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 ...

The Raspberry Pi is one of the smallest computers anyone can buy. It also happens to be one of the cheapest, with flagship models priced at under $100. This is thanks to how every Pi unit consists of ...

Serial entrepreneur Patrick Thomas Mitchell has once again taken to Kickstarter to launch his 33rd campaign allowing electronic enthusiasts to back a small yet fast RFID reader. The card reader can be ...