bitcoin-tutorials/satochip

Get started with Satochip

This setup is working out of the box on:

• TailsOS (can remain offline, but to see new transactions and balances needs an internet connection.)
• Debian 12
• Windows 10

Connect the Satochip Card

• Open the Smartcard Reader by turning

• Plug in the card to the reader with the chip facing up
• Connet the Reader to a USB port
• The reader will start flashing

Download and run Sparrow Wallet

• Find the files for your OS at sparrowwallet.com/download
• Follow the steps to verify the downloaded binary. Can use Sparrow Wallet itself to do the verification once installed.
• If you don't have your own server use one public server which you know, eg.: electrum.diynodes.com

Import the Satochip wallet to Sparrow Wallet

• Select New Wallet

• Type a name and Create Wallet

• Select Airgapped Hardware Wallet

• Click Import next to Satochip

• Enter the PIN code then click Import again

• Can see the details for the default derivation path. Save with Apply.

• It is optional to set a password to protect the read-only wallet on saved on the desktop.

• Select the Transaction tab on the left to see the balance and transaction history of the wallet on the card.

• Make sure to wait for Finished loading

• In case transactions are missing despite a connected server can try increase the Gap limit in Settings -> Advanced

• Refer to the Sparrow Wallet documentation to transact using your Satochip: https://sparrowwallet.com/docs/coldcard-wallet.html#sending-bitcoin

Reference:

• Find the original Satochip cards at: satochip.io/product/satochip

• For the DIY version see this gist

• The Smartcard Reader pictured: ACS ACR39U-N1 PocketMate II USB Smart Card Reader

  • https://www.amazon.co.uk/dp/B0758TS5JR/
  • https://www.aliexpress.com/item/1005002034557322.html

• The Card pictured: JCOP Chip Card Dual Interface Chip Magnetic Stripe Java Card J3H145 (no NFC)

  • https://www.alibaba.com/product-detail/JCOP-Dual-Interface-Support-RSA4096-ECC_1600070838098.html