Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...

An easily implementable signal conditioning circuit for resistive humidity and temperature sensors is presented. It is based on a relaxation oscillator in which both the frequency and the duty-cycle ...

This micro project uses a Total Dissolved Solids (TDS) sensor interfaced with an Arduino Uno and a 16x2 LCD to display the TDS level of water. The system is intended for water filtration systems, home ...

The Arduino code is located in the arduino-code folder. The code still lacks the ability to measure pressure and it is a mess (I merged several online projects). It measures the pressure in mV. As ...

This manuscript reports the description and functional tests of a novel wavelength-encoded fiber optic sensors (FOS) read-out circuit. The proposed design can transduce the optical signal reflected by ...

LiteWing is an open-source drone powered by the ESP32 microcontroller. This Wiki page provides an overview of LiteWing, including how to fly it, hardware design details, and access to design files and ...