Unlock Your PC With an Arduino Using a Phone, RFID Card or RFID Tag
https://makerv2.webteractive.co/arduino/projects/unlock-your-pc-by-arduino-using-phone-rfid-card-or-rfid-tag-atmega32u4-rfid-reader
How to make simple USB device which allows you to unlock your computer without keyboard by RFID card/chip.
TurboTrack: MIT’s RFID-based Answer to Machine Vision Robotics
https://makerv2.webteractive.co/blog/turbotrack-mits-rfid-based-answer-to-machine-vision-robotics
While machine vision is often the ‘done deal’ for informing robotic motor functions, sometimes it’s the simpler solutions that prove the most robust. Here’s a look at TurboTrack: Massachusetts Institute of Technology’s radiofrequency identification tag-based technology, whose signal-reading approach has proved foolproof in many aspects where machine vision robot guidance falls down.
125KHz RFID emulator
https://makerv2.webteractive.co/forums/threads/125khz-rfid-emulator.233064/
Thread '125KHz RFID emulator'
Simple circuit to find lost passport
https://makerv2.webteractive.co/forums/threads/simple-circuit-to-find-lost-passport.230129/
Thread 'Simple circuit to find lost passport'
Want to build your own alarm gizmo?
https://makerv2.webteractive.co/forums/threads/want-to-build-your-own-alarm-gizmo.220156/
Thread 'Want to build your own alarm gizmo?'
Troubled mind, energy company wants to implement a spy chip in my house.
https://makerv2.webteractive.co/forums/threads/troubled-mind-energy-company-wants-to-implement-a-spy-chip-in-my-house.151814/
Thread 'Troubled mind, energy company wants to implement a spy chip in my house.'