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Interface Guidelines for COBI.Bike Modules

The COBI.Bike DevKit is the world's first platform that offers everything you need to easily design & build interactive experiences for riding a bike. The COBI.Bike hardware and software takes away all the hard work (e.g. securely mounting and powering the phone, remote control, acquiring sensor-, eBike- and riding data) so that developers can fully focus on bringing new experiences to life with a stream of riding data and a fullscreen canvas embedded in the COBI.Bike dashboard:

Introducing COBI.Bike Modules.

COBI.Bike

Understanding the Biking Context

COBI.Bike enables developers to design interactive modules that are loved by users while keeping them safe on the road. This is breaking new territory for developers and UX designers – so it's all the more important to understand this challenging new context:

  • Directly interacting with a phone on the road (by using the touchscreen) is dangerous and often illegal. A handlebar remote (COBI.Bike Thumb Controller or Bosch Remote) is therefore a mandatory component of the COBI.Bike system while intuitive button mappings and reassuring feedback should enable effortless interactions.
  • Cyclists concerned about battery life may turn the display off temporarily while riding. With COBI.Bike the remote control and voice feedback are still available to perform basic interactions and receive feedback.
  • Picture the cyclist with hands on the handlebars & eyes on the road while riding. A module must not disturb the riders' focus on traffic and the road ahead. However, the module may provide guidance through voice feedback or glanceable visual hints – any feedback beyond that must be queued for later.
  • The cyclist may take short breaks e.g. at traffic lights. Since COBI.Bike detects these breaks automatically you can take advantage of them easily and adapt your user interface to accept touch input, allow on-screen keyboards and show more elaborate information that has been queued up during the ride.
  • COBI.Bike supports both Bikes & E-Bikes, External Sensors (e.g. Cadence & Heart Rate), 4- and 6-Button Thumb Controllers. Be sure to support these configurations to maximize the audience and make the most of the experience of using your module. Our COBI.Bike Simulator makes that easy to test.
  • Keep in mind that the phone is mounted on the handlebars and the viewing distance is further compared to holding it in your hand.

Guiding Principles

Keep it bold: Adaptive & Glanceable Design

  • Keep your screendesign glanceable – use bold colors, high contrasts and large typography.
  • Resize screen elements dynamically when the bike starts moving and hide descriptive elements (like labels) to increase design clarity.
  • Design your module to be displayed on Android 4.4+ and iOS 9.0+ devices with screen sizes from 4" up to 6"

Do not disturb: Non-Intrusive User Interface

  • Do not require user feedback while riding at anytime. If important events occur, rely on voice feedback to inform and follow-up as soon as the bike stops moving.
  • When designing a game consider pausing automatically when the bike starts moving.

The screen is optional: Remote Control, Touch & Voice Feedback

  • Make the most relevant interactions accessible via Thumb Controller taps while riding.
  • Bring in touch and more sophisticated interactions whenever the bike isn't moving.
  • Take advantage of voice feedback to enable users to perform actions in your module without looking at the screen.
  • Depending on the bike different Thumb Controller buttons are available to your module (indicated by Thumb Controller Type). Select is always available. Up and Down are always available, if E-Bike drive control is disabled by your module. Left and Right are always available on the 6-Button COBI.Bike Thumb Controller and Bosch Nyon remote.

Plan, Ride, Configure

COBI.Bike modules support different contexts to keep touch interaction-heavy tasks separate from the clean, simplistic riding interface. We call the former scenario »Edit« and the latter »Experience«.

Modules are expected to support the following view states:

1. Experience (Landscape orientation only, mandatory)

The main user interface for cyclists on the road. Optimized for use with thumb controller and touch – depending on whether the touch interface is enabled.

2. Edit (Portrait & Landscape orientation, mandatory)

Touch-only interface available before and during the ride to tweak module-specific settings.

3. Overview (Portrait orientation only, optional, available later)

Touch-only interface on the home screen available before the ride. Often a slight variation of »Experience« optimized for portrait orientation and touch.

Offline first

Recreational cycling often takes place in areas with no or weak cell signal. COBI.Bike is designed to gracefully handle offline scenarios at all times – so should your module. Take advantage of Web Standards like Application Cache Manifests to speed up loading times & enable offline use or Local Storage to store application state and user preferences.