In this tutorial, we will learn to make a buzzer sound like an ambulance siren and at the same time we will flash an LED. We will learn to change the frequency of the sound to make a two-tone sound. If you want you can insert a potentiometer to increase or decrease the volume.
This is a basic up and down counter module for Arduino enthusiasts CD4029 is a presettable binary/decade up and down counter chip. Scoreduino app has a feature to control the CD4029 based up and down counter module. You can connect the CD4029 counter module to Arduino and send up and down signals via Bluetooth. It…
This project is an one Channel Relay Driver suitable for a variety of projects. DESCRIPTION Single Channel Relay project is a simple and convenient way to interface a relay for switching application in your project. SPECIFICATIONS: Input – 12 VDC @ 42 mA Output – SPDT relay Relay specification – 5 A @ 230 VAC…
This is a simple CD4060 based LED and music kit for beginners. The kit flashes the different color LEDs and plays monophonic music, that’s all. The CD4060BC is a 14-stage ripple carry binary counter. The counter is advanced one count on the negative transition of each clock pulse. The counter is reset to the zero…
If you have come to this page from a search engine, please check this article to know about clap switch. Follow the given steps to assemble the DIY clap switch. Step 1:Collect all the required components for assembling the kit. Step 2: Read and confirm the specifications of the components. Step 3: Insert all the resistors in…
This is a 2x8W audio amplifier board integrated with Bluetooth 4.2 . It has 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. The highlight point is Apt-X and TWS supported. Therefore,…
5 LED VU Meter kit is based on LB1409 IC from SANYO, which will indicates the volume level of the audio signal it senses SUPPLY 12V DC @ 50mA PR1 REF SET PR2 AUDIO LEVEL SET SCHEMATIC PARTS PCB DOWNLOADS Audio_VU_Meter.pdf
We all know that troubleshooting is a process of identifying and solving problems that cause a circuit to malfunction. This article is about troubleshooting basic and amateur electronic projects, not about sophisticated devices . With the exception of minor problems,troubleshooting sophisticated systems at the circuit level, like computer, VCR, mobile phones, etc. requires special skills,…
“Cosmarino is a kit for experimenting Android-Arduino communication via Bluetooth.” Features: Control RGB LED with Android phone Display photoresistor sensor data on a graph on Android phone Transmit LM35DZ temperature sensor data on Android phone Control 5V relay with Android phone Control 5V relay and LED with any infrared remote control This is Cosmarino- A…
This project is a Mini Stereo Audio Amplifier based on TDA2822 IC. DESCRIPTION The dual low power amplifier built around TDA2822 8pin DIP. IC, it is mainly designed to use in portable players, radios and other building block project. A 3V supply can be used to drive headphones providing 20mW in 32 Ohms per channel, and a…
This is a project that we have done several times in the past. Serial communication between Arduino and Bluetooth is very easy. There are several apps available online that you can use to control Arduino using smart phone app and also send data from Arduino to your smart phone. In this particular experiment, we will…
This is a 2x8W audio amplifier board with AudioB plus Bluetooth module. It has 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.
The M348X series IC is a mask-ROM-programmed multi melody generator , implemented by CMOS technology.It is designed to play the melody according to the previously programmed information and is capable of generating 16 songs with 3 instrument effects : piano, organ and mandolin. The device also includes a pre-amplifier which provides a simple interface to the driver circuit. The M3481…
This is yet another sound activated LEDs circuit. I have previously published a similar project.
This is a MAX7456 OSD ( On Screen Display) shield for Arduino. The user can easily interrupt and overlay text and/or graphics onto a video signal (PAL or NTSC). It’s just about “plug-and-play” with an Arduino board. Plug this shield over Arduino main board and upload the given test sketch. Plug in your video signal to…
With this project/application, you can make a light sensor dependent lamp. You can make a light sensor or dark sensor with this application. The light sensor of your Android smart phone senses ambient light present in your room and sends commands to Arduino board. Your Arduino program determines the behaviour of the LED, whether it…
This article is about playing music files using WTV020SD-16P and Arduino. This experiment is suitable for amateurs and beginners. WTV020-SD module is a voice rewritable content type of mass storage voice module, pluggable maximum capacity of 1 GB SD card memory. It can load WAV format files and AD4 formats files. WTV020-SD module voice chip…
This project is similar to the following projects: 1. ON and OFF LED using infrared sensor 2. PWM experiment using infrared sensor For this particular and the above listed experiments, you need this library: arcfn.com/files/IRremote.zip See the following image to know how to fix the infrared sensor on the breakout board. http://arcfn.com/files/IRremote.zip#sthash.wIx2Q2Mr.dpuf http://arcfn.com/files/IRremote.zip#sthash.wIx2Q2Mr.dpuf http://arcfn.com/files/IRremote.zip#sthash.wIx2Q2Mr.dpuf Datasheet…
This is another Arduino Nano shield which can drive a Brushed DC Motor in both directions with PWM signal for speed control and it also includes current trip feature. Project is based on DRV8870 IC which can handle current up to 3.6Amps, The shield also includes an IR sensor and trimmer potentiometer. Trimmer Pot helps to develop speed motor control application,…
This kit is designed for amplifier manufacturer and DIY users. A volume knob, weatherproof panel mount LED and a TSA2210 amplifier board is included in this kit. Users can adjust the Bluetooth audio volume either on the smartphone or turning the real knob physically. You can power this kit with a 12V DC power supply…
