Extract from mruby-esp32/mruby-esp32 repository

Author: pandax381

README.md

@@ -0,0 +1,50 @@
+mruby-esp32-system
+============
+
+System library for mruby-esp32.
+
+## Installation
+Add the line below to your `build_config.rb`:
+
+```ruby
+  conf.gem :github => 'mruby-esp32/mruby-esp32-system'
+```
+
+## Example
+```ruby
+ver = ESP32::System.sdk_version
+puts "SDK Version: #{ver}"
+
+mem = ESP32::System.available_memory / 1000
+puts "Memory free: #{mem}K"
+
+puts "Delaying 10 seconds"
+ESP32::System.delay(10 * 1000)
+
+#ESP32::System.restart()
+
+puts "Deep sleeping for 10 seconds"
+ESP32::System.deep_sleep_for(10 * 1000000)
+```
+
+## License
+
+Copyright (c) 2016 Carson McDonald
+
+Permission is hereby granted, free of charge, to any person obtaining a 
+copy of this software and associated documentation files (the "Software"), 
+to deal in the Software without restriction, including without limitation 
+the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the 
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in 
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
+DEALINGS IN THE SOFTWARE.