In this tutorial, we will learn to use a 16×2 LCD with Arduino. The following image shows the pinout of 16×2 LCD. Components required for this project: Name Quantity Component U1 1 LCD 16 x 2 R1 1 Potentiometer 10k U2 1 Arduino Uno R3 R2 1 220 Ω Resistor
In this tutorial, we will create a sketch in which the RGB LED emits only the green light that turns on and off gradually. In the second example, you will see that red, green and blue lights also turn on and off gradually. This project is suitable for school students and beginners. For this experiment,…
In this tutorial, we will use the digitalRead function and learn how to read a digital pin. In our case, the digital sensor that will be read will be a common button/reset tactile switch that when pressed will turn on the LED. Components required: Name Quantity Component U1 1 Arduino Uno R3 D1 1 Green…
In this tutorial, we will use a servo and a potentiometer to make the servo motor change its position according to the given value given by the potentiometer. Components used in this project: Name Quantity Component U1 1 Arduino Uno R3 Rpot1 1 10 kΩ, Potentiometer M1 1 Servo Arduino Sketch:
It’s a simple project to build a stereo preamplifier using electret microphones and the cheap operational amplifier LM358. In the past, we have made few projects comprising LM358, you can check them here. This project uses the dual-channel operational amplifier LM358. Each channel is used to increase the signal of one electret microphone and it…
This is just a simple Arduino project comprising Arduino, LM35, and I2C LCD. It displays the room temperature on the I2C LCD and the serial monitor. The project is suitable for beginners and can be used for school projects. In the past we have done several projects using LCD and LM35, please check the projects…
This is a simple motion sensor project using Arduino. A 220V AC lamp is connected to a 5V relay and the relay is activated once the motion sensor senses motion and sends a signal to the Arduino. List of materials Arduino Uno (Â Rev 3Â ) Sensor (Â PIRÂ )Â Â HC-SR501 Keyes SRD-05VDC-SL-C Relay Module or any 5V relay module…
In this tutorial, we will learn how to use a servo motor. A Servo is a motor capable of making maximum rotations of 270° and is widely used in robotics and modeling. It requires a library (<Servo.h>) that is already installed on the Arduino IDE software. In this tutorial, we will vary the position of…
In this project, we will learn to experiment with LDR and a buzzer. The output of this experiment is sound with different frequencies that are produced depending upon the light falling on the LDR/photoresistor. STEPS – Connect the negative black wire of the buzzer to pin GROUND and the black positive to the digital pin…
In this tutorial, we will learn to use a potentiometer with Arduino. It allows us to change its value by turning a small knob, the analog value read by Arduino will enable us to do our flashing of the LED depending on the value read. Steps: -Connect the LED as shown on the image. -Connect…
The photoresistor or LDR is a resistor that varies its value according to the light falling on it and therefore it can be used with Arduino to create innovative and more complex projects. Connect the LED and LDR to Arduino as shown on the image. List of components: U1 1 Arduino Uno R3 R1 1…
This is the most basic project for Arduino beginners. Almost everyone starts Arduino with this project. The output of this project is a blinking/flashing LED. Insert an LED on your breadboard and connect it to your Arduino using wires as shown on the image. We can also use the inbuilt LED present on the Arduino…
This project shows a combination of analog and digital circuits ready for interactive sound production! The project uses Arduino and NE555.
This fully assembled sound/clap operated switch can be used for turning on your 100-240V AC light bulbs. Usually, we use a clap switch to operate a lamp and it can easily do that for you. The kit responses to clap up to distance of 5 meters, but, the further you go, the louder the clap…
We are now selling fully assembled CLAP SWITCH(shipped from Sydney, Australia). Click here to visit the product page. If you have come to this page from a search engine, we recommend you to visit the page about DIY clap switch. In this article, we are going to describe how you can use the “do-it-yourself(DIY) clap…
Just started electronics ? And you don’t know any engineering behind your projects and you are afraid of failure ? Then, this article can help you get started in electronics. Usually, success in initial projects plays important role in electronics amateurs and engineering students’ career. Many students quit electronics because they fail in their first,…
This is a very popular digital click for beginners. It is a DIY Kit. It is now available at BuildCircuit Store. It is based on AT89C2051-24PU. Basic Functions: 1. Hour and minute display & minute and second display 2. Two alarms set up There is a buzzer that works as an alarm. When the clock reaches…
The circuit is ready for testing. Connect battery terminals and see the output. As you block light falling on LDR(Light dependent resistor), the LED glows.
OUTPUT:
[youtube]http://www.youtube.com/watch?v=qmWAgoHwy3w[/youtube]
THIS CIRCUIT IS EXTREMELY SENSITIVE TO DARKNESS. EXPERIMENT THE CIRCUIT IN A HIGHLY ILLUMINATED ROOM.
LED GLOWS EVEN IN LESS DARKNESS. Use torch light if the LED glows in less darkness. You can adjust the sensitivity of the circuit using a variable resistor in place of R3-300Ohm. Try this circuit with other resistances as well, for example, 1K, 10K and 100K, etc.
In this article, I am going to show how to plan and make a single transistor FM transmitter on a stripboard (prototype board). This project has been tested in a 5 storey building and it works perfectly well. You can transmit your voice or audio signals from your computer or music player to a distant…
We are not this FM transmitter DIY Kit with an enclosure. Here’s one of the easiest, simplest and the most popular FM transmitter for amateurs and electronics beginners. With this DIY kit, you can transmit your voice or audio over an ordinary FM radio within the FM broadcast band. It is a DIY kit designed…
