This library only support TTL RS232 serial port. VCC support 3.3 ~ 5V TX, RX connect to Arduino or Seeeduino T1, T2 is the Signal port for RFID antenna W0, W1 is for wiegand protocol, but this library ...

Abstract: In a shopping mart, imagine ten people waiting in line. If the first five people have many items in their carts, the last person with only one or two items may wait a long time to pay. To ...

First we want to generate the 134.2kHz carrier frequency for the reader. We can do that by using any of the Arduino's PWM-capable timers to generate a square wave. Arduino timers can only achieve a ...

Modern conveniences such as self-checkout and contactless payments are often taken for granted. Because of this, it’s natural to overlook the critical technology that makes such everyday efficiencies ...

Cancer care continues to advance at a remarkable pace, with new drug development, increasingly complex scheduling, tighter margins for error, and growing pressure to deliver personalized, safe, and ...

Regular wallets hold your cash and cards in one place so nothing slips out. However, for a while now, there has been some buzz about RFID-blocking wallets everywhere. They look like any other wallet, ...

Abstract: Radio-frequency identification (RFID) readers are the main bottleneck when building an RFID system. The cost of the readers can be high, and these devices can be bulky. Moreover, when these ...

A rising figure of Generation Z, Emma Ellingsen has established herself as a key figure in the world of makeup on social media. Born in 2001 in Norway, this transgender influencer and model is now ...

A new AI trend has taken the internet by storm. You can now use Google's Gemini 2.5 Flash 'Nano Banana' engine to create 3D figurines from an image. Here's the step ...