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…
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 tutorial is for novices who have never made any Android application or worked with Amarino. If you have never done any experiment with Android and Arduino, please start with this experiment. You don’t need to have previous knowledge of Android for doing this experiment. Simply download any Android serial emulator and upload the Arduino code…
This is yet another dark sensor DIY kit. It is slightly different from other dark sensor kits. It has a buzzer and a photodiode that makes it different from other kits. Along with the LED, the kit turns on the buzzer whenever it senses darkness. See all the images below to get the idea for…
TSA9840 2x20W audio amplifier board comes with  Audio B plus Bluetooth module. It has a perfect class-D architecture (based on MAX98400A) and each channel has 20W power output. Both channels are capable of giving nominal power output simultaneously and continuously.
TSA8635 is a compact size and easy to use Bluetooth audio receiver. This Bluetooth music receiver connects to the Line-In or Aux input on your home audio system. You can also stream audio from your Bluetooth enabled cell phone or mp3 player to your home audio system. Note: We can provide OEM/ODM service for…
This is a very interesting project for beginners. We had made similar project several years ago and published on BuildCircuit.COM. Check out this page. In this project, music from an audio source can be transmitted wirelessly via infrared medium. There are two kits included in this package. One is transmitter and the other is a receiver….
The DRV101 is a low-side power switch employing a pulse-width modulated (PWM) output. Its rugged design is optimized for driving electromechanical devices such as valves, solenoids, relays, actuators, and positioners. The DRV101 module is also ideal for driving thermal devices such as heaters and lamps. PWM operation conserves power and reduces heat rise, resulting in…
Tutorial for Amarino Beginners- Display your SMS on 16×2 LCD. This tutorial shows you how to display SMS on 16×2 LCD. This tutorial is based on Amarino. It utilizes Receive SMS plugin of Amarino. This plugin sends the first 30 characters of a received SMS to Arduino. The message is sent as a string. The…
We have been using different online Gerber viewers for checking our Gerber files before sending the PCB designs for manufacturing. We have now started using EasyEDA’s Gerber viewer because it helps us to visualize the PCB that would appear after it is manufactured. The application is pretty straightforward and we can check different files to see the changes on…
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.
The range of a Wi-Fi signal can be influenced by several factors, which can impact its coverage and strength. Understanding these factors can help you optimize your Wi-Fi network for better performance. Here are the key factors that affect Wi-Fi transmission range: Frequency Band: Wi-Fi operates in different frequency bands, such as 2.4 GHz and…
The USBASP programmer is an important tool/accessory for embedded systems engineers/ firmware developers. It is a USB ICSP (In-Circuit Serial Programmer) that allows developers to easily upload firmware/bootloaders on AVR microcontrollers. Unlike what you find to serial programmers like the USB-TTL converters, it does not use a dedicated chip as it runs on an atmega88 (or atmega8), and uses…
The DRV101 is a low-side power switch employing a pulse-width modulated (PWM) output. Its rugged design is optimized for driving electromechanical devices such as valves, solenoids, relays, actuators, and positioners. The DRV101 module is also ideal for driving thermal devices such as heaters and lamps. PWM operation conserves power and reduces heat rise, resulting in…
TSIR04 is a USB relay with optically isolated inputs and OLED display and temperature sensor port. It allows computer control switching of external devices by using the USB port of your computer. The communication medium also can be changed easily. Replace the USBBee module with a WiFiBee, it becomes a WIFI relay. It will be a Bluetooth relay when…
Here’s a simple motion sensor. Sketch has been taken from Arduino site. The sensor’s output pin goes to HIGH if motion is present.  However, even if motion is present it goes to LOW from time to time, which might give the impression no motion is present. This program deals with this issue by ignoring LOW-phases shorter…
This is a DC-DC step-up converter based on LM2585-ADJ regulator manufactured by Texas Instruments. This IC was chosen for its simplicity of use, requiring minimal external components and for its ability to control the output voltage by defining the feedback resistors (R1,R2). NPN switching/power transistor is integrated inside the regulator and is able to withstand…
This is just a simple Arduino project comprising Arduino, LM35, and I2C LCD. It displays the room temperature on the I2C LCD and the serial monitor. The project is suitable for beginners and can be used for school projects. In the past we have done several projects using LCD and LM35, please check the projects…
This Arduino shield helps to drive various loads like a solenoid, valve, motor, inductive actuator, heater, and bulb. A wide supply range 8V-60V and a load current of 2.7A allows it to be used with a variety of actuators. The board can be used as a stand-alone driver or it can be controlled by Arduino…
