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Start Motorbike with NFC Hand Implant

Start Motorbike with NFC Hand Implant © CC BY-NC

I implemented an Arduino NFC reader inside my motorbike so I'm able to start and stop it just with the implant in my hand.

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Components and supplies

Ph a000053 iso (1) pnkpri8a6q
Arduino Micro
×1
RFID reader (generic)
×1
Relay Module (Generic)
×1
Ge10tdfn 40
DC-DC (Step Down) Regulator, Adjustable
×1

Necessary tools and machines

09507 01
Soldering iron (generic)

About this project

Why I even have an NFC chip implant in my hand?

I'm working as an IT support for a luxury hotel, so there is a lot of doors I need to open every day with a card. That's why I decided to put a 125khz RFID chip inside my hand. Unfortunately, my choice was wrong because we have NFC readers there actually. So I put an NFC chip implant to my other hand. Unfortunately again, I find out our system is not supporting a Mifare Ultralight C chips, what I have in my hand, so I end up with two chips inside my hands & didn't have any use for them. So that's why I decided to implement an NFC reader to my motorbike.

How did I get it implanted?

I bought both RFID & NFC chips from atwww.dangerousthings.com. It arrived in a pre-sterilised package with a syringe with a loaded chip. After I just went to the first tattoo studio (shoutout to Trilogy reading). Was it painful? I would say... 3.6, not great, not terrible :D

Supplies

  • Arduino
  • RC522 NFC reader
  • 5V relay module
  • LM2596 stepdown module

Step 1: Building the hardware

First thought was to use a Raspberry Pi, but that will be too much unnecessary powerful & power-hungry. So the Arduino was the right choice. First I made it work with Arduino UNO, but then made it smaller with Arduino Pro Micro. The connection was pretty simple, few cables & NFC reader was up and running.

Step 2: The code

I used an AccessControl code example from RC522 Arduino library from Github & made a few small changes.

The only change was to make it behave like a toggle switch. Because when I start the bike I want to leave it started until I want to turn it off.

You can download the code here.

Step 3: Building it up

After I just added a 5V relay module to connect to key ignition wires & LM2596 Stepdown module, because motorbike battery is 12V, but we need 5V. In the video, you can see a timelapse of the whole process & final result. Works like a charm.

Of course, I still need to use a key to open the fuel tank or lock the steering, but for starting/stopping engine, it's perfect.

Code

AccessControl_motorbike.inoArduino
No preview (download only).
Github
https://github.com/miguelbalboa/rfid

Schematics

NFC reader
Standard connection for NFC reader
Rfid reader rc522 interface with arduino (1) nzgelz2gn0

Comments

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