compact integrated circuit that controls a specific operation in an embedded system. There was a time when only BASIC stamp microcontrollers, with a simple interpreter, were available for designing, prototyping, and testing…

Here is a very nice and interesting application of controlling a missile launcher model through a smartphone using an android Bluetooth application. The model of the missile launcher is built using two servo motors. One servo motor (azimuth motor) turns the missile launcher left and right while another servo motor (elevation motor) moves the missile…

In the previous tutorial, we discussed manipulating data values in lists and byte arrays. Python also has mutable unordered collections like sets and dictionaries. Let us see how data values/objects in sets and dictionaries can be manipulated. Sets Sets are unordered mutable collections of items. The items in a set can be any arbitrary immutable…

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…

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…

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.…

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…

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…

This tutorial is about interfacing SD-card with arduino. First i will explain what is SD-Card? Where it can be used? SD-Card applications? Then I will move on to the pin out of SD-card. The protocol used by SD-Card to communicate with external modules(microcontrollers etc). Finally, I will present a simple DIY electronics project on how…

In this tutorial i am going to teach you how we can measure the visible light intensity using arduino and sparkfun Luminosity Sensor Tsl2561. Light intensity value will be displayed on 16×2 lcd interfaced with arduino uno. Visible light intensity is also know as lux. Typically lux is a measure of how bright any illumination will…

This project is about displaying custom characters on 16×2 character lcd using arduino uno microcontroller. With ardunio uno its very easy to display custom characters on lcd. In arduino their is built in structure to generate custom character like many other features which make it perfect board for embedded system projects or diy(do it yourself) projects etc. …

This electronics and avionics engineering project by a final year student at university of liverpool is about identifying the objects/threats in visible range by utilizing the ultrasound sensors. The ultrasound transmitter and receiver sensors are arranged in a pattern to form a bistatic radar field. In this bistatic field any physical object of any shape…

This is a simple project/tutorial on how to send sms/text message using sim900d gsm module with arduino uno. Project code is written in arduino ide. The code is compatible to all arduino boards. Post covers how to interface sim900 gsm module with arduino uno and efficiently send sms/text message to a desired cell phone number. Sim900d…

In this post i am going to explain how to program the Atmega162 controller using Arduino IDE. Since their is no support for Atmega162 officially in arduino IDE, So for making atmega162 compatible with arduino ide we need to define some files to make it visible to  the arduino ide. Luckily some work is already done…

Recently we started a project to interface real time clock(RTC) DS3231 with atmega32 microcontroller. First we wrote program in atmel studio ide, our logic worked and hardware was responding as desired. Then we need some other sensors to be interfaced with the same system. So we decided to move from atmel studio to arduino ide…

Here is one more and complex project made using arduino uno. Project is about how to make and interface an alphanumeric keypad with arduino uno or we shall call it how to program 4×3 keypad to function like alphanumeric keypad with arduino uno. The project is complex in the scenario that its code is complex and it…

Checking a TFT lcd driver is very messy thing especially if its a Chinese manufactured TFT. TFT’s that are supplied by Chinese manufactures are cheap and every body loves to purchase them since they are cheap,but people are unaware of the problems that comes in future when finding the datasheet or specs of the particular TFT…

This post explains about how to display text on TFT lcd using arduino uno? TFT which is used in the tutorial is 2.4′ TFT by Mcufriend. It has ST7781 controller in it, Driver code is ST7783. This 2.4 inch TFT Lcd is arduino compatible. It can easily be mounted on an Arduino uno board.  This TFT…