RFID 卡和标签无处不在！我们在建筑物中使用它们进行访问控制。打印机和复印机可以使用它们来识别工作人员。牲畜标签和宠物识别标签都使用一种 RFID 形式。读取 RFID 设备的技术很便宜，大约 5 美元就可以买到阅读器，而 4 美元，Raspberry Pi Pico 可以从卡/标签 ...

在这个项目中，将向您展示如何设置和编程您自己的考勤系统，该系统使用RC522 RFID reader。 整个项目中，将展示如何组合使用RFID RC522阅读器和16×2 LCD的电路。 首先展示将这些电路连接到Raspberry Pi的GPIO引脚所需的所有步骤。还将向您展示如何测试每个电路，使其 ...

Developers, hobbyists and Raspberry Pi enthusiasts searching for a RFID or NFC reader powered by a Pico W sure to be interested in a new Kickstarter campaign launch for the aptly named ReadPi. Now in ...

Raspberry Pi enthusiasts searching for a project to keep them busy this weekend may be interested to know that the latest issue of the HackSpace magazine, created by the official Raspberry Pi team, ...

Costing a mere $4, the Raspberry Pi Pico was launched in 2021 using the in-house RP2040 chip. Unlike most other Raspberry Pi models, the Pi Pico isn't a microcomputer, as it is classified instead as a ...

Raspberry Pi’s first foray into the world of microcontrollers, the RP2040, was a very interesting chip. Its standout features were the programmable input/output units (PIOs) which enabled all sorts of ...

Single-board computers, or SBCs, are quite popular among students, enthusiasts, and developers who love to tinker with tech. One of the most common SBCs that most people use for this purpose is the ...

When someone gives you a crappy little toy keyboard, what can you do? Sadly plunk on the thing one note at a time? Well yes, but that’s not going to get you on Hackaday. Do what [Turi] did and give ...

For years, Raspberry Pi — the world’s most innovative tiny computer — has turned the tech world on its head. This plug-and-play computer isn’t much larger than a credit card and fits easily in your ...