Acceptable indoor air quality is a concern for the comfort and health of humans, in which the 40–70% of relative humidity (RH) is comfortable for the human body and the existence of volatile organic ...

A battery-powered multisensor acquisition system with five dedicated channels [electrocardiograph (50 μW), bioimpedance (46 μW), galvanic skin response (15 μW), and 2× photoplethysmogram (134 μW)] is ...

We have developed a novel fabrication method for flexible gas sensors for toxic gases based on sequential wet chemical reaction. In specific, zinc oxide (ZnO) nanowires were locally synthesized and ...

The SGP30 is a digital multi-pixel gas sensor designed foreasy integration into air purifier, demand-controlledventilation, and IoT applications. Sensirion’s CMOSens®technology offers a complete ...

This allows the implementation of any logic to handle the actual servo control. For example, you can make use of the standard Servo library for simple setups or add logic to control servos via PWM ...

Off-ramps along Interstate 40 will be closed around the clock to undergo testing of wrong-way detection systems.According to a release, only emergency responder ...

Circuit and working. Fig. 2 shows the circuit diagram of the predictive failure control system for stepper motors. It is built around an Arduino Uno board (MOD1), an encoder (MOD2), a temperature ...

The frequency of the mains voltage serves as a reliable indicator of the electrical grid’s load. The grid frequency meter outlined here monitors both this critical parameter and the mains voltage of ...

The project includes 3D-printed parts, wooden supports, and a repurposed mini conveyor belt.The working combines stepper motors, IR sensors, and a 16x2 LCD.A NEMA17 stepper motor is used to rotate the ...