Rolling back those sands of time.

I’ve been testing out the RYB2340 Bluetooth module, and it’s honestly one of the simplest ways I’ve found to add wireless control to Arduino or ESP8266 projects. In this video, I’ll walk you through ...

It’s always nice to simulate a project before soldering a board together. Tools like QUCS run locally and work quite well for ...

Explore the advanced tracking and espionage technology embedded in modern credit cards. Learn how this hidden tech works and what it means for your data.

How many times do you have to forget your keys before you start hacking on the problem? For [Binh], the answer was 5 in the last month, and his hack was to make a gesture-based door unlocker. Which ...

#define SS_PIN 10 // Definindo o pino para conexão do módulo RFID #define RST_PIN 9 // Definindo o pino para conexão do módulo RFID MFRC522 mfrc522(SS_PIN, RST_PIN); // Informa no programa quais os ...

Abstract: Due to the characteristics of P2P network, the correctness of P2P RFID code resolution service is not guaranteed. In this paper, a novel secure communication mechanism for the P2P RFID code ...

Abstract: This paper presents the design and implementation of a comprehensive smart shopping cart system that integrates Radio-Frequency Identification (RFID) and Quick Response (QR) code ...

//Objective: To get to know the useful functionalities of OLED display. //To implement a simple counter on the oled. #define SCREEN_WIDTH 128 //OLED display width, in pixels. #define SCREEN_HEIGHT 64 ...

Spools should really be standardized across 3D printing, but that’s never going to happen. After writing yesterday’s story about digital spool scales, I thought about the problem of using them: you ...