Matching Keychain with @yayabskt N°1

Hellloooo with a friend we decided to make a matching keychain.
i’m a complete beginner but we’ll make it work :)

The main features :

• they will have a nfc reader so when they are close there will be an animation
• they will have a gps module and a compasse module so we can see how far away we are and in what direction the other is
• it will have a fun button to send a vibration and/or an animation to the other keychain
• it will have a screen…. ofc

The design

We decided to make our keychain Jack cooper and BT7274 from titanfall since we are big Titanfall 2 fans !!

what we will need :

with the help of claude ai we made a list of the different component for two keychain

• Xiao esp 32 c3 x2
• OLED SH1106 x2
• PN532 x2
• NFC tags
• NEO M8N x2
• QMC5883L x2
• Coin vibration motor 3V 10mm x2
• Transistor BC547 x2
• resistance 200k x4
• resistance 1k x2
• 500 mAh battery or less x2
• Switch x2
• Push button x2
• Tp 4056 x2
• Magnetic pogo pins (charge) X2

Schematics:

I made it with the help of claude ai.

I’m really proud of it even if it’s not the most complex one or the most well made one. :)