In everyday life, particularly in hospitals, people typically use cloth or tissue to dry our hands. It seems less practical, effective and hygienic. In addition, some restaurants still use cloth or tissue as well. To overcome this problem, several hospitals and restaurants have provided hand dryers. It can dry hands but cannot eliminate germs or bacteria. It is necessary to create a hand dryer equipped with a sterilizer. This work, therefore, created a hand dryer that can simultaneously dry and sterilize hands that worked automatically using the ATMega8 microcontroller. The tool was designed by using an infrared sensor to detect hands, and an ATMEGA8 microcontroller to read and process the sensors to activate UV and heating. The results found that the tool equipped with UV and heating can dry hands while eliminating bacteria and germs.

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Prototype of Hand Dryer with Ultraviolet Light Using ATMega8

An incubator room is conditioned to keep the temperature warm so the baby feels comfortable. A temperature monitor system for the incubator room placed separately from where the officer works is a hassle. It wastes time. Temperature detector design for infant incubator which has constant temperature is necessary. An LM35 sensor as a temperature detector was used in the design. The sensor was installed in a 100 x 80 cm room. The detected temperature was displayed on the LCD and computer in the staff room. Temperature (°C) is converted by an Arduino Uno microcontroller into an ADC (Analog Digital to Converter) value. Several LM35 sensors were mounted in rooms to detect the temperature. The LM 35 sensor was used by considering that it can be calibrated directly in the Celsius scale, a linear scale factor of 10mV/°C and has a temperature range between -55 ° C and 150 ° C.

/pdf/temperature-monitoring-system-for-baby-incubator-based-on-j5t3bwd4fm.pdf

Temperature Monitoring System for Baby Incubator Based on Visual Basic

The escalating cases of security threats on the global scene, especially in the cyberspace, demands urgent need to deploy sophisticated measures to mitigate these calamitous threats. To this end, various lock mechanisms have been developed and deployed to prevent access to control systems from potential intruders. This paper provides a solution to this pervasive problem, addressing concerns on the physical and virtual components of an access control system. A locally generated One-Time-Passkeys (OTPs) was created, leveraging ambient noise as entropy input. The system was deployed on an Arduino microcontroller embedded in a safe-cabinet secured with a 12V solenoid lock. The design was implemented and tested against standard metrics. Results achieved include algorithmic optimizations of existing local OTP protocol implementations, and the realization of a safe lock module, which interfaces with a mobile application developed on Android over a secured Bluetooth connection.

/pdf/development-of-a-multifactor-security-protocol-system-using-18ua8skc95.pdf

Development of a Multifactor-Security-Protocol System Using Ambient Noise Synthesis

Automatic Broadcast Transmission Control With 8 Relay Channels Based On Arduino

In the radial displacement measurement of a small-sized cylindrical target, coupling interference between eddy current sensors reduces the accuracy of the measurement. In this study, finite element method (FEM) simulation based on ANSYS Maxwell was adopted to investigate the relationships between the coupling coefficient of the sensors and different parameters including the lift-off, cylinder diameter, axis angle, material, and excitation frequency. The experimental results were consistent with the simulation results. The coupling interference between the sensors increased with the decrease in the lift-off and cylinder diameter. The coupling effect decreased significantly when the probe axis angle increased to 120°, and the decrease in the sensor sensitivity was acceptable. A polynomial fitting function fitted the output signal well. A compensation method was given based on the compensation necessity evaluation. The results showed that the error of the rotor motion track was significantly decreased after compensation.

/pdf/coupling-interference-between-eddy-current-sensors-for-the-1pv0f50w.pdf

Coupling Interference between Eddy Current Sensors for the Radial Displacement Measurement of a Cylindrical Target

The paper describes the design and implementation of the CAN based digital dashboard unit used in the design study SCE of the electric car. The system consists of a CAN communication interface unit based on a PIC microcontroller and graphic programmable LCD displays. The work is not only described in terms of technical solution, but also in terms of design.

Design of Digital CAN Based Car Dashboard Unit

The article describes design and realization of security system based on single-chip microcontrollers. System includes sensor modules for unauthorized entrance detection based on magnetic contact, measuring carbon monoxide level, movement detection and measuring temperature and humidity. System also includes control unit, control panel and development board Arduino with ethernet interface connected for web server implementation.

Security system based on microcontrollers

The paper describes the design and implementation of the electronic steering wheel control system with force feedback. The main purpose of this project is the development of a steering wheel unit for the implementation of “steer-by-wire” technology or as a basis for the autonomous vehicles control. The work includes construction of a steering wheel unit with use of DC motor and the design of an electronics for its control.

Electronic Steering With Force Feedback

The paper is focused on shaft displacement measurement with the use of capacitive sensors made by printed circuit technology. A basis is a measuring unit with a capacitive-digital converter (CDC), which can provide the measured data to the main microcontroller for their processing and storage. The main goal was to design a low-cost solution for measuring the position of the shaft, which would be able to compete with professional and expensive units. Therefore, the result of this work is also a comparison of measured data with data from the professional unit and sensors from the Micro-Epsilon company. This unit also served as a calibration device. Thanks to this device, it was possible to convert the resulting signal representing capacity to the displacement in micrometres.

Shaft Displacement Measurement Using Capacitive Sensors

The paper deals with the design and use of smart unit for real-time road condition monitoring. The basis is three-axis accelerometer, gyroscope and magnetometer based on MEMS technology, which provides its data to the main microcontroller. As a communication interface for data providing, the high-speed CAN bus was used. The reason was an easier way to implement in the car and achieve a higher frequency of data provision. The result of this work is the determination of the critical sections of the measured route.

Tomas Pawlenka

Papers

Design of Digital CAN Based Car Dashboard Unit

Security system based on microcontrollers

Electronic Steering With Force Feedback

Shaft Displacement Measurement Using Capacitive Sensors

Road Condition Monitoring with Use of MEMS Based Unit