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241 posts

Master Geek
+1 received by user: 18

  Reply # 1535681 19-Apr-2016 15:20
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I have a few of these ( - their shop link just takes you direct to Aliexpress. They are a very small size and have some cool little shields which makes life easy for prototyping. And also got a few of these ( which are pretty impressive for the price - case included! 


I have Homie running on both and they seem very reliable/solid so far (early days admittedly).



Thanks for the links, I was just about to ask the same question.

330 posts

Ultimate Geek
+1 received by user: 73

  Reply # 1545517 2-May-2016 18:16
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Slight improvement on the code, as I use Amazon Echo (Alexa) to open or shut the garage door - if I tell her to open it when its already open she shuts it and visa versa.  


For brevity, this just makes sure if I say "Alexa, shut the garage door" and its already shut, she won't open it and if I say "Alexa, open the garage door" and its already open, she won't close it.




Change line in Arduino code where it says if ( msgString == "ACTIVATE" ) { to this:


if ( (msgString == "ACTIVATE" && doorState != DOOROPEN) || (msgString == "DEACTIVATE" && doorState != DOORCLOSED) )  {




Change Openhab sitemap file to this:


Frame label="Garage Door" {
   Text item=doorStatus
   Switch item=doorButton mappings=[ON="Open", OFF="Close"]




Change OpenHAB items file to this:


/* Doors */
Number doorStatus "Door Status [MAP(]" <garagedoor> (gGarage) { mqtt="<[mqttbroker:openhab/garage/doorstatus:state:default]" }
Switch doorButton "Garage Door" <garage> (gGarage) { mqtt=">[mqttbroker:openhab/garage/doorswitch:command:ON:ACTIVATE],>[mqttbroker:openhab/garage/doorswitch:command:OFF:DEACTIVATE]" }

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