DIY KIT 25- Multivibrator kit
This is yet another multivibrator kit. A similar kit article has been published recently. You can see it here.
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Simple ultrasonic range finder using HC-SR04
Description:The HC-SR04 ultrasonic sensor uses sonar signals to determine distance to an object. It offers excellent range accuracy and stable readings in an easy-to-use package. Its operation is not affected by sunlight or black material.However, acoustically soft materials like cloth can be difficult to detect.
Arduino Project 15- Arduino Motor Control With L293D OR SN754410
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.
TSA6013 – Bluetooth Audio Receiver Board (Apt-X)
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. It comes with a new AudioB plus Bluetooth module that supports Apt-X. Note：TSA6013 can auto-detect the Aux in/Line in Audio input. Bluetooth…
Make a seven segment display using 5mm LEDs
In this post, I am going to explain how I built a basic 3" seven segment display made using 5mm LEDs. This project was made during the research and development phase of Scoreduino project. This is a COMMON CATHODE seven-segment display made with 29 pieces of 5mm LEDs. There is also a driver for this...
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Experiments with LM358
Description: LM358 is also one of the types of operational amplifier. LM358 consists of two independent, high-gain, frequency-compensated operational amplifiers designed to operate from a single supply over a wide range of voltages. This module can also be used for testing an LDR, a phototransistor and a photodiode. You just need to replace an LDR with…
DIY KIT 41- TDA2030A Electronic Mono Audio Power Amplifier Board
TDA2030A is widely used as a Hi-Fi audio amplifier in computer speakers. It has the current limiter as well as thermal shutdown functions. Specifications: Output Power: Maximum 18W Supply Voltage: DC 9V-24V (recommended DC 12V, this voltage to the heat sink requirements are very low. The maximum supply of this board is actually up to…
Digital Object Counter using LDR and digital IC
555 timer configured in monostable mode is a simple automatic dark sensor circuit that gives output when light falling on LDR is blocked.
Remote operated musical bell using UM3481
This article is about remote operated musical bell using UM3481. 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…
How to use a 4 channel IC 2262/2272 RF receiver and transmitter remote control
The 4 channel RF receiver and transmitter can be used with or without an Arduino. You can connect relays to the receiver outputs to control it wirelessly.
TOGGLE ON / OFF SWITCH
This project describes how to build a “soft touch” switch. By “soft touch” we mean that you have to push once to set device ON and push again to set device OFF. This kind of switch works by latching a relay to ON state with push of a button and with another push latch is…
Clap switch- 4 in 1 DIY kit
Get project details: http://www.buildcircuit.com/4-in-1-diy-kit-dark-sensor-latch-circuit-astable-multivibrator-and-clap-switch/
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How to use 315Mhz RF transmitter and receiver modules with arduino
Description: This wireless transmitter and receiver pair operate at 315Mhz. They can easily fit into a breadboard and work well with microcontrollers to create a very simple wireless data link. Since these are only transmitters, they will only work communicating data one-way, you would need two pairs (of different frequencies) to act as a transmitter/receiver pair….
Amarino LED Lamp
Recommended app All the images on Flickr. Amarino Lamp is a versatile programmable LED lamp based on Arduino. The lamp has an inbuilt Arduino as its controller. PWM signals from Arduino are fed into UNL2003A and this chip controls the LED lamp. You can also simultaneously control the lamp with an infrared remote control. It has...
Read More 10 factors that affect the transmission range of DIY FM Transmitters
BuildCircuit sells several types of FM transmitters for electronics beginners and hobbyists. Some are for short-range and some for long-range transmission. Sometimes, customers complain that they didn't get the mentioned quality or the required range of transmission. In this article, I am explaining 10 factors that affect the transmission range as well as the transmitted...
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Dark sensor using BC557
An automatic dark sensor can be made using a PNP transistor(BC557).
Assembly instructions for Amarino 3.0 DIY shield
This post gives you the idea for assembling the Amarino shield. To get full details about this shield, CLICK HERE. When you buy the kit package, you will get the following PCB. The PCB clearly shows the pin and component names, so, it should help you to get idea of connections of components to Arduino. For…
230 VAC TIMER
Classic AC 230 V Timer project can be used in all application requiring a timer of up-to 3 Minutes to operate or control any AC mains load of up-to 200 Watts. This project is based on the Classic 555 Timer IC, triggering a TRIAC. Input and Output is Optically Isolated. SPECIFICATIONS Supply input 12 VDC…
Remote operated musical bell
Remote operated musical bell DIY kit Remote operated musical bell DIY kit is one of the most popular kits designed by BuildCircuit. The kit is very popular among electronics beginners and intermediate circuit players. When you press an Infrared remote (a TV/VCD/DVD remote or a dedicated one) directing towards the remote bell, an infrared(IR) sensor TSOP4838...
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How to use Micro USB 5V 1A Lithium Battery Charging Board/ Charger Module
Here is a simple and a low cost Lithium Battery charging breakout board. This article is about the charger breakout board based on TP4056. It uses a Micro USB for connecting the breakout board to any computer or ‘USB wall adapter’. It works with linear charging method. It offers 1000mA charge current by default but…