[Ralph] wasn’t satisfied with the required 5 control pins to drive his nrf24l01+ transceiver module, so he used this circuit needing just 3 pin using an ATtiny85. One of the key components was to ...

We all know we should have strong, unique passwords for everything, but what about those simple 4-digit PINs? It turns out, they might be even more vulnerable than you think. If a thief gets their ...

Locking your phone keeps out snoops, but it's also your first line of defense against hackers and cybercriminals out for your data and anything else they can steal. One of their biggest targets? Your ...

Digital Insecurity: Originally introduced as an efficient way to authenticate bank customers at ATMs, the venerable PIN passcode is now ubiquitous among smartphone users as well. Though it serves as ...

Inputting multiple bits of information using a single entry pin of a microcontroller without the complexity of UARTs can prove useful. Such a scheme could allow scanning of a keyboard, mode switches, ...

Your four-digit PIN is your secret shield guarding your phone, bank account, and other services - but millions of people are ...

Working on a breadboard, one can get used to the benefits of being able to readily plug and unplug jumper wires to reconfigure a project. One could only dream of doing so with PCBs, right? Wrong!