Description: Here’s a simple do-it-yourself (DIY) remote operated switch. You can use this simple kit to switch ON/OFF any appliances working on 220V AC. This DIY kit has been designed basically as a learning kit rather than as a household device. With this kit, you may learn about relay and infrared sensor. It can used for fun at home for switching…
This is a 2x8W audio amplifier board with a new AudioB plus Bluetooth module that supports Apt-X. 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 TSRW430 provides a four volt free contact relay outputs with a current rating of up to 30Amp each. The module is powered from a 12VDC 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 Wi-Fi…
For the circuit to work as light operated musical bell, we need to connect the SW1- switch to N/C terminal of relay. LDR has to be kept in a dark case.
Now the FM Transmitter DIY kit comes with a basic 3D printed enclosure. Check out all the images. We have shown how you can install the FM transmitter into the basic enclosure. If you have to come to this page directly from a search site, please go to this article first. This is the second…
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…
The KA2284 is a monolithic integrated circuit designed for 5-dot LED level meter drivers with a built-in rectifying amplifier. It is suitable for AC/DC level meters such as VU meters or signal meters.
This 16×2 LCD shield for Arduino Nano includes various add-ons, like 5 Tactile Switches, 3 Trimmer Potentiometers, LM35 Temperature sensor and the 16×2 LCD itself. It’s a compact shield designed to fit in small enclosures and it is intended to develop measuring devices like thermometers, voltmeters, timers, up down counters and other various project requiring…
Most of the microcontrollers have limited built-in storage. For example, Arduino UNO (Atmega328)has 1Kbytes of EEPROM storage and it might not be enough for all projects. If your project has any graphics, video, audio and data logging feature, you need a removal storage in it.
This is an “Audio VU Meter” or “Sound Level Meter”, it is a general-purpose bar-graph Audio VU meter designed for fun projects. All you need is to hook up one wire to the output of the audio amplifier’s speaker pin along with GND and see the magic. The response of the circuit is very fast…
Description: A multivibrator has identical components(capacitors, transistors and resistors) arranged on the left and right hand sides that can be used to implement a variety of simple two-state systems such as oscillators, timers and flip-flops. In a multivibrator circuit, increasing the value of the two electrolytic capacitors increases the time each LED remains on/off.
A voltage divider network is a fundamental electronic circuit used to divide a voltage into smaller fractions. It consists of two or more resistors connected in series or in a string, which create intermediate voltage points between the supply voltage and ground. Voltage dividers are commonly used for various purposes in electronics, including setting reference…
The circuit is ready for testing. Connect battery terminals and see the output. As you block light falling on LDR(Light dependent resistor), the LED glows.
OUTPUT:
[youtube]http://www.youtube.com/watch?v=qmWAgoHwy3w[/youtube]
THIS CIRCUIT IS EXTREMELY SENSITIVE TO DARKNESS. EXPERIMENT THE CIRCUIT IN A HIGHLY ILLUMINATED ROOM.
LED GLOWS EVEN IN LESS DARKNESS. Use torch light if the LED glows in less darkness. You can adjust the sensitivity of the circuit using a variable resistor in place of R3-300Ohm. Try this circuit with other resistances as well, for example, 1K, 10K and 100K, etc.
Description: This is a simple object counter circuit that counts from 0 to 9. You can make this project using four different modules listed below: Infrared remote tester RC module Counter module Astable module
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.
This kit has retired, but, we have upgraded it. Please CLICK HERE FOR THE UPGRADED AMARINO SHIELD. The upgraded version of Amarino is a better kit with additional features. Fully assembled kit is also available on buildcircuit.net. About “Android- Arduino Bluetooth Communication (BTCOMM) DIY Shield- Version 1.0 and 2.0” : If you are interested in controlling…
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…
The range of a Wi-Fi signal can be influenced by several factors, which can impact its coverage and strength. Understanding these factors can help you optimize your Wi-Fi network for better performance. Here are the key factors that affect Wi-Fi transmission range: Frequency Band: Wi-Fi operates in different frequency bands, such as 2.4 GHz and…
TSA8635 is a compact size and easy to use Bluetooth audio receiver. This Bluetooth music receiver connects to the Line-In or Aux input on your home audio system. You can also stream audio from your Bluetooth enabled cell phone or mp3 player to your home audio system. Note: We can provide OEM/ODM service for…
This is a simple metal sensor DIY electronic kit for electronics beginners. Use 3V-5V battery and take metal to its proximity, it will activate the buzzer. The kit can detect metals up to 5cm. Kit parameters: Supply voltage: 3-5V Dimensions: 66 * 61MM Maximum detection range: 5CM The schematic of the kit is given below:You…
