It is needed to control the chip select pin when the st7789 display is
wired together with some other SPI device on the same bus, for example
if it shares the bus with SPI flash.
This required some refactoring of the code to correctly set the CS pin
everywhere. Notably, this removes the public Command, Data, Tx, and Rx
methods which poke into private details of the st7789 driver and are
therefore best hidden in my opinion.
* Unify the Rotation type, so that SetRotation can be used in
interfaces.
* Add Rotation() method to these displays, so that the current
rotation can be read.
* Change SetRotation() so that it can return an error (if the given
rotation isn't supported).
The API looks like this and is based on the PCA9685 PWM chip:
Sleep(sleepEnabled bool) error
It will set the LCD panel to a low power state (not displaying any
image) but memory contents will be preserved.
Heap allocations can result in significant and unpredictable slowdowns.
For example, they can take over 10ms on the Gopher Badge, which results
in visible tearing (when tearing is otherwise avoided).
Some displays need other values than the default to look right.
Therefore, add a configuration option to set the gamma table for a
particular LCD panel.
This is needed for high performance graphics.
Using this API, and using partial updates to the screen (no full screen
refreshes), I've been able to get well over 60fps of updates.
The current code interprets the 'century' flag as the year 2100. However the
DS3231 hardware does not incorporate this flag in its leap year calculation, so
will incorrectly consider the year 2100 as a leap year and increment from
2100-02-28 to 2100-02-29 instead of the correct 2100-03-01.
The 'century' bit is not useful for anything as far as I can tell. But instead
of removing the code that uses the 'century' bit, I thought it would be less
intrusive to just document the current behavior.
I also verified my interpretation of the DS3231 datasheet and my implementation
of this formula by placing a DS3231 chip in the freezer section of my
refrigerator for an hour or two, then reading the temperature. I got -16C,
which is close enough to the -18C that the freezer was set to.
- Remove all default loraconf default initialisation in lorawan examples (Region Settings takes care of this now)
- Remove retries while receiving JoinAccept and increase LoraRX to 10s (no need to wait more than 10s)
- Add constants for RegionSetting default frequencies
- Standardize all lora default configurations in lora examples
- Add new AT+LW=NET,(ON|OFF) command in atcmd example
Ayke van Laethem
Daniel Esteban
Pablo Canseco
Daniel Esteban
Neil Davis
Brian Park
Olivier Fauchon
deadprogram
Olivier Fauchon
Vincent Janelle