MicroSD card breakout board – buildcircuit.com
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.
Light activated police siren using 555 timer and light dependent resistor(LDR)
Here’s a simple light activated police siren using light dependent resistor and NE555 timer. Before you make this project, I would recommend you to make the following projects. a. Light sensor and dark sensor I strongly recommend you to make a dark sensor and light sensor using LDR and understand clearly how it works. b….
Mode of NE555- Astable
This circuit has been configured in Astable mode. The output pulses are determined by the values of resistors R1, R2 and the timing capacitor C1. The formula for the frequency of pulses is: f= 1.44/[(R1+2R2)*C1].
The high and low time of each pulse can also be calculated.
Arduino Project 51- RGB LED Control
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…
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.
DIY KIT 50- LM358 breathing LED circuit
This is a basic electronic kit based on LM358. The LM158 series consists of two independent, high gain, internally frequency compensated operational amplifiers which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain…
Arduino controlling the WTV020SD-16P Evaluation kit
This product is outdated. We are now selling DFplayer mini that easily plays mp3 files. It is far better than WTV020SD-16P. This article shows how you can test WTV020SD-16P module using Arduino and WTV020SD-16P evaluation DIY kit. If you have come to this page directly from a search engine, we recommend you to visit these...
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2 x 100W Class D Bluetooth Audio Amplifier Board – TSA7499B(Apt-X)
TSA7499B is designed for audio amplifier manufacturing factories or DIY electronics makers/users. Bluetooth/LINE IN select switch and audio input ports are designed with JST connectors. That allows users to install this amplifier board in a box and connect an external switch and RCA/3.5mm audio jack plug to make their own audio amplifier.
Adjustable constant current laser diode/LED driver
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.
How to assemble infrared transmitter for infrared receiver DIY kit
Click here to go to assembly page of infrared receiver. You will get these components with infrared transmitter kit: 1 x PCB 1 x Earphone Jack female 1 x Infrared LED 1 x 100uF electrolytic capacitor 1 x 4.7uF electrolytic capacitor 1 x S8050 transistor 1 x 5mm LED 1 x 0.01uF ceramic capacitor- Code:…
Scoreduino-B Arduino based controller for digital scoreboards
Watch the video of Scoreduino-B SCOREDUINO-B works with SCORE4 module of Scoreduino app. The ‘SCOREDUINO-B’ module works as a basic controller for 2.3", 3", 4", and 5"- 4 digits (2 on each side) scoreboards. It has 4 switches for up and down commands for each set of 2 displays. Other features: It has a Bluetooth module that...
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How to use C51 4 Bits Digital Electronic Clock DIY Kit
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…
Basic remote tester
Description: This circuit can be used for testing your TV, DVD, VCD, etc. remote control. This is the fundamental module for making infrared based object counter. This project has been derived from “Remote tester project” .
16X2 LCD SHIELD WITH LMD18201 MOTOR DRIVER
LCD is very important part of many DIY and industrial projects. The 16X2 LCD shield has been designed to develop LCD related projects using 28-40 Pin Pic development board or DSpic development board, along with LCD this shield includes LMD18201 DC Motor driver , 2 Trimmer potentiometer and 4 tact switches with jumpers. Jumpers can be…
5 beginners projects that work in the first attempt
Just started electronics ? And you don’t know any engineering behind your projects and you are afraid of failure ? Then, this article can help you get started in electronics. Usually, success in initial projects plays important role in electronics amateurs and engineering students’ career. Many students quit electronics because they fail in their first,…