Improved Arduino Rotary Encoder Reading

Rotary encoders are great input devices for electronics projects - hopefully this Instructable will inspire and help you use one in your next project. Why write rotary encoder code? I wanted to use a low cost rotary encoder as an input mechanism for one of my upcoming projects and was initially bewildered by the code options available to take readings from the rotary encoder and determine how many "detents" ...

Read more

Arduino based Bluetooth Biped Bob (Walking & Dancing Robot)

Welcome to another project in which we will build a small Robot which can walk and dance. The project aims in teaching you how to make small hobby robots using Arduino and how to program your Servo motors for such applications. At the end of the project you will be able to make this walking and dancing robot that takes command from an Android Mobile Phone to perform some pre-defined actions. You can also us ...

Read more

Building a simple Circuit Probe

The Goals Sometimes you need to check one circuit and test some of its nodes. Usually a tester in voltage mode is a good solution, but it has a pair of problems. First, it measures about zero both when the node is driven at zero volts and when the node is floating (not driven at all). Second, it gives the information on the tester display, so you need to take the view from the circuit to the tester to check ...

Read more

Real Time Face Detection and Tracking Robot using Arduino

Ever wanted to build a Face Tracking Robotic Arm or Robot by simply using Arduino and not any other programming like OpenCV, visual basics C# etc? Then read along, in this project we are going to implement face detection by blending in the power of Arduino and Android. In this project, the mobile camera will move along with your face with the help of servos. The advantage of using the Android Mobile Phone h ...

Read more

Chemoelectronics: Nanoparticle Diodes and Devices That Work When Wet

Whether they’re for sensors in artificial skin that demands flexibility or for wearable electronics where the circuits must withstand our sweat, silicon-based chips aren’t always up to the task. Now, an international research team has developed a way to fabricate flexible, water-loving logic circuits and sensors without the need of semiconductors. Instead, what the researchers have done is coat gold nanopar ...

Read more

Interfacing SSD1306 OLED Display with Arduino

Most of us would be familiar with the 16×2 Dot matrix LCD display that is used in most of the 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 are going to learn about OLED displays and how to use them Arduino. There are lots of types of OLED displays available in the market and there are lots of ways to get them work ...

Read more

BOM/Component manager for KiCad

IMO, KiCad is one of the best EDA tools out there, with just one major problem: Bill of Materials management is rough. If you make more than 1 board a year, you probably know how frustrating it can be to get everything together for an order. There are multiple ways to export a BOM (each with their own ups and downs), and the process of selecting and entering components is excruciatingly manual. You can of c ...

Read more

Simple Arduino Audio Player and Amplifier with LM386

Adding sounds or music to our project will always make it looks cool and sounds much more attractive. Especially if you are using an Arduino and you have lots of pins free, you can easily add sound effects to your project by just investing in an extra SD card module and a normal speaker. In this article I will show you how easy it is to Play music/add sound effects using your Arduino Board.  Thanks to the A ...

Read more

Open-Source SWD Programming Adapter

After making the switch from AVR to STM32 microcontrollers, I redesigned my old 6-pin ICSP pogo-programming adapter for SWD. The new design allows programming with pogo pins or a small pin header soldered to the pogo pads for debugging, all with the same cable. The footprint uses surface mount pads only, so it can be placed on even the most compact board layouts. The ST-link adapter I designed a small PCB w ...

Read more

How to Send Data to Web Server using Arduino and SIM900A GPRS/GSM Module

Today we are here with an interesting project in which we will Send Data to the SparkFun server using Arduino and GPRS. This is an IoT based project in which we will use GPRS, present on the GSM Module SIM900A board, to send some data to the web service on the internet. In this project, we will simply enter some text using 4x4 Alphanumeric keypad and send it to SparkFun website using Arduino and GPRS, from ...

Read more

ESP12e + OLED display – a try to make a smartwatch

Description Recently I bought two ESP12e, wanted to see how those IoT things work. One thing I know for sure, they don't tolerate 12V 1A ;) yep fired one by accident ... I left with one working, trying to figure out what should I build with it. In the meantime was wondering should I by a smartwatch, do I really need one? What would I use it for etc... then start googling about it, check some stores at net, ...

Read more

Playing Melodies using Arduino Tone() Function

Arduino is an excellent way to simplify and speed up your microcontroller projects, thanks to its community of developers who have made almost everything look simple. There are lots of Arduino Projects out here for you to try and have fun. Some of your projects might need some sounds action to notify about something or just to impress the viewers. What if I told you that almost any theme songs that cou ...

Read more
Scroll to top