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+# RustyToken (I'm open to new names)
+
+IT's a **TOY** utility to make a TOTP keychain.
+This it's a **TOY**, Please don't keep your top priority keys here.
+I disclaim any responsability for anything that may happen to your TOTP keys.
+
+## Hardware
+To make your own RustyToken you'll need:
+- 1 Arduino (UNO/Nano)
+- 1 RTC DS3231
+- 1 Screen STN LCD 16x2 without i2c interface
+- 2 push buttons
+- 1 220 ohms
+- A lot of wire
+
+## Software
+To build the firmware for your Arduino you'll need:
+- A linux machine (I don't know if this compile on another OS)
+- All the rust env tools (rustc, cargo, rustup)
+- The Rust's nightly version
+- all the AVR env build tools (avr-gcc, avr-binutils, avr-libc, avrdude)
+- Python3 to use the tool
+
+## How to build and load the firmware
+To build the firmware you execute:
+```Bash
+$ ./build.sh
+```
+
+And to upload it to the Arduino, connect it to the computer and execute:
+```Bash
+$ ./upload.sh
+```
+
+IF this step fails, edit the `upload.sh` script and change the `/dev/ttyUSB0` to the Serial port assiged to your Arduino (You can check this path with the Arduino IDE)
+
+## Diagram
+```Rust
+todo!();
+```