IR REMOTE VOLUME CONTROLLER
SCHEMATIC PARTS LIST PCB DOWNLOADS IR_remote_volume_controller.pdf
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Arduino Project 6- Servo control with a potentiometer
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:
Arduino Project 27-Arduino RGB LED experiment
In this tutorial we will learn how to change the color of an RGB LED connected to Arduino, alternating for two seconds the following colors: red, green, blue, and then orange, yellow, indigo and purple. It is similar to the previous  fade led effect experiment but it is not limited to only one LED but there…
DIY KIT 11- Jaycar’s No Brainer Amplifier project
This is basically an audio amplifier with one sound channel. Build the kit and connect it to an audio source using a mono jack. You will need two kits to make it stereo amplifier. The source can be your another FM radio project, mp3 project, etc.
2 x 50W Class D Bluetooth Audio Amplifier Board – TSA3117B(Apt-X)
TSA3117B is designed for mass production and DIY users. Bluetooth/LINE IN select switch and audio input port are designed as JST connectors. So, users can install this amplifier board in a box and connect an external switch and RCA/Mono plug to make their own audio amplifier.
1.6W MONO AUDIO AMPLIFIER
1.6W Mono Audio Amplifier Project is based on TDA7231, which is class AB power amplifier with a wide range of supply. FEATURES Power supply: 5 To 12 VDC Output: 1.6 W, 4 Ω / 1 W, 8 Ω Low crossover distortion, soft clipping PR1 Preset for Volume Adjust Terminal pins for connecting power supply, input…
Simple experiment with Bluetooth and Arduino
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).
How to connect a lamp to DIY relay module for the popular clap switch
If you have come to this page from a search engine, we recommend you to visit the following pages: 1. About Relay module for the popular clap_switch (Get description of this kit) 2. How to connect clap-switch to the relay module 3. How to use the relay-module and the clap-switch to operate electrical appliances In…
Latch-up circuit using 555 and opto-coupler
Here’s a simple latch-up circuit using 555 timer and opto-coupler MCT2E. You can also use PC817 in place of MCT2E. The NE555 timer is configured in astable mode.The components are selected in such a way that the frequency output of the astable circuit lies within the audio range. Opto-coupler, MCT2E is is used for latching…
DARK SENSITIVE SWITCH
Dark Sensitive switch project based on single BC547 transistor, Relay operates when light that falls on the LDR, goes below a set point. It’s very simple and low cost dark sensitive switch required few components. FEATURES Input : 12 VDC @ 55 mA  Relay output : NC – C – NO  Onboard preset to set…
12W Dimmer with soft start for 12V LEDs
The circuit presented here is a LED dimmer with a soft-start function. The board can drive a LED up to 12W and the circuit can manage a load up to 1A continuous with 12Vsupply. The circuit is built using SG3525 PWM IC and the IRFR120 MOSFET, SG3525 generates the PWM, and IRFR120 MOSFET drives the 12W max load. BC847…
BuildCircuit’s breadboard power supply DIY kit
Here is a very simple breadboard power supply kit that takes power from a DC wall wart and outputs a selectable 5V or 3.3V regulated voltage. The .1″ headers are mounted on the bottom of the PCB for simple insertion into a breadboard.
MINI STEREO AUDIO AMPLIFIER
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…
Amarino shield 3.0 experiments- Android and Arduino
On this post, you will see how Amarino shield can be used for Android- Arduino experiments. It shows some basic experiments with android serial emulator and Amarino toolkit. You can get the original Amarino source codes and installable files also. Just install the application on your Android phone and experiment with the kit. This page…
Assembly Guide- WTV020SD-16P evaluation board- DIY kit
This product is outdated. We are now selling DFplayer mini that easily plays mp3 files. It is far better than WTV020SD-16P module. This post shows you how to assemble the WTV020SD-16P evaluation board. You can get full description of this kit on this page. The assembly process is straight forward. It can be easily assembled...
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8 DIGIT NUMERICAL 7 SEGMENT SPI DISPLAY SHIELD FOR ARDUINO UNO
8 Digit serial numerical display shield for Arduino has been designed for various applications like digital clock, stop watch, score display, temperature meter, frequency counter, digital meters etc. The circuit uses popular MAX7219 IC and two common cathode 0.5inch red seven segment displays. The MAX7219 is a compact, serial input/output common-cathode display drivers that interface…
10 LED BAR-GRAPH DISPLAY WITH OP-AMP SHIELD FOR ARDUINO NANO
Arduino Nano Bar-Graph display with universal op-amp shield consists of 10 LEDs and single low voltage general purpose LMV321 op amp including few capacitors and resistors connected to op-amp pins. The op-amp proto area can be configured without any modifications to the board and all that is necessary is to select the correct resistors and…
Basic trigger module for up down counters
The ‘basic trigger module’ works as a basic controller for up and down counters or seven-segment display drivers. It has 3 switches for up count, down count, and reset. Up switch increases the count and down switch decreases the count and the reset switch resets the count to zero. How does it work ? All...
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