Archives: Projects

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...

This is a simple power supply that provides an adjustable output voltage with an adjustable current limit. In such a small package, both these features make the power supply unique. The output voltage is adjustable range 1.2V to 6V DC and current limit range adjustable up to 1.5A,...

Network Attached Storage (NAS) are high-capacity storage devices that are connected to a local home or office network to provide everyone (with designated "clearance") on that network with access to the files on the drive without the need to plug into it directly. This facilitates things...

  This project consists of 20 non-contact infrared reflective sensors and each sensor provides an analog output. QRD114 sensor is the heart of the project which includes Infrared LED and photosensor.  The output of each sensor is high and goes low as objects or lines...

I'm quite passionate about air quality monitoring, so whenever I see an interesting air quality monitoring project that could help people stay healthy, while also serving as a good way to learn DIY electronics, I'm always eager to share.  Thus, for today's tutorial, I will chronicle the...

This project has been developed to charge SLA (Lead Acid Batteries) . It helps to charge 12V Lead-acid battery up to 12Ah in capacity. Specific current output is possible by altering the current sense resistor.  The BQ24450 chip contains all the necessary circuitry to optimally...

This USB to dual output step-up DC-DC converter has been designed to be used in industrial automation control equipment, sensors, isolated operational amplifiers and test & measurement equipment that require bipolar supply voltages. The module provides +/-15V or +/-12V DC load...

This module is a non-isolated 7A DC-DC converter. The module can convert any DC voltage between 7V to 50V to a 5V DC with load current up to 7A. The project has been designed around LM5116 Wide Range Synchronous Buck Controller IC. The design includes 6uH toroid inductor and two N...