Here is a very simple breadboard power supply kit that takes power from a DC wall wart and outputs a selectable 5V or 3.3V regulated voltage. The .1″ headers are mounted on the bottom of the PCB for simple insertion into a breadboard.
This is a simple serial lcd do-it-yourself (DIY) kit based on Arduino. I derived this kit from the open source eagle file available on sparkfun.com. Â The only difference is that I used low cost components to make it more affordable. It uses the libraries and examples published on the quickstart page of sparkfun.
In this tutorial, we will turn on and off the LEDs sequentially, such as Christmas tree lights.
This is a very popular digital click for beginners. It is a DIY Kit. It is now available at BuildCircuit Store. It is based on AT89C2051-24PU. Basic Functions: 1. Hour and minute display & minute and second display 2. Two alarms set up There is a buzzer that works as an alarm. When the clock reaches…
TSIR04B is similar to TSIR04. In this device, we have removed the OLED display and put the relay board in a plastic enclosure. This is a TSIR04B Bluetooth version relay board with optically isolated inputs and temperature sensor port. You can easily control this relay board by your computer or smartphone using Bluetooth. The communication way…
BuildCircuit has previously published a project on HCSR04 ultrasonic range finder module. You can checkout the article from this link. Now, we have another article on HCSR04. It is as simple as the previous project. HCSR04 ultrasonic range finder module: The HC-SRO4 is an ultrasonic sensor which uses sonar to detect objects at a distance…
Arduino Code: DOWNLOAD It is a very popular project. You can get full instructions for making this project on http://www.arduino.cc/en/Tutorial/Ping. In the site, you can see other projects related to ultrasonic range finder.
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…
In this article, you will know about three easy, useful and absolutely FREE Android applications that facilitate serial communication between Arduino and Android via Bluetooth medium. Before moving on to applications, you can check this article to know about the fundamentals of Android-Arduino communication using Bluetooth. Now, let’s start with the applications first, then we…
The circuit presented here is a LED dimmer with a soft-start function. The board can drive a LED up to 12W and the circuit can manage a load up to 1A continuous with 12Vsupply. The circuit is built using SG3525 PWM IC and the IRFR120 MOSFET, SG3525 generates the PWM, and IRFR120 MOSFET drives the 12W max load. BC847…
I have written several posts similar to this one before. This experiment is again about a dark sensor based on LDR or photoresistor. There are a few components and basic soldering experience should be enough to build this up. It is a good and easy kit for electronics beginners.
A single-transistor FM transmitter DIY kit is a simple electronic circuit that allows you to broadcast an audio signal wirelessly using frequency modulation (FM). Such kits are popular among electronics enthusiasts and hobbyists due to their simplicity and educational value. Let’s break down the working of a typical single-transistor FM transmitter: Components: Transistor: The heart…
RGB Multicolor Lamp Sensor graph and LED controller: Temperature sensor and LED controller CD4094 control using Android Emulator HOW TO MAKE THIS SHIELD GET ALL THE PROJECTS FOR THIS SHIELD
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.
One of the main objectives of LDR Engineering projects is to make students capable of developing their own logic for making devices. Here is an example that tells how LDR Engineering helps in developing ideas.
It is an excellent DIY amplifier kit for electronics beginners with excellent sound quality. You don’t hear any noise until your ears are close to speakers. This amplifier uses a TDA7297 two-channel amplifier chip.
