BuildCircuit.COM – Page 9 – 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…

Arduino Project 7- Button tactile switch and LED

BuildCircuit7 years ago6 years ago01 mins

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…

+/- 1.7G DUAL-AXIS IMEMS ACCELEROMETER USING ADXL203

BuildCircuit6 years ago6 years ago07 mins

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…

2 x 20W Bluetooth 5.0 Networking Audio Amplifier Board – TSA1740

BuildCircuit12 years ago2 years ago01 mins

TSA1740 is a 2x20W Bluetooth 5.0 audio amplifier board. It has a digital amplifier chip YDA174 on the board. It is a 20W×2CH high performance digital audio power amplifier IC with two DSPs. This board can be powered by any DC 10V-18V power supply. It can be used to drive any 4Ω or 8Ω passive speakers.

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,…

SINGLE 18650 LIPO BATTERY TO 5V BOOST CONVERTER

BuildCircuit6 years ago6 years ago01 mins

This small board is based on the CS5171 boost converter from ON Semiconductor. The board is configured to be used with a single 18650 LiPo battery. The circuit converts single-cell 3.7V LiPo battery voltage to 5V with a load current up to 400mA. Board has been designed to fit on the backside of a single-cell battery holder…

Enable Bluetooth Audio Amplifier Pin Code (Password)

BuildCircuit8 years ago6 years ago06 mins

Enable/Change The BT Pair number All of our Bluetooth audio amplifier boards and Bluetooth audio receiver boards use AudioB plus module as the core bluetooth receiver module. The default bluetooth name is “BT SPEAKER”. Maybe you want change it to a special name or add a password to this module. We just updated the AudioB plus design…

Latch-up circuit using 555 and opto-coupler

BuildCircuit14 years ago6 years ago42 mins

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…

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….

RS485 Shield For Arduino Nano

BuildCircuit6 years ago6 years ago01 mins

Arduino Nano RS485 shield will help you to transmit and receive serial data using the twisted pair RS485 network. The module provides half-duplex communication. LED D1 indicates receive data, D2 Transmit LED, J1 jumper is optional and not in use in this application. DI/RE connected to D2 of Arduino digital pin which enables Receiver Output…

Ultrasonic range finder on breadboard using Arduino, DYP-ME007 and NE555

BuildCircuit16 years ago6 years ago61 mins

Ultrasonic range finder on breadboard.

1.6W MONO AUDIO AMPLIFIER

BuildCircuit6 years ago6 years ago01 mins

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…

Bluetooth Audio Receiver Board (TWS/Apt-X)

BuildCircuit13 years ago2 years ago01 mins

This is a Bluetooth audio receiver which supports TWS function. This Bluetooth audio receiver connects to the Line-In or Aux input in your home audio system.

TSRU430- 4 Channel 30A USB Relay Board

BuildCircuit13 years ago2 years ago03 mins

The TSRU430 provides four volt free contact relay outputs with a current rating of up to 30Amp each. The module is powered with a 12 VDC supply. The DC input jack is 2.1mm with positive core polarity, DC supplies are required to supply at least 1A at 12VDC. The relays are SPST-NO types. It’s a USB…

Sensor Alarm using thyristor- Basic electronic project

BuildCircuit15 years ago6 years ago11 mins

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.

DIY KIT 25- Multivibrator kit

BuildCircuit7 years ago6 years ago01 mins

This is yet another multivibrator kit. A similar kit article has been published recently. You can see it here.

How to use a 3 pin thermistor based temperature sensor with or without Arduino

BuildCircuit10 years ago10 years ago01 mins

A 3 pin NTC thermistor and LM393 comparator based module can be used to sense temperature or heat. It can be used both with and without Arduino. First, let’s see how you can use it with Arduino. Experiment: In this experiment, we simply increase the ambient heat around the thermistor and we’ll see how the…

Astable mode of 555 timer

BuildCircuit14 years ago7 years ago11 mins

Description: Astable mode of 555 timer is used to generate pulses at regular interval. READ ABOUT ASTABLE MODE. The following schematic has been taken from buildcircuit.com. The following circuit can work as a music generator, Infrared transmitter and LED blinker depending upon the values of R1, R2 and C1.

4 CHANNEL RELAY SHIELD FOR ARDUINO UNO

BuildCircuit6 years ago6 years ago02 mins

4 Channel Relay Shield for Arduino UNO is a simple and convenient way to interface 4 relays for switching applications in your project. Very compact design that can fit on top of Arduino UNO. Project requires 12V DC supply, all 4 trigger inputs require TTL signal, Relay-1 to Relay-4 inputs connected to D8 To D11…