10 months ago
84770
405
Posted On: December 9th 2025, 11:48 pm
Here’s how I make my Sonics tap to pay. Keep in mind this is very simplified! I will do a in depth write up soon.
Every chip needs a coil of copper wire to act as an antenna, which enables it to communicate wirelessly by picking up the signal from the reader. You can strip the chip from any existing pay card by dissolving it in acetone. You’ll see the chip and wire in about 30min.
All chips run at 13.56Mhz, to tune your home made antenna, start with some magnet wire around 30awg. Start with one end of the wire and strip and solder to the chips original antenna pad, then measure 15 inches exactly. I would then loop the wire tightly to around 4 times, I would then test at a vending machine and touch the other end to the other side of the chip. The better tunned, the better range up to about an inch.
If it works, congrats! You’re the next Doctor, buy yourself a drink to celebrate and solder it together and put it into something cool, like a sonic screwdriver! Key point though, anything metal is going to block the signal so you might have to make new parts out of printed pieces like resin or pla.
DISCLAIMER: do at your own risk, and don’t use your actual credit card, I’d recommend getting a loadable one and trying that.
#NFCPayment #TechHacks #SonicScrewdriver#hobbies#everyday##sonicscrewdriver#doctorwho#tvprop#hobbyist#modelmaker#3dprinting#cncmachining
Every chip needs a coil of copper wire to act as an antenna, which enables it to communicate wirelessly by picking up the signal from the reader. You can strip the chip from any existing pay card by dissolving it in acetone. You’ll see the chip and wire in about 30min.
All chips run at 13.56Mhz, to tune your home made antenna, start with some magnet wire around 30awg. Start with one end of the wire and strip and solder to the chips original antenna pad, then measure 15 inches exactly. I would then loop the wire tightly to around 4 times, I would then test at a vending machine and touch the other end to the other side of the chip. The better tunned, the better range up to about an inch.
If it works, congrats! You’re the next Doctor, buy yourself a drink to celebrate and solder it together and put it into something cool, like a sonic screwdriver! Key point though, anything metal is going to block the signal so you might have to make new parts out of printed pieces like resin or pla.
DISCLAIMER: do at your own risk, and don’t use your actual credit card, I’d recommend getting a loadable one and trying that.
#NFCPayment #TechHacks #SonicScrewdriver#hobbies#everyday##sonicscrewdriver#doctorwho#tvprop#hobbyist#modelmaker#3dprinting#cncmachining
Comments (405)
9 days agoscifis_random_fandoms
I have the personalized screwdriver that I got ten years ago for my cosplay. I have been wanting to learn how to or have it cast as a proper metal sonic as well as wanting to try this concept where the chip scans when the button is pressed
4 months agoharveycowie2
Try and make a classic one, and put it in the halo ring, along with the bullet.
6 months agobrooklenbridge_13
Now to turn a phone into either a) the kimmunicator b) the compact from totally spies or c) both 😁
6 months agoelkara_06
It might work on the 11th Docs screwdriver, the one w the green tip. It has 3 plastic parts that open so maybe you could put it in that
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