Watch Application System in Python
==================================

Currently WASP is primarily useful as a pre-packaged MicroPython
development environment for PineTime. Whilst there are plans to grow 
it into a smart watch runtime for Pine64 PineTime and the Desay
DS-D6 fitness  tracker this goal has yet to be achieved.

WASP includes a robust bootloader based on the Adafruit NRF52
Bootloader. It has been extended to make it robust for development on
form-factor devices without a reset button, power switch, SWD debugger
or UART. This allows us to confidently develop on sealed devices relying
only on BLE for updates.

Video
-----

[![WASP bootloader and MicroPython running on Pine64 PineTime](https://img.youtube.com/vi/W0CmqOnl4jk/0.jpg)](https://www.youtube.com/watch?v=W0CmqOnl4jk)

Building from a git clone
-------------------------

~~~
make submodules
make softdevice
make -j `nproc` BOARD=pinetime all
~~~

Installing
----------

Note: *If you have a new PineTime then it will have been delivered with
flash protection enabled. You must disable the flash protection before
trying to program it.*

* Use an SWD programmer to install `bootloader.hex` to the PineTime.
  This file is an Intel HEX file containing both the bootloader and
  the Nordic SoftDevice. Be careful to disconnect cleanly from the
  debug software since just pulling out the SWD cable will mean the
  nRF52 will still believe it is being debugged.
* Copy `micropython.zip` to your Android device and download nRF Connect
  for Android if you do not already have it.
* In nRF Connect, choose settings and reduce the DFU packet count from
  10 to 4.
* Connect to PineDFU using nRFConnect, click the DFU button and send
  `micropython.zip` to the device.

At the end of this process your watch will show the time (12:00) and a
battery meter. When the watch goes into power saving mode you can use
the side button to wake it again.

At this point you will also be able to use the Nordic UART Service to
access the MicroPython REPL, although currently you must send ^C to
interrupt the program that updates the watch display.

Just for fun try:

~~~
^C
import demo
demo.run()
# After watching the demo for a bit...
^C
wasp.app.draw(watch)
wasp.run()
~~~

To set the time and restart the main application:

~~~
^C
watch.rtc.set_time((hh, mm, ss))
wasp.run()
~~~

At this stage there are many drivers and features still to be
developed, see the [TODO list](todo.md) for current status.