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esp8266:nodemcu [2015/09/22 16:26] – niziakhome_automation:esp8266:nodemcu [2016/12/29 20:35] – niziak
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   * Current API: [[https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en]]   * Current API: [[https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en]]
 +
 +===== Saving memory =====
 +  * Avoid upvalues for context passed between event callbacks, as its very difficulat to get a handle on memory leaks created by these. Only use globals for this usecase.
 +  * Nil globals once they are no longer needed so that they can be properly GCed.
 +  * Allocate resources and create closures on a just-in-time basis.
 +  * The cost of require or dofile is relatively small, so break your program into overlays one per event and use a small stub function as a callback to load each.
 +    * Use compiled .lc files and load using dofile().
  
 ===== Scan WiFi ===== ===== Scan WiFi =====
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 print (ow.reset(1)) -- print 1 if device found print (ow.reset(1)) -- print 1 if device found
 </code> </code>
 +
 +===== Resolving DNS =====
 +It is not so easy. It need socket instance which will be used only for one DNS request, then socket will be destroyed. Response is performed by callback.
 +There is sth about easier API: [[https://github.com/nodemcu/nodemcu-firmware/issues/189]]
  
 ===== Compile to byte code ===== ===== Compile to byte code =====
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   * [[http://techfreak.pl/bezprzewodowe-czujniki-temperatury-ds18b20-na-esp8266/]]   * [[http://techfreak.pl/bezprzewodowe-czujniki-temperatury-ds18b20-na-esp8266/]]
   * Control 2 GPIO from Web [[http://randomnerdtutorials.com/esp8266-web-server/]]   * Control 2 GPIO from Web [[http://randomnerdtutorials.com/esp8266-web-server/]]
-  * +  * Http server [[https://github.com/marcoskirsch/nodemcu-httpserver]] 
 +  * Remote update [[http://www.instructables.com/id/ESP8266-WiFi-File-Management/]] [[https://github.com/breagan/ESP8266_WiFi_File_Manager]]
  
-==== Free Cloud/Server services ====+===== Free Cloud/Server services =====
   * Thingspeak: [[http://thingspeak.com/]]   * Thingspeak: [[http://thingspeak.com/]]
   * Telit: [[http://www.telit.com/products-and-services/iot-platforms/iot-portal]]   * Telit: [[http://www.telit.com/products-and-services/iot-platforms/iot-portal]]
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 todo todo
   * https://www.google.com/search?q=ai+cloud+esp8266&ie=utf-8&oe=utf-8   * https://www.google.com/search?q=ai+cloud+esp8266&ie=utf-8&oe=utf-8
 +