This is yet another dark/light sensor project that uses a photoresistor. This kit has an LM393 chip and there is a relay also. It is a light operated switch. 【Great School Science Project】: The light operated switch can be a great school project for children. It is widely used to help students learn basic mechanical…
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…
SEE ALL THE PHOTOS ON FLICKR This post shows you how to build the Amarino evaluation shield. When you buy the shield package, you will get the following components. Fully assembled kit is now available on buildcircuit.net. The PCB: PCB clearly shows the pin and component names, so, it should help you to get idea of…
This do-it-yourself(DIY) sound/clap operated switch can be used for switching your 100-240V AC electrical appliances. Usually, we use a clap switch to operate a lamp and it can easily do that for you. The kit responses to clap up to distance of 10 meters, but, the further you go, the louder the clap should be.
Most of the microcontrollers are time-agnostic, meaning they are unaware of the time around them, but it doesn’t matter as most experiments do not require it. But, there are several experiments that require the actual time. For example, most of the experiments related to data-logging require time. The following Real time clock (RTC) module can…
This is yet another electronic dice project from Jaycar. When you press the RED button on the PCB, all 7 LEDs flash for a while and the LEDs that stay on will represent numbers between 1 and 6. This is a basic learning kit for electronic beginners. Basic soldering skill is enough to build the…
An electret is a permanently charged dielectric. It is made by heating a ceramic material, placing it in a magnetic field then allowing it to cool while still in the magnetic field. It is the electrostatic equivalent of a permanent magnet. In the electret microphone a slice of this material is used as a part…
Single Channel Large current relay board with dual DC-DC converter board is mainly designed for Hobby CNC, Routers, and Plasma cutters. Hobby CNC controller requires multiple DC outputs to drive various things. This board provides 5V DC and 12V DC 1Amp each. The dual supply helps driving LPT breakout board, Sensors, Limit switches and few…
This article is about assembly of infrared transmitter used with digital object counter DIY kit. If you have come to this page directly from a search engine, please visit this page first to know about digital object counter. The suggested page gives you more details about this kit. You will eventually come back to this…
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…
DOWNLOAD this arduino code OPTIONAL LINK This article is for beginners who want to learn about transmitting data from Android to Arduino and vice versa. In this experiment, you will see numbers increasing on Serial Monitor of Arduino and same numbers will be seen on Android interface also.
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.
This is a simple do-it-yourself (DIY) remote operated switch. You can use this simple kit to turn ON/OFF a pair of LEDs. This has been designed basically as a learning kit. With this kit, you may learn about TSOP4838 infrared sensor and CD4017 versatile IC.
This is a TSTR04 USB relay board which has an OLED display and 4 temperature sensor ports. In “Normal” mode, you can easily control this relay board by your computer or smartphone via Wi-Fi. In “Auto” mode, you can set a threshold value, to let the relay turn ON/OFF based on the temperature. So, you can use it…
555 timer configured in monostable mode is a simple automatic dark sensor circuit that gives output when light falling on LDR is blocked.
To make an object counter we can use a simple dark detector circuit and a normal calculator. Pole and NO (Normally Open) terminals of a relay have to be connected to the two pins which are used to activate ‘=’ key of calculator.
As we block the light falling on LDR, the calculator starts counting.
For the calculator to work as a counter, we first need to press ‘1’ and ‘+’ keys.
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…
