Raspberry Pi Zero Trezor Crypto Hardware Wallet

thingiverse

This is a case for my DIY Trezor hardware wallet for my crypto currencies using a Raspberry Pi Zero WH and a generic 128x64 OLED hat. I was inspired when I saw this DIY Pi Trezor One tutorial: https://www.pitrezor.com/2018/02/pitrezor-homemade-trezor-bitcoin-wallet.html I was also inspired by these projects: https://www.thingiverse.com/thing:4887588 https://www.thingiverse.com/thing:4790008 This design makes use of the Key 2 button and the Joystick Button of the generic OLED hat for the RPi Zero. The Trezor firmware will tell you to press the left button to cancel and the right button to confirm. The beauty of this design is you actually have left and right buttons, in sync with what the screen will tell you. Parts needed: 1. Raspberry Pi Zero - https://www.amazon.com/Raspberry-Pi-Zero-WH-Pre-Soldered/dp/B07W3GJTM1/ 2. 128x64 OLED hat - https://www.amazon.com/XYGStudy-Display-128x64-Interface-Raspberry/dp/B088KM41SP/ 3. 16 GB microSD card - https://www.amazon.com/SanDisk-Ultra-SDSQUNS-016G-GN3MN-UHS-I-microSDHC/dp/B074B4P7KD/ 4. (4 pcs only) M3 x 20 caphead hex screws - https://www.amazon.com/iExcell-Socket-Screws-Bolts-Finish/dp/B08B1V741X 5. (4 pcs only) M3 nuts - https://www.amazon.com/Uxcell-a16033100ux0563-Carbon-Steel-Hexagon/dp/B01IWUSDYY ----------------------------------------------------------------------------------- My config settings for the firmware (this section only makes sense when you flash the SD card with the Pi Trezor firmware): export TREZOR_OLED_SCALE=1 export TREZOR_OLED_TYPE=5 export TREZOR_OLED_FLIP=1 export TREZOR_GPIO_YES=13 export TREZOR_GPIO_NO=20 I traced the OLED hat traces if you want to change the Y/N buttons in the config file, but you'd also need to design your own case if you want to change buttons: Key 1 - GPIO 21 Key 2 - GPIO 20 Key 3 - GPIO 16 Joystick: Up - GPIO 19 Down - GPIO 6 Left - didn't find it, might be GPIO 20, but it doesn't work on mine Right - GPIO 5 Button - GPIO 13