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RFID Attendance Tracker - Employee Clocking System Arduino Project

Circuit Cellar

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August 2024

Attendance trackers carry prohibitively high costs for small companies. Andrei shows us how to build a cost-effective, customizable employee clocking system with RFID technology. An Arduino board with Integration Platform as a Service allows attendance tracking with RFID cards to blend seamlessly with popular payroll systems.

- Andrei Florian

RFID Attendance Tracker - Employee Clocking System Arduino Project

Employee clocking systems have come a long way since their inception in the late 19th century when the first mechanical time clock was invented by Willard Le Grand Bundy, a jeweller in New York. Initially designed to track workers' hours with greater accuracy, these systems have evolved significantly, embodying the technological advancements of each era.

Today, they serve a pivotal role in managing workforce efficiency and facilitating smooth payroll processing.

The purpose of clocking systems is multifaceted. Primarily, they provide a reliable method for recording employees' working hours, thereby streamlining payroll calculations and promoting fairness in the workplace. Today, these systems leverage different technologies to suit various organizational needs. Electronic timecard systems, biometric scanners, web-based applications, and sophisticated integration with HR management tools are just some of the innovations introducing a new level of precision and convenience, allowing employees to clock in and out with a simple fingerprint scan or a tap of an RFID card. This ease of use, coupled with real-time data analysis, enables organizations to optimise their workforce allocation, address inefficiencies, and even predict future staffing needs.

imageThe impact of these systems extends beyond mere administrative benefits. They play a crucial role in enhancing overall productivity and job satisfaction. By ensuring accurate compensation for time worked, fostering transparency in timekeeping practices, and reducing administrative burdens, clocking systems contribute to a more engaged and motivated workforce.

Circuit Cellar'den DAHA FAZLA HİKAYE

Circuit Cellar

Circuit Cellar

A GPS-Disciplined Frequency Counter using the PSoC 5LP

In this month's column, Brian tasks one of his mixed-signal favorite MCUs, the Infineon PSoC 5LP, to build a frequency/ period counter using a GPS satellite module to discipline the project's time base.

time to read

16 mins

November 2025

Circuit Cellar

Designing Analog Electronics

Part 1: Error and Uncertainty

time to read

23 mins

November 2025

Circuit Cellar

Samtec Launches 800-Position AcceleRate HP High-Performance Array Connectors

Samtec, Inc., a global leader in high-performance interconnect solutions and a service leader in the industry, announces the expansion of its AcceleRate HP product line with the release of 800-position APM6 and APF6 high-performance array connectors available in a low-profile 5mm stack height.

time to read

1 min

November 2025

Circuit Cellar

Circuit Cellar

CIA for SBCs (and More)

Securing Embedded Systems from Evolving Threats

time to read

14 mins

November 2025

Circuit Cellar

Circuit Cellar

The Future of Embedded Systems and AI: AI in Embedded Systems

Cybersecurity Challenges and Opportunities in a Smarter World

time to read

4 mins

November 2025

Circuit Cellar

Circuit Cellar

An ESP32 Dashboard

Monitoring How a Popular Microcontroller Uses Resources

time to read

11 mins

November 2025

Circuit Cellar

Circuit Cellar

Vishay Intertechnology Power Metal Strip Resistor Delivers Power to 5 W in Compact 1206 Case Size

Vishay Intertechnology, Inc. introduced a new surfacemount Power Metal Strip current sense resistor that combines a high power rating up to 5W, TCR down to ± 75ppm/°C, and extremely low resistance values down to 0.3mΩ in the compact 1206 case size.

time to read

2 mins

November 2025

Circuit Cellar

Circuit Cellar

ROHM Develops New Smart Switches Optimized for Zonal Controllers

ROHM Semiconductor announced the release of six new high-side smart switches (IPDs: Intelligent Power Devices) featuring highly accurate current sensing and low ON resistances ranging from 9mΩ to 180mΩ.

time to read

1 min

November 2025

Circuit Cellar

Circuit Cellar

Bourns Expands Semi-Shielded Power Inductor Portfolio with New Series Featuring Higher Maximum Inductance Values

Bourns, Inc., a leading manufacturer and supplier of electronic components for power, protection, and sensing solutions, announced the expansion of its semi-shielded power inductors.

time to read

1 min

November 2025

Circuit Cellar

Circuit Cellar

STMicroelectronics' New Automotive Linear Voltage Regulator Preserves Battery Energy in Challenging Conditions

The TL99VR03 300mA low-dropout (LDO) regulator provides resilient and efficient power, with a wide input-voltage range and very low quiescent current consumption, only 3.5µA at no load. The IC has an enable pin for turning the regulator off, which reduces the idle current to 800nA, and integrates soft-start circuitry to limit current during power-up and fault recovery.

time to read

1 min

November 2025

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