* Auto-generate devices listing

* change namespace, do not throw NRE when outside of repo

* handle root directory correctly

* Update SysFs naming

* Trying to trick file names

* Added the file names back

* add support for spi data flow and chip select active state on linux

* add description for data flow values

* apply feedback

This change updates the following dependencies
- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19161.14

Fix Bmx280 link

* Expose Raspberry register addresses

This is need for the perf critical scenarios

* address feedback

* Mark the properties as not Virtual to ensure inlining

* Update dependencies from https://github.com/dotnet/arcade build 20190308.5

This change updates the following dependencies
- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19158.5

* Update dependencies from https://github.com/dotnet/arcade build 20190309.2

This change updates the following dependencies
- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19159.2

* Update dependencies from https://github.com/dotnet/arcade build 20190310.1

This change updates the following dependencies
- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19160.1

* Update SDK to latest preview3 to get latest compilers

* Fix packaging error with new compilers

* Use the new unified package from roslyn

* Import Compilers.props in devices props

* Keep using PackageLicenseUrl given we're still using 2.1 sdk where it is no deprecated yet.

* PR Feedback

* Updated various lines endings

* Added new command

* Random code cleans

* Factor LCD interaction

Add a layer to allow abstracting the difference between using direct pins or built-in I2C support for lcd driver chips that support it.

Factoring set up to facilitate adding read functionality.

Clarify I2c behavior/flags and add multi-byte send overloads. Improves sample perf test from 2048ms to 660ms.

Factor setup code to include only appropriate steps for each interface.

* Address feedback

* Added Buzzer class and MelodyPlayer sample class

* Minor changes to playing durations

* Added alphabet song to sampels

* Almost wrote a readme

* Refactoring to samples

* Added samples readme

* Added wiring schema

* Added device to devices list in a readme

* Removed unnecessarry section from readme

* Fixed readmes

* Minor refactorings

* Added new constructor to Buzzer

* Renamed PlayTone method in Buzzer

* Little fixes

* Units - example on temperature

* Address feedback and update remaining temperature related projects

* fix build after merge conflict

* Update README.md

* Add degrees sign everywhere

This change updates the following dependencies
- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19154.14

* Updated type for PinValues and related description

* Updated based on feedback

* Adding support for BME280

* removed extra space

* Adjusting based on PR comments

* Add folder images

Add bmp files

* Add references

Add SixLabors references 
Fix ProjectReference , add  $(MSBuildThisFileDirectory)

* Add samples

Added DisplayImages
Added DisplayImage
Added DisplayClock

* Remove empty line

This change updates the following dependencies
- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19151.5

Updated parameter name for PinNumberingScheme

This fixes the issue with the Arcade auto-update PR: https://github.com/dotnet/iot/pull/280

Currently we have two copies of Mcp3008.sample.csproj differing by casing:
- Mcp3008.sample.csproj
- Mcp3008.Sample.csproj

this has probably happened during some rename.

* Support for reading CPU temperature on Raspberry Pi.

* renamed from RPi specific . Removed rounding

* update to README

* Added IsAvailable property

* cached implementation of IsAvailable

* Fixup braces

* Fix readme

* Fixes.

* Merge

* Fix merge issues

* Small fix

* Fixed comments.

* Fixed screenshot.

* Fixed screenshot.

* Fixed statuses.

* Updated timer

* Fixed comments

* Small fix

* fixed ADS1115 README

* fixed ADXL345 README

* fixed DS3231

1. README
2. I2cAddress -> DefaultI2cAddress

* fixed HC-SR04

1. Sonar -> Hcsr04
2. README

* fixed HC-SR501 README

* fixed HMC5883L

1. I2cAddress -> DefaultI2cAddress
2. README

* fixed LM75 README

* fixed MAX44009 README

* fixed nRF and SHT3x README

* update Si7021 binding

1. use property
2. add Heater, Revision, Resolution
3. add README

* Update Si7021.cs

* fixed feedback notes

* Adding support for BNO055

* fixed .NET Core version

* Fixes to follow PR feedbacks

* Fixed typo, added link to docuementation in source code

* Dispose CancellationTokenSource

* Await task

Otherwise the tokenSource may get disposed prematurely

* Updated parameter name and summary

* Updated naming for pairs

* Added package back now that IGpioController is public

* Few code cleans

* Missed a few packages to add back

* Updated project path

* Removed packages and updated for ReadOnlySpan

* Removed unused assignments

* Added core package back

* Changed a couple readonly

* Made csproj similar to another test project

Conventions: generalize sentence about using '-1' and 'int' instead of 'null' and 'int?'

Previously sentence was only for pin numbers but just noted that it actually also applies to things like time period and possibly other things

* added PCA9685

* Update Pca9685.Sample.cs

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Fixed problems

* private I2cDevice, Register comments, stackalloc byte, I2C address

* Fixed comment

* Change back

* Change back

* delete extra enters and commas

* Conventions for devices

* Update Devices-conventions.md

* Update Devices-conventions.md

* Update Devices-conventions.md

* Fix casing

Fixed the change to EventTypes.