This project is a 6.5W Stereo Audio Amplifier based on TDA2004 IC. DESCRIPTION The 6.5W Stereo Audio Amplifier project built around TDA2004 IC. The TDA2004 is a class B dual audio power amplifier, specifically designed for car radio applications etc. SPECIFICATIONS Power supply input 15 VDC Output power: 2 X 6.5 W, 4 Ohm / 2 X…
Description: In this clap switch we use three different modules given below. It is necessary to make these three modules in order to make a clap switch. a. Dark sensor using 2 transistors. b. Monostable mode of 555 timer. c. Toggle switch using 555 timer.Â
Light operated switch works with NE555 timer and light dependent resistor. It uses relay and toggle switch idea for operation.
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.
I was testing a couple of low-cost laser diodes that come from china and I was wondering why those diodes don’t have any protection/driver circuitry. Those diodes come with a simple series resistor for current control which is not a good idea nor stable.
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 another Arduino Nano shield which can drive a Brushed DC Motor in both directions with PWM signal for speed control and it also includes current trip feature. Project is based on DRV8870 IC which can handle current up to 3.6Amps, The shield also includes an IR sensor and trimmer potentiometer. Trimmer Pot helps to develop speed motor control application,…
This is a Wi-Fi Relay remote control kit that includes: 1 x 2 Channel USB/Wireless Relay Module 1 x Wi-FiBee WiFi module 1 x Xbee USB adapter 1 x Mini USB cable You can easily control this relay module by your computer using Wi-Fi. Note: Please remove the Wi-Fi module when you use USB connection. USB/Wireless Relay module…
It is a simple LDR based ‘Happy Birthday To You’ music player. When you block the light falling on the LDR, the kit stops playing the music. There are 18 flashing LEDs and the buzzer plays “Happy Birthday to You” song. A photoresistor or LDR works here as the photosensitive element. The jumpers are used…
HOW TO USE AN ELECTRET MIC Read about 4- in -1 DIY KIT:Â http://www.buildcircuit.com/4-in-1-diy-kit-dark-sensor-latch-circuit-astable-multivibrator-and-clap-switch/
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 yet another NE555 based DIY kit for electronics beginners. A long time ago, I had published this project on this page: https://www.buildcircuit.com/sound-generator/ The electronic kit presented in this article is exactly the same circuit that I had published previously. The circuit is an astable mode timer. The output frequency of the NE555 varies…
Here’s one of the easiest, simplest and the most popular FM transmitter for amateurs and electronics beginners. With this DIY kit, you can transmit your voice or audio over an ordinary FM radio within the FM broadcast band. It is a DIY kit designed by Sagar Sapkota. You can buy this kit at BuildCircuit Store….
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…
This is yet another digital clock DIY kit for electronics beginners. I have previously published several posts related to the digital clock. This kit is no different from those kits, it also displays time and the additional functions and temperature display and alarm. It also has a photoresistor which makes it sensitive to ambient light,…
The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only…
TSA6175 is a Bluetooth 5 multipoint audio receiver. You can have many TSA6175s paired and work together. You can also let it work like a normal Bluetooth audio receiver. 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…
In this tutorial, we will learn to make a countdown seven segment display project that counts in a sequence from number 9 to 0. To start counting, you need to press the tactile switch. At the end of counting, it flashes the LED and rings the buzzer for a few seconds.
