Welcome to my collection of Arduino Projects. Even if you are just getting started with Arduino, you don’t have to worry about that. Each of the following DIY Arduino projects is covered with detailed step by step tutorial on how to do it yourself and includes circuit schematics, source codes and videos.This collection of Arduino Projects features:Wireless controlAutomationMotors controlRoboticsLEDsand more.Along with my DIY Arduino projects here you can also find project ideas backed up by my detailed Arduino tutorials for various sensors and modules. Using the comments section below, you can also suggest your ideas, as well as discuss anything related to these Arduino projects.I will continuously update this article with all new stuff that I make.Arduino Projects with detailed step by step guideArduino Radar (Sonar)This is one of my most popular project and it’s really fun to build. The radar can detect objects in front of it and map them on PC screen using the Processing IDE.For this project you just need two components along with an Arduino board, and that’s an ultrasonic sensor and small servo motor. The range of the radar can be adjusted to up to 4 meters with 180 degrees rotation.Difficulty: IntermediateRange Measurer and Digital Spirit LevelHere’s another project utilizing the HC-SR04 ultrasonic sensor. This time we will use it to make an distance meter which can measure distances up to 4 meters, as well as, measure square area.The project also includes and accelerometer which is used for the digital spirit level function or for measuring angle. The results are displayed on 16×2 LCD and all components are attached on a custom design PCB.Difficulty: AdvancedArduino Color SorterSorting out objects or products by their color has an important real world application. These types of machines are often used for sorting fruits, seeds, plastics etc. The working concept of these machines is rather simple. All you need is a color detecting sensor and of course a system that feeds the object to the sensor and then sort it out.In this project we will learn how to use a color detecting sensor along with the Arduino. We are going to be sorting out colored skittles but you can use the same sensor and method for sorting out anything else.Difficulty: IntermediateArduino Robot ArmWhen it comes to automated manufacturing, robot arms play big role with so many applications. They are often used for welding, assembling, packing, painting, pick and place tasks and much more. This Arduino project is actually a robotic arm made out of 3D printed parts, servo motors joints and controlled using an Arduino Nano. What’s even cooler we can control the robot arm wirelessly via a smartphone and a custom build Android application.The robot arm has 5 degrees of freedom, so we need 5 servo motors, plus an additional servo for the gripper mechanism. For the communication with the smartphone we use the HC-05 Bluetooth module.Difficulty: AdvancedArduino Robot CarThe combination of DC motors and Arduino is always fun, and so is this project. Here we will build our own robot car from scratch. The car will be powered with Li-ion batteries and two 12V DC motors, and controlled using the L298N driver and an analog Joystick.Through this project we will also learn how H-Bridge and PWM motor control work.Difficulty: IntermediateArduino Robot Car Wireless ControlThis Arduino project is an extension to the previous one, and here we will learn how to wirelessly control the Arduino robot car.You can choose one of the three different methods of wireless control explained in this project, or that’s the HC-05 Blueooth module, the NRF24L01 transceiver module and the HC-12 long range wireless module. Additionally you can learn how to make your own Android app for controlling the Arduino robot car.Difficulty: IntermediateArduino Wire Bending MachineControlling stepper motors using Arduino is without a doubt one of most satisfying things for an Arduino enthusiast. There so many machines based on this motors, like CNC machines, 3D printers, various automation machines etc. This Arduino project is all about that, it describes how you can build such a machine. It’s a machine for bending wire, where with the help of stepper motors we can precisely bend wire and make various shapes and forms out of it.The machine features three stepper motors. With the first stepper we feed the wire to the bending mechanism. Here we have another stepper motor used for the bending the wire at the right angle. There’s also another stepper, for controlling the Z-axis, or this stepper enables the machine to create three dimensional shapes. With this project we can also see how useful 3D printers are for Arduino projects of this type or for prototyping.Difficulty: AdvancedRFID Access Control SystemRFID technology has wide range of applications and access control is one of them. We often encounter this in hotels for accessing our room or at work for checking in or accessing restricted areas.In this project we will learn how to use the Arduino to make an RFID controlled door lock. The system consists of an MFRC522 RFID reader and RFID tags/ cards that are based on the MIFARE protocol.Difficulty: IntermediateArduino Game ProjectThis game project is based on the popular Flappy Bird game for smartphones. Using the touch screen we control the bird while trying to avoid the pillars.For this project we need a 3.2 inches TFT Touch screen, an TFT Mega shield adapter and an Arduino Mega board. The code is a bit longer but everything is explained in details.Difficulty: AdvancedArduino LED Matrix Scrolling TextIn this project we will control LED Matrices using the MAX7219 driver. This driver can control up to 64 individual LEDs while using only three wires. Also we can connect up to 8 drivers in series and still using the same wires.To make this project more interesting I also added an example where you can update the text on the LED matrixes through your smartphone using a custom-made Android app.Difficulty: AdvancedArduino Camera Slider with Pan and Tilt MechanismCamera slider are great for capturing cinematic shots, and having pan and tilt system on top of it even further increase the possibility to capture better shots. In this project I will show you how you can build your own one, which costs way less then one found in the stores and still you can get great and super-smooth shots.The slider has three NEMA 17 stepper motors controlled via the A4988 stepper drivers and the Arduino Nano board. Using a joystick we can control the pan and tilt movements and using a potentiometer we can control the sliding movement. With this DIY camera slider we can use the Set button to set two different IN and OUT points, so the camera can automatically move from one to the other point. Personally, considering all my Arduino projects so far, I found this to be the most practical for me.Difficulty: AdvancedArduino Alarm SystemIf you ever thought of making your own security system then this project is a great starting point. Here we will utilize an ultrasonic sensor for detecting movement.If a human or object passes in front of the sensor, the alarm will be activated. For deactivating the alarm you will have to enter a password using a keypad.Difficulty: IntermediateArduino Music Player and Alarm Clock with Touch ScreenIn this project we will learn how to build our own music player. It features a touch screen, MP3 player, a temperature sensor and an alarm clock.The code behind this project is a bit more complex with around 550 lines but everything is explained in details with comments for each lines. There is also a detailed video explanation for it.Difficulty: AdvancedDIY Vending MachineIf you are interested in building something more complex with Arduino then this project is the one for you. Although complex, you could easily recreate it as there is a detailed step by step explanation on how everything works, including circuit schematics and source codes.The structure of the machine is made out of MDF. For discharging the items I used continuous rotation servo motors, while for the carrier system I used two NEMA17 stepper motors. For detecting the coins the machine uses an infrared proximity sensor.Difficulty: AdvancedArduino Based Interactive LED Coffee TableAt first glance this table looks like a normal coffee table but once you turn on the power on it gets to a whole new level. The table has 45 sections which can glow in any color we want, plus it reacts on objects placed on top of it.The heart of the table is an Arduino which controls the 45 WS2812B Addressable LEDs and the objects on top of the table are detected using infrared proximity sensors. What’s even cooler it has built-in Bluetooth module which enables interaction with a smartphone for selecting the LEDs colors.Difficulty: AdvancedArduino Wireless Weather StationThis Arduino project idea is rather practical because it features indoor and outdoor temperature and humidity measurement. It is based on the DHT11/ DHT22 sensor, the NRF24L01 transceiver module for the wireless communication and the DS3231 RTC. For the display we can either use 16×2 character LCD or a 3.2 inches TFT touch screen.The outdoor unit can be powered with batteries and the indoor unit with an AC adapter. The outdoor unit measures the temperature and the humidity and sends the values to the main indoor unit. Here these values are printed on the LCD along with the data and time values from the DS3231 real time clock module.Additionally, we can use SD Card module for storing the data onto Micro SD card.Difficulty: IntermediateArduino Projects IdeasThe following section of this article contains Arduino projects ideas based on my detailed tutorials on various sensors and modules, as well as your suggestions from the comments section below.For each project idea I will point out the required components as well as the particular tutorial for each of them.Android Smartphone Controlled Power Outlet Using ArduinoControlling your home power outlets via a smartphone is the first step in home automation. You can easily make your own Arduino controlled power outlets utilizing the knowledge you can get from my Arduino tutorials. For this project you just need two components along with the Arduino board. An HC-05 Bluetooth module and a 5V Relay module for which I already have detailed tutorials. For powering the Arduino and the relay you can use 220/ 110V AC to 5V DC converter.Using your smartphone you can connect and control your power outlet via Bluetooth. You can either use some already made apps for controlling Arduino from the Play Store or create your own custom made app. In this way we can also control the power outlets through voice control commands.Difficulty: AdvancedHome Automation using ArduinoHome automation is one of the most popular Arduino projects nowadays. The goal of this project is to remotely control anything in your house like lights, appliances, temperature, security devices and so on, with a single device or your smartphone.In order to make such a project we need decent amount of knowledge in Arduino. The following home automation concept that I suggest is based on my detailed Arduino tutorials for various sensors and modules.So the idea here is to have a master unit which includes a touch display, and several slave units which will execute commands coming from the master. As for the wireless communication we can use the NRF24L01 radio frequency modules, and each slave unit can have various functions like, temperature monitoring, power outlet control, lights control, security alarm and so on.Of course, there are endless possibilities and combinations for building a home automation system using the Arduino board. You can always change and add more devices. You can also make a Bluetooth communication so you can control all of this using your smartphone etc.Difficulty: AdvancedArduino QuadrupedMaking biologically inspired robots is very popular among engineering students. This Arduino project is a simplified version of mimicking a spider, where instead of 8 legs we have 4 legs. Each leg have three joints, and for each joint we need a servo motor. That means that we need total of 12 servos for this project. For controlling this robot we can simply use the Arduino Servo library because it supports controlling of up to 12 servos without any additional driver. We can connect all servos to 12 digital pins of the Arduino. As for programming this project, you can start with my Arduino servo tutorial which explains how to control the servos. Then of course, it’s all about testing how to get the proper movements and enable the robot to move in the desired way. More details for this project coming soon.Difficulty: AdvancedArduino Gesture ControlThe idea for this project is to remotely control an Arduino project using hand gestures. Let’s say we want to control the Arduino Robot Car that we mentioned above. So instead of the joystick we will use an MEMS module for the control.We can use the GY-80 module which features an accelerometer, a gyroscope and a magnetometer. Then the data we are getting from these sensors to control the steering of the robot car. As for the wireless communication we can use the NRF24L01 transceiver modules.You can also check my Mechatronics Final Year Project where I used a similar method for controlling a 3D model in Matab Simulink.Difficulty: AdvancedFeel free to ask any question in the comments section below and don’t forget to suggest some more Arduino projects.