Archives: Projects

This project provides 12V output from any USB power source, like PC USB port, USB adapter or power banks. LM2577ADJ boost converter IC is the heart of the project. The IC can handle load up to 800mA, it’s advisable to use only 200mA load on output to be on the safe side. The LM2577...

This is an industrial grade diffuse photoelectric sensor module which is based on Optical IC S8119 from HAMAMATSU. A diffuse reflection sensor is used for the direct detection of an object. The diffuse reflective sensor project consists of an Infra-RED LED and receiver. The IC also...

Introduction Hi guys, Welcome to this tutorial. Today we will build a breathalyzer using the MQ3 gas sensor, an OLED display and Arduino. A breathalyzer is a generalized trademarked name for  devices used for determining blood alcohol content from a breath sample. This means the...

General purpose differential amplifier project has been designed for various pressure sensor amplifier applications. Circuit provided with multiple resistors, capacitors, dual sensor options and 4 pin Header connector to interface other external sensors.  Schematic is an example from...

Contact-less controlled automatic wardrobe light turns on the LED when you open the wardrobe door. Τhe project is based on Hall effect IC including LED driver and tiny magnet. Board doesn’t require any mechanical switch. When magnet is close to the board, LED is off, when you open...

This project is the ideal solution for high output, high performance high fidelity stereo head phone amplifier. The project consists of Op-Amp LME49720 and LME49600 as output driver. The LME49600 is able to drive 32Ω headphones to a dissipation of greater than 500mW at 0.00003% THD+N...

Arduino Nano to PIC40/28 PIN development shield is an extension for Arduino Nano. This project is useful to create many projects using PIC40/28PIN shield published on electronics-lab.com, refer to schematic and connection diagram to use this shield. Two on board regulators are...

The Universal Op-Amp Development board is a general purpose blank circuit board that simplify prototyping circuits for a variety of Op-Amp circuits. The evaluation module board design allows many different circuits to be constructed easily and quickly. This board supports single...