The Fibonacci sequence is a sequence of numbers created by the Italian
mathematician Fibonacci in the 13th century. This is a sequence starting with
1 and 1, where each subsequent number is the sum of the previous two. For the
clock I used the first 5 terms: 1, 1, 2, 3 and 5.
The screen of the clock is made up of five squares whose side lengths match
the first five Fibonacci numbers: 1, 1, 2, 3 and 5. The hours are displayed
using red and the minutes using green. When a square is used to display both
the hours and minutes it turns blue. White squares are ignored.
To tell time on the Fibonacci clock you need to do some calculations. To read
the hour, simply add up the corresponding values of the red and blue squares.
To read the minutes, do the same with the green and blue squares. The minutes
are displayed in 5 minute increments (0 to 12) so you have to multiply your
result by 5 to get the actual number.
Allows a very small set of user preferences (including the date and
time) to be set on the device itself.
Note
The settings tool is not expected to comprehensively present every
user configurable preference. Some are better presented via a
companion app and some particular exotic ones are perhaps best
managed with a user-provided main.py.
Most applications are disabled by default at boot in order to conserve
RAM (which is in short supply and very useful to anyone wanting to
write an application). This tools allows us to boot and conserve RAM
whilst still allowing users to activate so many awesome applications!
The pager is used to present text based information to the user. It is
primarily intended for notifications but is also used to provide debugging
information when applications crash.
Flash the relatively powerful HRS LED repeatedly, mostly for signaling purposes.
Frequency and intensity can be changed.
The blinking is handled by the HRS, so this app consumes very little power.
With BLE and/or step counter disabled and blinking frequency set to the minimum,
the watch’s battery will last for many days.
This demo is simply an alternating sweep of the Pine64 and
MicroPython logos. It cycles through a variety of colours
and swaps between the logos every 5 images (so if you change
anything make sure len(colors) is not a multiple of 5).
The demo also includes code to keep the devie awake making it
suitable to run as an always-on application to demonstrate wasp-os at
conferences and shows.
Note
Due to it’s niche purpose and relatively large size this app is not
included by default in the flash images. It must be separately installed
and enabled.
This app shows the bluetooth status and provides a button to disable/enable it.
Unfortunately, re-enabling bluetooth normally has some issues, so as a
workaround the “enable” button restarts the watch.
An application that shows images stored in the filesystem.
The images have to be uploaded in the “gallery” directory.
The images have to be encoded as BMP RGB565 data in big endian byte order.
To encode them, you can use GIMP (File → Export, select the BMP format,
set “R5 G6 B5” in “Advanced Options”), or ImageMagick:
This program also implements some (entirely optional) debug features to
store the raw heart data to the filesystem so that the samples can be used
to further refine the heart rate detection algorithm.
To enable the logging feature select the heart rate application using the
watch UI and then run the following command via wasptool:
Once debug has been enabled then the watch will automatically log heart
rate data whenever the heart rate application is running (and only
when it is running). Setting the debug flag to False will disable the
logging when the heart rate monitor next exits.
This app shows a dot that moves depending on the orientation of the watch.
A tap opens a menu with the option to calibrate or reset the level.
To calibrate, place the watch on a flat surface, then tap the “Calibrate”
button while ensuring the watch is stationary.
This app is a simple morse translator that also doubles as a notepad.
Swipe up for a line, swipe down for a dot, tap for end letter, double tap for
end word. Swipe right for space, twice for newline. Swipe left to delete
character.
Up to 7 lines of translation will be displayed on a 240x240 screen, and old
lines will be deleted.
There is a preview of the next letter at the bottom of the screen.
A pomodoro app, forked from timer.py. Swipe laterally to load presets and vertically
to change number of vibration. Vibration patterns are randomized if vibrating
more than 4 times to make sure you notice.
Death by isolation: a cell dies if has fewer than two live neighbours.
Death by overcrowding: a cell dies if it has more than three live
neighbours.
Survival: a living cell continues to survive if it has two or three
neighbours.
Reproduction: a dead cell comes alive if it has exactly three
neighbours.
On 11 April 2020 John H. Conway who, among many, many other
achievements, devised the rule set for his Game of Life, died of
complications from a COVID-19 infection.
The Game of Life is the first “toy” program I ever recall seeing on a
computer (running in a mid 1980s Apple Macintosh). It sparked something
even if “toy” is perhaps an underwhelming description of the Game of Life.
Either way it occupies a special place in my childhood. For that, this
application is dedicated to Professor Conway.
You have to direct the white snake to the food block (blue dot) by swiping in the desired direction. You must not hit the border or the snake’s body itself.
Every time the snake eats the food, its length increases by 1. (In the current version there is an error that the length of the snake is not increased by 1 when the snake gets the food for the first time. This has to be fixed).
Once the game is over, you can try again by tapping on the screen and then swipe in the direction you want to move. If you want to leave the game, simply wipe in any direction once the game is over.
There is in intro/menu screen which has very brief instructions, allows you to set the opponent level and gives some stats on the number of games you have won. Touching the screen sets the level from 0 to 6 which corresponds to the number of lookahead plies. Swiping down enters the main game. On your turn a red square counter will appear on the top row. Touch the screen to move to the desired column, optionally touch again if you don’t like your choice then swipe down to commit to playing that column. The computer will reply with a yellow counter after a delay (dependent on level). Your aim is to get four in a row before the computer does. At end of game swipe down to return to the intro/menu screen.
