Resources¶

General Links¶

Evidence of need
Similar products
- PC Gamer Bike
- BitGym
- Virtuix Omni VR treadmill
  - Ars Technica Article
  - Ars Technica Demo Video
- Virzoom on The Verge - only works with specialized games from the vendor and costs about $250 plus $10/month for subscription service (fitness tracking + games)
Moving from keyboard to joystick interface
- Turning an Arduino Leonardo into a joystick
- USB Host Shield
Sensors considered
- Rotary Encoders
- Homemade Rotary Encoder - used in very first prototype, but quickly abandoned because the mechanical interface was difficult to maintain
- Reed switch (Link 1 | Link 2) - v0.1 and v0.2 used reed switches (originally off of an old Bike Computer, now purpose selected)
- Hall Effect Sensor - under consideration for v0.3
  - Arduino Playground
  - Blog post covering three types of Hall Effect Sensors - this is a very good resource, especially with respect to the types of sensors to consider
  - Arduino post on using Hall Effect sensor to measure RPM
  - Forum post about measuring RPM and resetting to 0 when motion stops - lengthy discussion and covers many of our goals
  - Forum post about calculating RPM on a bike - not really enough details here, but still documenting it
USB Tester from Adafruit - might be useful for later prototype development
Data Smoothing - Arduino tutorial dealing with smoothing out noisy data
Production & Design Work
- Monday Experiment: Bootloading an ATmega32u4 with Arduino - minimum electronics necessary to create a Leonardo clone, important documentation for building completely custom PCB/Shrinkifying the Holoseat
- PCB Routing Service - Team at Dangerous Prototypes provides PCB routing/layout service for OSHW projects at $35/hour (3 hour min)
- Bulk programmer for Arduino
- OSH Park - community PCB order site (great review on G+)
Submitting Arduino Projects to the Arduino Blog

Replacing the Leonardo¶

Turning the Pi Zero Into a USB Gadget

J.'s Research into Using Node.js + Nodebots to Build a Series of Test Rigs¶

J. is investigating how to automate the test rig to minimize user induced error during sensor comparison tests and later performance tests. This plan was inspired by working with Nodebots.

Examples
- Practical Introduction to iot with Arduino + Node.js + Plotly - older plot.ly info, but still a good resource
- Tutorial that uses sqlite and Node.js - really about Cozy, but covers sqlite with Node.js which looks like a good choice if we run the test rig from an RPi
- Real Time Weather Data Visualizations with socket.io and D3.js
- Realtime Data Visualization Using D3, serial port, & socket.io
- System load monitoring with nodejs+socket.io+flot
Raspberry Pi and NodeBots
- Building Raspberry Pi nodebots
- Loading I2C, SPI and 1-Wire drivers on the Raspberry Pi under Raspbian wheezy
- raspi-io - An IO plugin for Johnny-Five that provides support for the Raspberry Pi
Tools/Libraries
- Nodebots
- Node Serial - for connecting from NodeBots code to the already built Arduino device for running test rig at specified speed
- Plot.ly Open Source Announcement
- Backbone.js - MVC JavaScript single page app environment
- Socket.io
- Arduino Experimenter's Guide for NodeJS
- NodeSchool