This article explains what RFID is and how it works. It shows the differences between tags, cards, and stickers, demonstrates how to read RFID tags with Arduino and MicroPython, and presents a practical RFID-based office time logging project.

A Raspberry Pi I2C tutorial using the Qwiic ecosystem. It shows required hardware, how to enable I2C, connect a BME680 sensor and SSD1306 OLED, install tools/libraries, scan devices with i2cdetect, and run a Python example that reads temperature via pigpio and displays it on the OLED.