Design and Implementation of MOAT (Moth Attractor Technology): Glue-Tube-Light System with RTC (Real Time Clock) Module

<p>In this work, we designed and built a wearable device with battery-saving and alcohol-sensing functions. The motivation for this device was to deliver a proof-of-concept wearable and functional device which alerts the user of possible alcohol breath level above a threshold limit and can be worn for an extended time due to battery saving features. It was built using a combination of Arduino electronics and sensors, and encased in 3D-printed ABS bracelet. A 4-digit 7-segment LED display on board is used to display time which is tracked using a real-time clock module. A 3-axis accelerometer determines the orientation of the device and activates the display only when it is held in a specific orientation by the user. An example is when two axes are normal to the gravitational pull while a single axis is in line with gravity to simulate users raising their arm parallel to the ground. A slight tolerance in the setting ensures that the threshold for activation is not overly strict. This will ensure that the LED display is activated over a narrow range of orientations. The alcohol sensor is sensitive to alcohol content in the air. The threshold for detection can be changed and calibrated to the user specific needs. The alcohol sensor is slightly sensitive to humidity and very sensitive to alcohol. It has been tested with ethanol, wine and beer with 95%, 12.5% and 4.55% alcohol content, respectively. Because the alcohol sensor works by using a resistor that continuously pulls current and detects changes in resistivity due to adsorption of alcohol molecules, it consumes a lot of power when turned on continuously. In order to conserve power, the sensor can be activated only when the device is oriented in a specific position or when the user pushes a button. An Arduino Nano board is used to reduce the overall size of the device. It is powered using an external 5V battery via a mini-USB connector. In order to reduce the number of IO pins used, the RTC, LED and accelerometer were configured to use I2C interface connections. A default SCL clock speed of 100 kHz is used and the component IOs are connected to a common SDA line which terminates at one analog pin. In normal operation, the RTC is configured to read time continuously at one second interval. It is preprogramed with the correct date and time prior to operation of the device.</p>

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DEVELOPING AN AUTOMATED CONTROLLER FOR A SOLAR HEATING SYSTEM

Bulletin of the South Ural State University series Power Engineering ◽

10.14529/power210310 ◽

2021 ◽

Vol 21 (3) ◽

pp. 83-89

Author(s):

E. Amirgaliyev ◽

◽

M. Kunelbayev ◽

T. Sundetov

Keyword(s):

Data Processing ◽

Real Time ◽

Temperature Sensor ◽

Control Algorithm ◽

Heating System ◽

Temperature Sensors ◽

Solar Heating ◽

Real Time Clock ◽

Control And Monitoring System ◽

Clock Module

The paper discusses the development of an automated controller for a Mojo v3-based solar heating system. The developed system operates using 6 sensors (DS18B20 Dallas) expanding the platform's applicability. An in-tegrated system allows controlling temperature and heat using Dallas sensors. The control and monitoring system is implemented in the VHDL and VERILOG languages. A control algorithm has been developed that activates libraries and constants, a real-time clock module, temperature sensors, and server connection. When the server connection is established, the temperature sensor readings are recorded and saved in the XML file in the Ethernet module. XML facilitates data processing by automatically or manually interpreting spreadsheet programs.

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Alat Monitoring Radiasi Matahari di Pulau Batam

Journal of Applied Electrical Engineering ◽

10.30871/jaee.v4i1.1929 ◽

2020 ◽

Vol 4 (1) ◽

pp. 7-9

Author(s):

Muhammad Prihadi Eko Wahyudi ◽

Faiz Al Qodri ◽

Maryani Septiana ◽

Qoriatul Fitriyah

Keyword(s):

Real Time ◽

Lookup Table ◽

Real Time Clock ◽

Pv Cell ◽

Clock Module

Photovoltaics (PV) cell adalah sebuah elemen yang dapat melakukan konversi energi dari radiasi akibat panas matahari menjadi energi listrik dengan prinsip semikonduktor. Tegangan dan arus listrik yang dihasilkan sel surya dipengaruhi oleh tingkat intensitas radiasi cahaya matahari dan temperatur udara lingkungan. Alat yang dibuat dalam penelitian ini didesain dengan menggunakan metode lookup table yang dibuat dengan memakai 2 motor sebagai penggerak sumbu x dan y dalam menentukan koordinat dari posisi matahari yang digunakan sebagai penentu intensitas radiasi matahari di Pulau Batam. Perangkat ini juga terintegrasi dengan waktu menggunakan real time clock module.

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