Archives: Projects

Ground Isolation Audio Amplifier for Automotive Applications
This Ground Isolation Amplifier is developed for car and automotive applications. The board efficiently eliminates problems caused by wiring resistance and removes noise generated by other electrical devices used in automobile environment. In a car or automotive the audio system is...
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Node Red with MQTT on Raspberry Pi
This tutorial will guide you to integrate the MQTT on Raspberry Pi via the Node-Red platform. Node-RED is a flow-based development tool for the visual programming of hardware devices, and it is widely used for the Internet of Things. In addition, Node-RED provides a web...
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Sound to RC Servo Driver v2.0 – Arduino Compatible
The project presented here is made for applications such as Animatronics, Puppeteer, sound-responsive toys, and robotics. The Arduino compatible board consists of LM358 OPAMP, ATMEGA328 microcontroller, microphone, and other components. The project moves the RC servo once receives any...
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Continuous Conduction Mode Pre-Converters Module for Power Factor Controller
This compact module shown here is a Continuous Conduction Mode (CCM) Power Factor Correction Step up Pre-Converter. All-important inputs and output pins are broken out for use in your application, making this board hackable! Please refer to the datasheet of the NCP1654 chip for easy...
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Precision Thermocouple Amplifiers with Cold Junction Compensation – Temperature Range −25°C to +400°C
This Thermocouple Amplifier project provides a simple, low-cost solution for measuring thermocouple temperature. This board simplifies many of the difficulties of measuring thermocouples output. An integrated temperature sensor performs cold junction compensation. A fixed-gain...
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Universal Input AC/DC Switching Buck Regulator – 85V -265V AC Input – 5V/150mA DC Output
The project presented here is a universal input AC/DC switching buck regulator with ultra-low standby power that is capable of delivering up to 2.5W output power. The RAA223012 chip is the heart of the project which combines constant off-time control for heavy load and Pulse Frequency...
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Magnet Based Rotary/Linear Encoder Module with Quadrature Output
This sensor module is a simple solution to build a magnet-based rotary encoder. The project is based on the AS5304 chip with integrated Hall elements for measuring linear or rotary motion using multi-pole magnetic strips or rings. This allows the usage of the module in applications...
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Stepper Motor Based Rotary Encoder with Clock and Up/Down Direction Signal Output
This project enables the users to use a stepper motor as a rotary encoder for position control and Up/Down direction control. A bipolar stepper motor can be used as a rotary sensor as it generates two channel strings of pulses by turning the shaft. The circuit provides Step pulse and...
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