This is the second experiment for Amarino shield. If you do not know anything about Amarino toolkit or this shield please click on the following links: About Amarino toolkit About Amarino shield You can get a list of other experiments at the end of this post. Before you try this experiment, we recommend you to…
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…
Description: This tutorial is about mp3 mode of WTV020SD-16P module. With this simple circuit, you can play AD4 format music files. At the end of the article, you can see a video output of this simple and easy project.
A digital cricket scoreboard does not have to be enormous, permanently installed or complicated to operate.
Our 32 × 64 cm four-display cricket scoreboard is designed as a practical option for community clubs, junior cricket, schools and local competitions.
The scoreboard contains four individual 32 × 16 cm outdoor P10 LED displays showing the four important match values: Runs, Wickets, Overs and Target.
Using separate displays means spectators do not have to wait for information to rotate onto the screen.
This is a simple RC circuit using thyristor. You might have done similar projects using transistors. Let me provide you some of my previous RC projects: a. Basic RC project You can make several projects with this module, for example, Remote tester, object counter, etc.
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
Description: Here’s a simple DIY clap switch circuit. The circuit is mainly composed of an audio frequency and a bistable trigger circuit. Q1 and Q2 together form an amplifier circuit. MK1 (electret microphone) accepts Clap/Audio signal and that enters to transistor Q1 through the coupling capacitor C1 and enters to Q2 base through collector directly after getting…
A relay is an electrically operated switch. Current flowing through the coil of the relay creates a magnetic field which attracts a lever and changes the switch contacts. The coil current can be on or off so relays have two switch positions and they are double throw (changeover) switches. The relay’s switch connections are usually labeled COM(POLE), NC…
This is a basic electronic kit for beginners and hobbyists. It has a CD4511 chip that is a BCD to 7 segment latch decoder driver. It is a very popular chip and used widely in seven segment display projects. You can send pulses to this kit (via NE555 or any other pulse generator) and the…
HOW TO USE AN ELECTRET MIC Read about 4- in -1 DIY KIT:Â http://www.buildcircuit.com/4-in-1-diy-kit-dark-sensor-latch-circuit-astable-multivibrator-and-clap-switch/
This is PAGE 2/2 of the article titled “How to make one transistor FM transmitter on a stripboard”. Go to previous page. Continued…. Now, solder C8 (0.1uF- code 104) capacitor. One terminal of the capacitor is connected to the +ve and the other to the -ve terminal of battery. After connecting C8, it is not…
This is a 2x8W audio amplifier board integrated with Bluetooth 4.0. It has a perfect class-D architecture (based on TPA3110D2) and every channel has 8W power output. This board can be powered by any DC 8V-16V power supply. It can be used to drive any 4Ω or 8Ω passive speakers.
This is a 2x100W audio amplifier board with a new Audio B plus Bluetooth module that supports Apt-X. It has integrated ST high-performance TDA7498 chip which supports dual channel audio amplification. Both of the channels are capable of outputting nominal power simultaneously and continuously. This board can be powered by any DC12V-39V* power supply.
This Arduino shield helps to drive various loads like a solenoid, valve, motor, inductive actuator, heater, and bulb. A wide supply range 8V-60V and a load current of 2.7A allows it to be used with a variety of actuators. The board can be used as a stand-alone driver or it can be controlled by Arduino…
This circuit has been configured in Astable mode. The output pulses are determined by the values of resistors R1, R2 and the timing capacitor C1. The formula for the frequency of pulses is: f= 1.44/[(R1+2R2)*C1].
The high and low time of each pulse can also be calculated.
This is one of the simplest and easiest experiments using Bluetooth Module , Android and Arduino. You just need an Android serial emulator, any type of emulator should work for this experiment. I recommend Blue term , you can find this application on your Android Market (Google Play).
The ADXL203 Module  is high precision, low power, complete dual-axis accelerometers with signal conditioned voltage outputs, all on a single, monolithic IC. The ADXL203 measure acceleration with a full-scale range of ±1.7 g, ±5 g, or ±18 g. The ADXL203 can measure both dynamic acceleration (for example, vibration) and static acceleration (for example, gravity).The typical…
TSA9840 2x20W audio amplifier board comes with  Audio B plus Bluetooth module. It has a perfect class-D architecture (based on MAX98400A) and each channel has 20W power output. Both channels are capable of giving nominal power output simultaneously and continuously.
This Bluetooth music receiver connects to the Line-In or Aux input on your home audio system. You can then stream audio from your Bluetooth enabled cell phone or mp3 player to your home audio system.
