RFID Attendance Tracker - Employee Clocking System Arduino Project
Circuit Cellar|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.

The 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.

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Bringing Cost-Effective, On-Device AI to Home Appliances - Sparse Weights and Interactions Negate GPUs and Cloud Computing
Circuit Cellar

Bringing Cost-Effective, On-Device AI to Home Appliances - Sparse Weights and Interactions Negate GPUs and Cloud Computing

GPU silicon and cloud computing infrastructure are too costly for mass markets devices like refrigerators and washers. By deploying compute resources only to the necessary parts of AI inference, Sparse AI allows product designers to practically incorporate new AI features like natural voice interfaces into their consumer offerings without breaking the bank or electric bill surprises.

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5 mins  |
September 2024
Thin Film Transistor LED Displays - Visual I/O
Circuit Cellar

Thin Film Transistor LED Displays - Visual I/O

To add a resistive touchscreen on top of a TFT display, Jeff explores the technology offerings and libraries needed to accomplish his task. Calibrating the touchscreen's computed coordinates with the actual pixel coordinates of the display proved difficult with a modular framework but separating functions allows easy expansion.

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9 mins  |
September 2024
Mobile APP Development with React Native
Circuit Cellar

Mobile APP Development with React Native

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9 mins  |
September 2024
Power Analysis Over JTAG Ports: Hidden Debug Dangers - Block Side-Channel Analysis Attacks
Circuit Cellar

Power Analysis Over JTAG Ports: Hidden Debug Dangers - Block Side-Channel Analysis Attacks

Small changes in the phase of clock signals can encode power leakages. An attacker can use standard interfaces such as the JTAG port to drive clocks across targets, using them as measurement techniques for sidechannel analysis attacks despite limited physical access. This article demonstrates how you can test devices for vulnerability and how to modify devices to prevent attacks.

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7 mins  |
September 2024
The Blues Wireless Notecard-LoRa
Circuit Cellar

The Blues Wireless Notecard-LoRa

After having built a number of Wi-Fi IoT gadgets for the home, Brian became curious to see how LoRaWAN-based IoT devices would work. He decided to investigate the Notecard LoRa IoT modules made by Blues Wireless.

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10+ mins  |
September 2024
IoT Protection with MCU Security - Ward Off Attacks with Trust Zones, Encryption, Secure Keys and Tamper Detection
Circuit Cellar

IoT Protection with MCU Security - Ward Off Attacks with Trust Zones, Encryption, Secure Keys and Tamper Detection

Security breaches jumped 107 percent as malevolent forces increasingly focused on IoT devices for side attacks, IP and data theft. Semiconductor vendors supplying on-chip cryptography, memory protection, unclonable technology, random number generation and other measures hope to shut the door on attackers.

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2 mins  |
September 2024
Fill AI with Computer Vision - On the Leading Edge of Adoption in Industrial IoT
Circuit Cellar

Fill AI with Computer Vision - On the Leading Edge of Adoption in Industrial IoT

In just about any factory, production lines hum along like a symphonic orchestra. However, makers of artificial intelligence hardware are pushing transformative technology with mind-boggling productivity gains to unlock unrealized potential. Just how fast will AI seamlessly integrate into the means of production?

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10+ mins  |
September 2024
No Blues with Bluetooth! GATT Explained - Part 5 - Understanding Higher Protocol Layers Provides Interoperability Help
Circuit Cellar

No Blues with Bluetooth! GATT Explained - Part 5 - Understanding Higher Protocol Layers Provides Interoperability Help

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10+ mins  |
September 2024
Retro-style Miniature Sports Scoreboard - RGB LED Matrix and Raspberry Pi Provide In-Game Updates
Circuit Cellar

Retro-style Miniature Sports Scoreboard - RGB LED Matrix and Raspberry Pi Provide In-Game Updates

This Cornell University graduate describes how he built a miniature, retrostyle scoreboard that pulls and displays live college and professional sports scores from the ESPN API-bringing the excitement of being at a sporting event to your living room. Pre-game information, in-game scores, and post-game results are displayed on a built-in PiTFT touchscreen.

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10 mins  |
September 2024
Exploring Infrasound - Tornado Early Warning Detection Project Using Raspberry Pi Pico and a Python Supervisory Program
Circuit Cellar

Exploring Infrasound - Tornado Early Warning Detection Project Using Raspberry Pi Pico and a Python Supervisory Program

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9 mins  |
September 2024