This code is for the dual-purpose hash-finder and hash-verifier device used in the @base58btc World Famous Bitcoin LARP.
It allows for a user to enter in a previous block hash, transaction commitment, time, target, and nonce.
If a nonce is provided, the BASIC will show the blockhash produced by the inputs.
If the nonce is left empty or set to zero, the unit will begin hunting for a nonce that will produce a blockhash underneath the given target value.
Once it finds a suitable nonce, it will display first the winning nonce. You can advance
the screen to the Blockhash that nonce hashes to with the # key.
Be sure to write down the winning nonce value before advancing to the Blockhash screen.
To enter a number, and advance to the next input: press the # key.
To erase a number: press the * key.
Thanks to @dni and @arcbtc we have a WebInstaller available for the LARP BASICs.
Go to https://basic.lnbits.com/ to install the latest build on your own device!
Note: You'll need Chrome or a Chromium browser that supports the WebInstaller protocol.
Ben Arc and the LNPoS project for the inital form factor, code, and 3D case + build instructions.
Stakamoto and the Houston Astrobits for discovering and building the initial set of BASICs for @base58btc
- Lilygo TTGO T-Display
- Keypad membrane (these big ones are easy to find, these smaller ones will be used for workshops by arcbtc).
- Angled male/male GPIO pins
- Download/install latest Arduino IDE
- Install ESP32 boards, using boards manager
- Copy these libraries into your Arduino IDE library folder
- Plug in T-Display, from Tools>Board>ESP32 Boards select TTGO LoRa32 OLED V1
Note: If using MacOS, you will need the CP210x USB to UART Bridge VCP Drivers available here https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers