BuildCircuit.COM – Page 13 – Basic Electronics, Arduino, Amplifiers and Scoreboards

How to use infrared module with Arduino

BuildCircuit15 years ago6 years ago02 mins

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…

Water Level Indicator

BuildCircuit15 years ago6 years ago141 mins

We can use the logic of making an automatic light detector to make a simple water level indicator.We just need to remove LDR from the circuit and put the wires into water, then it simply works as water level indicator. There is a specific resistance between the wires that are dipped into water and conduction of electricity through water gives biasing voltage to base of transistor.

The sensitivity can be adjusted using VR1. Put 470K variable resistance in VR1.

TSIR04 – 4 Channel Outputs- 4 optically Isolated Inputs USB Relay Module

BuildCircuit2 years ago2 years ago04 mins

TSIR04 is a USB relay with optically isolated inputs and OLED display and temperature sensor port. It allows computer control switching of external devices by using the USB port of your computer. The communication medium also can be changed easily. Replace the USBBee module with a WiFiBee, it becomes a WIFI relay. It will be a Bluetooth relay when…

Arduino Project 15- Arduino Motor Control With L293D OR SN754410

BuildCircuit7 years ago6 years ago01 mins

As stated on the title, in this tutorial, we will rotate a motor in both directions. To achieve this, we can use a switch or the serial monitor. We will need an integrated circuit chip (IC), called H-Bridge, we will use a L293NE or SN754410 chip for our experiment.

Multi color Lamp using Amarino, Android and Arduino

BuildCircuit15 years ago10 years ago401 mins

This tutorial is for novices who have never made any Android application or worked with Amarino. If you have never done any experiment with Android and Arduino, please start with this experiment. You don’t need to have previous knowledge of Android for doing this experiment. Simply download any Android serial emulator and upload the Arduino code…

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Video- LM35 temperature sensor and LED Controller

BuildCircuit14 years ago6 years ago01 mins

SIMPLE PRESSURE SENSOR AMPLIFIER & OVER PRESSURE SWITCH

BuildCircuit6 years ago6 years ago02 mins

The pressure sensor amplifier built using LM358 op-amp and MPXM2051GS pressure sensor from NXP semiconductor. The circuit provides 4V output for full scale pressure input 0-7.5PSI. One op-amp is used as amplifier and 2nd op-amp is used as comparator to provide an output at set value that can be used as over pressure switch to control…

750mA Constant Current LED Driver Arduino Nano Shield

BuildCircuit6 years ago6 years ago04 mins

This small constant current LED driver Nano shield has been designed using CAT4104 IC from ON semiconductor. Its 4 channel LED driver. The board has provision to mount 20 SMD 1206 LEDs. The LED can be RED, GREEN, BLUE and WHITE. Reduce the number of LED to 12 if White LEDs are used, as white…

Mono 2.5W Class D Audio Amplifier – PAM8302 for basic projects

BuildCircuit10 years ago2 years ago03 mins

You can call this as an upgrade to LM386 based audio amplifier. We are also selling speakers for this module. This is a small but very powerful audio amplifier which is able to deliver 2.5 Watts into 4-8 ohm impedance speakers. It is based on Class D controller circuit that can be operated with 2.0V-5.5V DC….

TOSR02 – 2 Channel USB/Wireless Relay Module

BuildCircuit12 years ago2 years ago03 mins

This USB/Wireless relay module allows computer to control switching of external devices by using the USB port of your computer. It has a wireless extension port, that can work with XBEE or Bluetooth Bee or Wifly modules, which means now you can control your device by Zigbee or Bluetooth or Wi-Fi. The TOSR0x module can be powered by USB…

DARK SENSITIVE LAMP ON/OFF CONTROLLER

BuildCircuit6 years ago6 years ago01 mins

Dark Sensitive Lamp controller project switches a load connected to it when light falling on LDR (Light Dependent Resistor) goes bellow set point. It could be used as an automatic street light application. The project is based on Triac and doesn’t requires additional DC supply, it works directly on 230VAC. FEATURES Mains supply input 230…

2 X 100W Class D Bluetooth Audio Amplifier Board – TSA7510B(TWS/Apt-X)

BuildCircuit12 years ago2 years ago05 mins

TSA7510B is a 2x100W audio amplifier board with a new AudioB plus Bluetooth module that supports Apt-X. It has perfect class-D architecture(Based on TPA3221) and each channel has 100W power output. Both of channels are capable of outputting nominal power simultaneously and continuously. This board can be powered by any DC12V-30V power supply. It can be used to drive…

DIY KIT 9- Light explosion LED effect DIY electronic kit using LEDs, NE555 and CD4017

BuildCircuit7 years ago6 years ago01 mins

This is a basic electronic DIY kit for beginners. The kit generates a light explosion effect with several LEDs. The scrolling of the LEDs is controlled by CD4017 and NE555. You can adjust the speed of the explosion using a potentiometer. You need basic soldering skill to build the kit. It takes about an hour…

Arduino Project 51- RGB LED Control

BuildCircuit2 years ago2 years ago01 mins

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…

50V – 10A Bidirectional DC Motor Driver Using A3941 – Electronics-Lab

BuildCircuit6 years ago6 years ago06 mins

This tiny board designed to drive bidirectional DC brushed motor of large current. DC supply is up to 50V DC. A3941 gate driver IC and 4X N Channel Mosfet IRLR024 used as H-Bridge. The project can handle a load up to 10Amps. Screw terminals provided to connect load and load supply,…

DIY KIT 22- Rain drop sounder circuit using NE555

BuildCircuit6 years ago6 years ago01 mins

This is yet again a very simple astable multivibrator circuit using NE555. The circuit produces a sound that somewhat sounds like a raindrop. This is a very basic electronic kit project for electronics beginners and hobbyists. Anyone with basic electronics and soldering skills can build this easily.

Amarino DIY shield for Android-Arduino-Bluetooth experiments

BuildCircuit14 years ago10 years ago31 mins

About Amarino Shield Amarino shield can be used for doing several experiments with Amarino and Android serial emulators. For example, you can operate a multicolor lamp, sensor graph, light sensor, etc. The shield is just a modification of previous shield designed and published by Sagar Sapkota (Buildcircuit.com). Amarino shield 3.0 has added one more header space…

Optically isolated bidirectional I2C shield for Arduino

BuildCircuit6 years ago6 years ago01 mins

Optically isolator Arduino Shield has been designed to provide optically isolated I2C communication between Arduino and any other device or sensors that works with I2C protocols. I have used the ISO1540 Low-Power Bidirectional I2C Isolator IC from Texas Instruments to build this project, and the device is compatible with I2C interfaces.

2 x 8 Watt Class D Bluetooth Audio Amplifier – TSA3510

BuildCircuit10 years ago2 years ago01 mins

This is a 2x8W audio amplifier that has integrated Bluetooth 4.0. It has perfect class-D architecture and each channel has 8W power output. This board can be powered by any DC 9V-14V power supply. It can be used to drive any 4Ω or 8Ω passive speakers.

Building a circuit on a breadboard

BuildCircuit15 years ago6 years ago301 mins

A breadboard is a device for testing temporary electronics projects. Components used to test a circuit can be reused for other projects. None of the components are damaged.

Almost all people start to learn electronics using breadboard because it is the simplest way of making circuit. The photograph shows a typical small breadboard which is suitable for beginners building simple circuits with one or two ICs (chips).