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Open-source RISC-V chips in Bitcoin wallets
174 sats \ 3 comments \ @0xbitcoiner 5 Dec 2023 bitcoin
There are many physical wallets on the market for Bitcoin, but what if you could build your own ?
You can already do it by combining open-source software and RISC-V chips. This is possible with the M5 Stick V device. Or with the Maix Amigo. It is also possible to buy just the chip to put on your PCB.
Read more about RISC-V: https://github.com/topics/m5stickv https://www.hackster.io/MakerIoT2020/a-risc-v-iot-development-pcb-6ffcd8 https://www.protocol.com/enterprise/riscv-chips-architecture-open-source https://medium.com/@nervosnetwork/risc-v-its-benefits-to-blockchain-10b505606d1f
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34 sats \ 2 replies \ @kristapsk 5 Dec 2023
what if you could build your own ?
You already can.
https://github.com/SeedSigner/seedsigner
https://github.com/cryptoadvance/specter-diy
https://github.com/Blockstream/Jade/tree/master/diy
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0 sats \ 1 reply \ @0xbitcoiner OP 5 Dec 2023
Do these projects use RISC V?
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30 sats \ 0 replies \ @kristapsk 5 Dec 2023
No (although they all have software written Python, likely could work with RISC-V boards under Linux too).
My comment was answer to "what if you could build your own ?". It's possible already, without RISC-V, which is just a different CPU arch.
P.S. I plan to experiment with running Bitcoin node on RISC-V one day, so far haven't found any boards I like. Running nodes on different archs is more important than air gapped devices, where priorities should be security and cost, CPU arch is not so important.
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