Roadmap

0.4: Integration, Fit and finish

For 0.4 we focus on improving the watch/phone integration whilst also taking steps to improve the general fit and finish.

Bootloader

• [ ] Stay in bootloader after battery run down
• [ ] Implement power off support (no splash screen)

Micropython

• [ ] Use SoftDevice sleep logic
• [ ] Rebase on later version of MicroPython

Wasp-os

• [ ] Watch/phone integration with GadgetBridge
  • [ ] Music player support
  • [ ] Set date/time
  • [ ] Fully fledged wasp-os device class

wasptool

• [ ] Integrate a more powerful minifier into the wasptool paste() method

0.3 (a.k.a. M3): Smartwatch

At M3 we start to build out full fitness tracking and notification functionality.

Reloader

• [X] Pre-flash image verification
• [X] Post-flash image verification
• [X] Board identity check
• [X] UICR update support
• [X] Improve linker map (everything except linker table at +256K)
• [X] mcuboot
  • [X] Reconfigurable entry point (allow reloader to run from mcuboot)
  • [X] Allow reloader to install mcuboot and flash app (from wasp-bootloader)
  • [X] Allow reloader to install wasp-os (from mcuboot)

Wasp-os

• [X] Enable heart rate sensor
  • [X] HRS3300 driver
  • [X] HRS data post-processing
  • [X] Heart rate counter app
• [X] Notifications
  • [X] BLE notification protocol
  • [X] Notification popups
  • [X] Notification app (show notification history)
  • [X] Add (out-of-tree) Gadgetbridge support
• [X] Step counting
  • [X] BMA421 driver
  • [X] Step counter app
• [X] Automatically enter SPI flash power saving mode
• [X] Documentation
  • [X] Contributors guide (and code of conduct)
  • [X] Debugging and troubleshooting guide
  • [X] Screenshots for bootloader and all applications
  • [X] Improve the install guide
• [X] Simulator
  • [X] Add a simple skin for better screenshots
  • [X] Full swipe detection (avoid keyboard)

0.2 (a.k.a. M2): Great developer experience

The focus for M2 is to make development faster and easier by providing a file system and file transfer code. This allows much faster development cycles compared to full downloads of frozen modules. Additionally support for multiple event-driven applications will be added during M2 to further help developers by providing example applications.

Bootloader

• [X] OTA bootloader update
• [X] RTC time measurement whilst in bootloader

MicroPython

• [X] SPI FLASH driver
• [X] Enable LittleFS on SPI FLASH (at boot)
• [X] BLE file transfer

Wasp-os

• [X] Add dd/mm/yyyy support to RTC
• [X] Button driver (interrupt based)
• [X] Touch sensor driver
• [X] Event driven application framework
• [X] Stopwatch app
• [X] Settings app
• [X] PC-hosted simulation platform
• [X] Documentation
  • [X] Sphinx framework and integration with github.io
  • [X] Document bootloader protocols
  • [X] Application writer’s guide
  • [X] Write full docstring documentation for all wasp-os components
• [X] Application Launcher
• [X] Debug notifications
• [X] Multi-colour RLE images
  • [X] Optimized “2-bit” RLE encoder and decoder
  • [X] Logarithmic RBG332 <-> RGB56516bit color space conversion

M1: Dumb watch feature parity

The focus for M1 is to get wasp-os both to meet feature parity with a dumb watch and to have a bootloader and watchdog strategy that is robust enough to allow a PineTime case to be confidently glued shut.

Bootloader

• [X] Basic board ports (PineTime, DS-D6, 96Boards Nitrogen)
• [X] OTA application update
• [X] Enable watchdog before starting the application
• [X] Splash screen
• [X] Ignore start button for first few seconds

MicroPython

• [X] Basic board ports (PineTime, DS-D6, 96Boards Nitrogen)
• [X] Long press reset (conditional feeding of the watchdog)
  • [X] Feed dog from REPL polling loop
  • [X] Feed dog from a tick interrupt

Wasp-os

• [X] Display driver
  • [X] Display initialization
  • [X] Bitmap blitting
  • [X] RLE coder and decoder
  • [X] Optimized RLE inner loops
• [X] Backlight driver
• [X] Button driver (polling)
• [X] Battery/charger driver
• [X] Simple clock and battery level application
• [X] Basic (WFI) power saving
• [X] Implement simple RTC for nrf52