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All Journal Techno.Com: Jurnal Teknologi Informasi CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro
Paramytha IS, Nina
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Computer Science & IT Education Electrical & Electronics Engineering Engineering Other

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Voltage, Current, and Work Process Monitoring System on CNC Diode Lasers Zulhijjah, Intan Dwi; Fitriani, Endah; Paramytha IS, Nina; Dasmen, Rahmat Novrianda
Techno.Com Vol. 24 No. 4 (2025): November 2025
Publisher : LPPM Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62411/tc.v24i4.14961

Abstract

The advancement of CNC laser diode technology has transformed manufacturing by enabling high precision cutting and engraving of various materials, yet ensuring reliable operation requires accurate monitoring of electrical and mechanical parameters. This research focused on designing and implementing a real-time monitoring system that integrates the PZEM-004T sensor for electrical measurements and limit switches for safety boundaries in CNC laser diode machines. The system was developed using NodeMCU ESP8266 as the main controller, with results displayed on an LCD 16x2 and alarms generated through a buzzer and relay. Experimental evaluation demonstrated that the system effectively measured voltage, current, power, and energy, with the PZEM-004T showing an average error below 5% compared to reference instruments. The integration of limit switches functioned reliably, preventing mechanical failures and ensuring safe operation within defined limits. Monitoring data supported energy efficiency by identifying power usage patterns and reducing operational risks. Engraving tests confirmed stable performance, with improved detail observed during longer process durations. Overall, the implemented system provides a practical and reliable solution for operational monitoring and mechanical protection, making it particularly suitable for small-scale CNC laser diode applications in industrial, educational, and creative fields.
Car Parking Monitoring System Based on Location Plate Detection Using Web Camera Saputra, Eko; Paramytha IS, Nina; Fitriani, Endah; Ariyadi, Tamsir; Hanif Ath Tarech, Affan
Circuit: Jurnal Ilmiah Pendidikan Teknik Elektro Vol. 10 No. 1 (2026)
Publisher : PTE FTK UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/mx8m2e49

Abstract

This research aims to design a car parking monitoring system based on license plate detection using a webcam to improve efficiency and accuracy in parking area management. The scope of the research includes hardware design using an ESP32 microcontroller, ultrasonic sensors, proximity sensors, a 16x2 LCD, servo motors, and a thermal printer. The research methodology involves literature review, as well as laboratory testing and data validation. The system is evaluated based on its ability to accurately detect vehicle license plates, monitor parking space availability in real-time, and automatically record vehicle entry and exit data. Experimental results show that the system correctly detects, matches it with a database, and controls access to the parking area. All components operate within the specified voltage range, with measurement errors remaining below 5%. The system successfully records vehicle entry and exit times, and the website interface updates parking space availability in real-time based on sensor readings. In conclusion, the proposed system is effective in helping operators monitor slot availability, minimize vehicle placement errors, and simplify the parking process with automation
Co-Authors Dasmen, Rahmat Novrianda Eko Saputra Fitriani, Endah Hanif Ath Tarech, Affan Tamsir Ariyadi Zulhijjah, Intan Dwi