Specter DIY
DIY hardware wallet by the Specter team (Crypto Advance). Built on STM32 dev boards with attached displays.
Hardware (DIY)
- STM32F469-Discovery board (~$80).
- Custom firmware via PlatformIO.
- USB connection.
Operation
- Standard PSBT signing flow via Specter Desktop.
- Single-coin (Bitcoin) signing.
- Multisig coordination via Specter Desktop.
Compared to other DIYs
| Aspect | Specter DIY | SeedSigner | Krux |
|---|---|---|---|
| Hardware | STM32 dev board | Raspberry Pi | Sipeed M5StickV |
| Cost | Mid ($80) | Low ($60) | Low ($50) |
| Statelessness | Stateful | Stateless | Stateless |
| Coordination | Specter Desktop | Multiple wallets | Multiple wallets |
| Tinkering required | Some | Some | Some |
Use cases
- Specter Desktop ecosystem users wanting matching hardware.
- STM32 enthusiasts preferring real hardware-level dev.
Limitations
- Smaller community than SeedSigner / Krux.
- STM32 hardware availability sometimes limited.