This stepper pulse generator project is an easy solution for stepper controller drive. It’s a very important tool and can be used to drive stepper in standalone mode.  It generates square wave pulses in frequency range 0-50Khz. This project has multiple features which are a must for stepper controller. It has on board frequency generator…
TSA7500 2x100W + 220W 2.1 channels audio amplifier board comes with AudioB pro Bluetooth module. It has a perfect class-D architecture (based on TPA3221) and 2 channels have 100W power outputs and another one channel has 200W power output.
TSIR04B is similar to TSIR04. We have removed the OLED display and put the relay board in a plastic enclosure. This is a TSIR04B Wi-Fi version relay board with optically isolated inputs and temperature sensor port. You can easily control this relay board by your computer or smartphone using Wi-Fi. The communication method also can be changed easily. Replace…
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/
Here’s a very simple program to display some characters/strings on 16×2 LCD using Nokia N900 terminal and arduino.
This sound sensor with Relay driver shield for Arduino Nano can be used to develop sound-activated ON/OFF switch or other projects that require sound senor. LM358 op-amp is used as the amplifier, 1st op-amp amplifies the microphone signal, and 2nd op-amp works as a half-bridge rectifier that converts AC signal into a DC voltage. This DC voltage is connected…
CTR-30 flash Christmas tree kit consists of three circuit boards, allows 36 LED flash alternately, showing a Christmas tree in the space of a three-dimensional profile. It appears excellent at night.
This article is about assembly of counter module 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…
Get project details: http://www.buildcircuit.com/4-in-1-diy-kit-dark-sensor-latch-circuit-astable-multivibrator-and-clap-switch/
Remote operated musical bell can be made combining the following circuits.
a) Remote tester
b) Basic RC circuit
c) Simple Musical bell
When a remote is pressed, the circuit plays a music.
a) Remote tester
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…
In this tutorial, we will turn on and off the LEDs sequentially, such as Christmas tree lights.
VT-100 terminal emulator is a program for communicating with any serial device using a Bluetooth serial adapter. The RFCOMM/SPP protocol emulates serial communications over Bluetooth. You need a Bluetooth serial adapter.
In this tutorial we will learn how to change the color of an RGB LED connected to Arduino, alternating for two seconds the following colors: red, green, blue, and then orange, yellow, indigo and purple. It is similar to the previous  fade led effect experiment but it is not limited to only one LED but there…
