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home_automation:esp8266:nodemcu [2015/09/20 22:31] niziak |
home_automation:esp8266:nodemcu [2017/01/19 07:55] (current) niziak [Other Projects] |
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| file.close() | file.close() | ||
| </code> | </code> | ||
| - | This method is not comfortable, better is to use tool like [[http://esp8266.ru/esplorer/]] | + | This method is not comfortable, better is to use tool like [[http://esp8266.ru/esplorer/]] (source on [[https://github.com/4refr0nt/ESPlorer|github]]) |
| or [[https://github.com/GeoNomad/LuaLoader]] python script | or [[https://github.com/GeoNomad/LuaLoader]] python script | ||
| Line 18: | Line 18: | ||
| custom builds: http://frightanic.com/nodemcu-custom-build/ | custom builds: http://frightanic.com/nodemcu-custom-build/ | ||
| + | * https://github.com/nodemcu/nodemcu-firmware/wiki | ||
| + | * https://github.com/nodemcu/nodemcu-flasher | ||
| + | * https://github.com/nodemcu/nodemcu-firmware/releases | ||
| - | https://github.com/nodemcu/nodemcu-firmware/wiki | + | ====== Programming ====== |
| - | https://github.com/nodemcu/nodemcu-flasher | + | * Devel API (latest): [[https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en-%28dev096%29]] |
| - | https://github.com/nodemcu/nodemcu-firmware/releases | + | * GPIO MAP: [[https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en-%28dev096%29#new_gpio_map]] |
| + | * Current API: [[https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en]] | ||
| - | ===== Programming ===== | + | ===== Saving memory ===== |
| - | Devel API (latest): [[https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en-%28dev096%29]] | + | * 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. |
| - | Current API: [[https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en]] | + | * 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 ===== |
| <code lua> | <code lua> | ||
| function listap(t) | function listap(t) | ||
| Line 39: | Line 46: | ||
| </code> | </code> | ||
| | | ||
| - | ==== Connect to WiFi ==== | + | ===== Connect to WiFi ===== |
| <code lua> | <code lua> | ||
| wifi.setmode(wifi.STATION) | wifi.setmode(wifi.STATION) | ||
| Line 46: | Line 53: | ||
| </code> | </code> | ||
| - | ==== Scan 1 wire bus ==== | + | ===== Scan 1 wire bus ===== |
| <code lua> | <code lua> | ||
| ow.setup(1) | ow.setup(1) | ||
| - | print (ow.reset(1)) | + | print (ow.reset(1)) -- print 1 if device found |
| </code> | </code> | ||
| - | ===== Projects ===== | + | ===== Resolving DNS ===== |
| - | ==== 1-wire ==== | + | 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. |
| - | [[http://hacklab.fi/news/esp8266-ds18b20-thingspeak-nodemcu/]] | + | There is sth about easier API: [[https://github.com/nodemcu/nodemcu-firmware/issues/189]] |
| + | |||
| + | ===== Compile to byte code ===== | ||
| + | You can compile everytihn except init.lua. | ||
| + | <code:lua>node.compile("myprog.lua")</code> | ||
| + | Will produce myprog.lc. | ||
| + | |||
| + | ====== Other Projects ====== | ||
| + | * 1-wire temp sensor reporting to [[http://thingspeak.com]], [[http://hacklab.fi/news/esp8266-ds18b20-thingspeak-nodemcu/]] | ||
| + | * 1-wire temp sensor reporting to [[http://nettemp.pl]], [[http://techfreak.pl/bezprzewodowe-czujniki-na-esp8266-nettemp/]] | ||
| + | * [[http://techfreak.pl/bezprzewodowe-czujniki-temperatury-ds18b20-na-esp8266/]] | ||
| + | * 1-wire temp sensor [[https://blog.jokielowie.com/en/2015/10/domoticz-cz-2-termometr-wifi-z-precyzja-do-dwoch-miejsc-po-przecinku-czyli-esp8266-dla-poczatkujach-w-praktyce/]] | ||
| + | * 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 ===== | ||
| + | * Thingspeak: [[http://thingspeak.com/]] | ||
| + | * Telit: [[http://www.telit.com/products-and-services/iot-platforms/iot-portal]] | ||
| + | * Google: [[https://cloud.google.com/solutions/iot/]] | ||
| + | * IBM: [[https://internetofthings.ibmcloud.com/#/]] | ||
| + | |||
| + | todo | ||
| + | * https://www.google.com/search?q=ai+cloud+esp8266&ie=utf-8&oe=utf-8 | ||