KernelPanic Cafe

m0x00cycle

m0x00cycle

A self-replicating, mesh-networked, up-armored off-road motorcycle. For the cyberpunk dystopia we deserve.

This is an ongoing research project, and this page is a wiki. The current status is a rushed hack with parts scavenged from other places prior to a cross-country ride, so please excuse the mess. M0x00cycle-specific software is very early stage. That said, it inherits a many relatively complete features from 0x00/MarigoldOS. Several subsections are ripped straight from the listed projects' READMEs/homepages.

Note: My ability to leave the motorcycle plugged into power (and within range of a usable network) is sometimes limited, so some of the screenshots (like audo mixing) are from my laptop.

TL;DR

Hardware

Radio Inventory

Software

Motorcycle

Hardware

Interior

Lora32

ESP-32 + Lora dev board. Running a Rnode firmware. Routes reticulum traffic via Bluetooth, LoRa, WiFi, and UART. Connected to SBC via USB/UART.

Specs: Dual core 240mhz MCU LoRa (some band) WiFi (probably 2.4 only) Bluetooth (idk my bff jill)

SBC

Single board PC is currently a raspberry PI 3b (You know it, I know it, everyone knows it) running MarigoldOS. It's got a gig of ram, and I scored a high endurance 256GB microsd for $10 on sale a few months ago that needed a home. The m0x00cycle may as well be it, since it's a data-delivery vehicle and intermittent-availability server. Will probably switch to a different board later, or with my tendencies keep this one and add a second.

Keyboard

A last minute addition, it was designed, printed, and installed a couple of hours before a 3k km trip. You can see the original button pod zip-tied to the mirror. The primary input is a minimal chorded keyboard consisting of three pushbutton switches in a 3d-printed sled. It is strapped to the grip with medical gauze and a baby sock with a hole cut in the end. Originally it had four buttons, the fourth being smaller for the pinkie, but I broke that one off on install. So now it's a three-key input. Cest la vie. Currently each switch takes two GPIO pins as a matter of expediency, but going forward a proper pcb and switch matrix will make it a bit smaller and use less GPIO.

grip-switch

IMU

Pololu mini imu v3 Nine-axis IMU, featuring an accelerometer, magnetometer, and gyroscope. This is a motorcycle and it goes offroad. It leans in corners, wheelies in straightaways, stoppies when you're brave, crashes when you're too brave, gets knocked over in parking lots, and otherwise gets beat to snot when ridden like it should be. I'd love to add a second IMU to the front wheel, and a third to the swingarm and auto (or at least semi-auto) tune the suspension at some point.

rtl-sdr

Wideband receive-only SDR. tcxo. More to come.

Ham Radio

Yaesu FTM-10sr. Waterproof control unit and body. 10W VHF 7W UHF. 1/2 wave whip antenna with 3d printed mount.

Cockpit

Ham adapter board

Bidirectional summing stereo->mono + impedance matching and PTT pulldown circuit. Radio outputs stereo audio, raspi microphone is mono. Raspi outputs stero audio and Radio microphone is mono. Matches impedance too, obviously. Also has a PTT circuit that lets the raspi GPIO pull the PTT low to activate the microphone.

adapter

Sound card

USB sound card from a logitech headset exposes two 3.5mm audio jacks that ^ plugs into. That's why you see 'Logitech G430 Headset' as the name for the sound device. If you know how I can change that, please lmk.

PDU

Power Distribution Unit with bluetooth control. Measures and controls power, has 6 ciruits each with software-configurable circuit breakers up from 10-15 Amps. Also has analog/PWM output on every circuit, and can control the circuits based on temperature, speed, external triggers, and a bunch of other fancy-pancy stuff. The unit is an Arboreal Systems Neutrino Black Box. I can't in good conscience recommend it as it's closed source in every way shape and form ("Black Box" is in the name!) and using it requires an app downloaded off google play (A small app at only a couple MB, seemingly handmade, and I doubt it's got telemetry/tracking but haven't checked). That said, the number on the website goes direct to the owners cell phone, and he answers questions and will call you back and that's a rarity these days.

temperature sensor

It's attached to the PDU above. It's remote, and mounted in cool air instead of with the rest of the electronics. Can pull the values over BLE.

power-mgmt

Software

MarigoldOS

The heart of the 0x00 project, MarigoldOS is a nixos-based distro designed to be independent in every single sense of the word.

NNCP

Data-delivery for when the comms are down and radios are off to save power.

NNCP is a collection of utilities for store-and-forward file/mail transfer and command execution. These utilities are intended to help build up small size (dozens of nodes) ad-hoc friend-to-friend (F2F) statically routed darknet delay-tolerant networks for fire-and-forget secure reliable files, file requests, Internet mail and commands transmission. All packets are integrity checked, end-to-end encrypted, explicitly authenticated by known participants public keys. Onion encryption is applied to relayed packets. Each node acts both as a client and server, can use push and poll behaviour model. Also there is multicasting areas support.

Yggdrasil

Yggdrasil is used for nat-busting and to allow the m0x00cycle to have a globally-reachable static ipv6 address. Yggdrasil is an overlay network implementation of a new routing scheme for mesh networks. It is designed to be a future-proof decentralised alternative to the structured routing protocols commonly used today on the Internet and other networks.

The highlights of Yggdrasil are that it is:

Reticulum

Reticulum is a cryptography-based networking stack for building both local and wide-area networks with readily available hardware, that can continue to operate under adverse conditions, such as extremely low bandwidth and very high latency. Reticulum allows you to build wide-area networks with off-the-shelf tools, and offers end-to-end encryption, forward secrecy, autoconfiguring cryptographically backed multi-hop transport, efficient addressing, unforgeable packet acknowledgements and more. Reticulum enables secure digital communication that cannot be subjected to outside control, manipulation or censorship. Reticulum enables the construction of both small and potentially planetary-scale networks, without any need for hierarchical or beaureucratic structures to control or manage them, while ensuring individuals and communities full sovereignty over their own network segments.

Reticulum Highlights:

APRS

APRS is a digital communications information channel for Ham radio. As a single national channel, it gives the mobile ham a place to monitor for 10 to 30 minutes in any area, at any time to capture what is happening in ham radio in the surrounding area. The APRS network has grown to most countries with strong Amateur Radio populations.

APRS features:

All of the above is mapped and viewable on https://aprs.fi

Git

Runs gitea and gitweb servers, but one's going to go. Probably Gitea.

IPXE

Pixieboot/netboot. Plug into the ethernet port to load either a live version (complete with all the debug tools needed for both this and your current OS. It packs a hell of a recovery package.) or the installer, to replace whatever lame OS you're currently using. I guess booting over wifi is possible, but I don't see an option to do that in my bios and am not sure how it would be done.

Software Controlled PTT

This is so software like mumble can automatically pull down the PTT circuit on the radio, allowing things like bridging a voice chat room to the ham radio. See next section.

Dynamic Audio Routing

Pipewire. You've got a bluetooth helmet, a phone that you make calls with, a bike that stores a few dozen gigs of (music/podcasts/erotic audio), a voice chat server, a ham radio, skype, snapchat, youtube, carrier pigeons, and smoke signals. You gotta figure out some way to sort this mess out.

audio-routing

Mumble

Mumble is a free, open source, low latency, high quality voice chat application. Multi-channel audio recorder, positional audio, hundreds of simultaneous connections. Provides a background voice chat room that others can join when you're online.

whisper.cpp

AI Voice Assistant (pretending that voice recognition isn't 90s tech) aka whisper.cpp and pretty much straight up using the command example.

rtl_433

(rtl_433)(https://github.com/merbanan/rtl_433) (despite the name) is a generic data receiver, mainly for the 433.92 MHz, 868 MHz (SRD), 315 MHz, 345 MHz, and 915 MHz ISM bands. It supports a wide range of protocols.

kde connect

project page Mainly used for volume control of all the audio devices right now. It's got a lot of remote control stuff that's mostly useless for a headless/server use case. File transfer is cool. find-my-phone could be useful, but gotta figure out how I want to manage that wrt vpns/lan.

audio-mixer

rnode

Rnode is a firmware that is running on the Lora32 (esp32) board. An RNode is an open, free and unrestricted digital radio transceiver. It enables anyone to send and receive any kind of data over both short and very long distances. RNodes can be used with many different kinds of programs and systems, but they are especially well suited for use with Reticulum. It is self-replicating. The designs, guides and software stored within allows users to create more RNodes, and even to bootstrap entire communications networks, completely independently of existing infrastructure, or in situations where infrastructure has become unreliable or is broken.

bike-1

parts

bike-2