Default main app selector

See merge request card10/firmware!375

I need unit tests :/

This allows to read and write strings to the config file.

Allows to set the string value of a key. Perists the value to the
configuration file.

Introduces a small state machine which parses the file character by
character. This eases the logic around parsing whole lines
significantly.

Now also trims lines, handling all non printable characters correctly.

max86150 pycardium api

See merge request card10/firmware!359

See merge request card10/firmware!376

Stable max86150 epicardium API

See merge request card10/firmware!371

Jakob authored 5 years ago and Arist committed 5 years ago

Epicardium API for max86150 aligned with latest state of sensor
development on card10.

Co-Authored-by: Arist <aristkojevnikov@gmail.com>

Jakob authored 5 years ago and Arist committed 5 years ago

Get samples from FIFO by small junks due to a recommendation from Maxim
not to read the entire FIFO, but rather a fixed number of samples.
See https://os.mbed.com/users/laserdad/code/MAX86150_ECG_PPG//file/3c728f3d1f10/main.cpp/



Additional tuning for particular configuration of max86150 in card10.

Co-Authored-by: Arist <aristkojevnikov@gmail.com>

fix(interrupts): Add the callbacks to the list of root pointers

See merge request card10/firmware!374

fix(ble): write new mac if files does not exist

See merge request card10/firmware!373

Fix LED mutex stuff

See merge request card10/firmware!369

leds_update_power() internally accesses the I2C bus so calls to this
function need to be inside an I2C lock section.

Signed-off-by: Rahix <rahix@rahix.de>

Signed-off-by: Rahix <rahix@rahix.de>

Signed-off-by: Rahix <rahix@rahix.de>