SeedSigner is an open source bitcoin signing device (hardware wallet) that you can build from scratch!
This is all you need to build your own SeedSigner:
1. Raspberry Pi Zero (version 1.3)
2. WaveShare 1.3 inch LCD hat with 240×240 pixel display
3. Pi Zero compatible camera module
4. MicroSD Card with at least 4GB capacity
- 3D printed case
- USB power cable
How to build summary:
Step 1: Purchase the parts.
Step 2: Download and verify SeedSigner software.
Step 3: Flash SeedSigner software onto SD card.
Step 4: Assemble all the parts.
Step 4: Boot your SeedSigner up.
How to build a SeedSigner video guide:
Seedsigner site: https://seedsigner.com/
SeedSigner on GitHub: https://github.com/SeedSigner/seedsigner
SeedSigner Keybase: https://keybase.io/seedsigner
Remove WiFi video + research: https://twitter.com/ColeTU/status/1655232871622234120