931c7c1c51
This 2-in-1 PR started with the goal of support the Bangle.js 2 smartwatch with *no USB*. * Adds "secure" DFU build support with a committed private key. * Adds 3-bit color support with one dummy bit for the JDI memory display * Allows nrf boards to have a board_background_task() run in RUN_BACKGROUND_TASK. This is needed because the Bangle.js 2 uses the watchdog to reset. * Renamed port_background_task() to port_background_tick() to indicate it runs on tick, not RUN_BACKGROUND_TASK. * Marks serial connected when the display terminal is inited. This means that safe mode messages show up on the display. ACep, 7-color epaper displays also pack 3 bits in 4. So, I added that support as well. * Adds 3-bit ACeP color support for 7-color e-paper displays. (Not watch related but similar due to color depth.) * Allows a refresh sequence instead of a single int command. The 7" ACeP display requires a data byte for refresh. * Adds optional delay after resetting the display. The ACeP displays need this. (Probably to load LUTs from flash.) * Adds a cleaning phase for ACeP displays before the real refresh. For both: * Add dither support to Palette. * Palette no longer converts colors when set. Instead, it caches converted colors at each index. * ColorConverter now caches the last converted color. It should make conversions faster for repeated colors (not dithering.)
CircuitPython ============= .. image:: https://s3.amazonaws.com/adafruit-circuit-python/CircuitPython_Repo_header_logo.png |Build Status| |Doc Status| |License| |Discord| |Weblate| `circuitpython.org <https://circuitpython.org>`__ \| `Get CircuitPython <#get-circuitpython>`__ \| `Documentation <#documentation>`__ \| `Contributing <#contributing>`__ \| `Branding <#branding>`__ \| `Differences from Micropython <#differences-from-micropython>`__ \| `Project Structure <#project-structure>`__ **CircuitPython** is a *beginner friendly*, open source version of Python for tiny, inexpensive computers called microcontrollers. This package contains the "stubs", or type definitions for CircuitPython. With some advanced editors and other tools, this information can be identify TypeErrors, AttributeErrors, and other problems before you deploy your code to a device and can even help autocomplete your code. .. |Build Status| image:: https://github.com/adafruit/circuitpython/workflows/Build%20CI/badge.svg :target: https://github.com/adafruit/circuitpython/actions?query=branch%3Amain .. |Doc Status| image:: https://readthedocs.org/projects/circuitpython/badge/?version=latest :target: http://circuitpython.readthedocs.io/ .. |Discord| image:: https://img.shields.io/discord/327254708534116352.svg :target: https://adafru.it/discord .. |License| image:: https://img.shields.io/badge/License-MIT-brightgreen.svg :target: https://choosealicense.com/licenses/mit/ .. |Weblate| image:: https://hosted.weblate.org/widgets/circuitpython/-/svg-badge.svg :target: https://hosted.weblate.org/engage/circuitpython/?utm_source=widget