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Watch Application System in Python
==================================
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Introduction
------------
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Currently in its infancy wasp-os provides only a little more than a simple
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digital clock application for [PineTime ](https://www.pine64.org/pinetime/ )
together with access to the MicroPython REPL for interactive testing and
tweaking. However it keeps time well and has enough power saving
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functions implemented that it can survive for well over 72 hours between
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charges so even at this early stage it is functional as a wearable
timepiece.
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Wasp-os includes a robust bootloader based on the Adafruit NRF52
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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.
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Videos
------
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[](https://www.youtube.com/watch?v=YktiGUSRJB4)\
[An M2 pre-release running on Pine64 PineTime ](https://www.youtube.com/watch?v=YktiGUSRJB4 )
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[](https://www.youtube.com/watch?v=tuk9Nmr3Jo8)\
[How to develop wasp-os python applications on a Pine64 PineTime ](https://www.youtube.com/watch?v=tuk9Nmr3Jo8 )
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[](https://www.youtube.com/watch?v=kf1VHj587Mc)\
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[Developing for Pine64 PineTime using wasp-os and MicroPython ](https://www.youtube.com/watch?v=kf1VHj587Mc )
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Documentation
-------------
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Wasp-os is has [extensive
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documentation](https://daniel-thompson.github.io/wasp-os/) which includes a
detailed [Applicaiton Writer's
Guide](https://daniel-thompson.github.io/wasp-os/appguide.html) to help you get
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started coding for wasp-os as quickly as possible.
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Building from a git clone
-------------------------
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Get the code from
[https://github.com/daniel-thompson/wasp-os ](https://github.com/daniel-thompson/wasp-os ) .
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~~~
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pip3 install --user click serial pyserial
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make submodules
make softdevice
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make -j `nproc` BOARD=pinetime all
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~~~
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Note: *You will need a toolchain for the Arm Cortex-M4. wasp-os is developed and tested using the [GNU-RM toolchain](https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm) (9-2019-q4) from Arm.*
Note #2: *There are known problems with toolchains older than gcc-7.3 due to problems with link-time-optimization (which is enabled by default)*
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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.*
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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 (and won't properly enter deep sleep
modes).
To install using Android device:
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* 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.
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To install using Linux and ota-dfu:
* Look up the MAC address for your watch (try: `sudo hcitool lescan` ).
* Use ota-dfu to upload `micropython.zip` to the device. For example:
`tools/ota-dfu/dfu.py -z micropython.zip -a A0:B1:C2:D3:E3:F5 --legacy`
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At the end of this process your watch will show the time (03:00) together
with a date and battery meter. When the watch goes into power saving mode
you can use the side button to wake it again.
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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:
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~~~
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^C
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import demo
demo.run()
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# After watching the demo for a bit...
^C
wasp.app.draw(watch)
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wasp.system.run()
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~~~
To set the time and restart the main application:
~~~
^C
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watch.rtc.set_localtime((yyyy, mm, dd, HH, MM, SS))
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wasp.system.run()
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~~~
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Or just use:
~~~
./tools/wasptool --rtc
~~~
which can run these commands automatically.
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As mentioned above there are many drivers and features still to be
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developed, see the [TODO list ](TODO.md ) for current status.
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Screenshots
-----------
