Update: Android application to control my ESP devices around the home

I've updated the Homy application that controls my ESP8266 based devices around the house.

So more Smart Plugs has been added, more irrigation controllers (for testing),  temperature and humidity sensors.

At the begging each node is starting as AP with it own embedded web server. I can connect to it
with a browser to it and setup the WiFi network and password ( I am planning to do this also from Homy application). After that node gets rebooted and became part of the network.

At statup Homy connects to the cloud broker ( which is connected to my local one) and request an
update from all devices. In this way knows how many of them are and what types they are, what cron settings thay have and what IP, software version they have etc.



Next to do on devices is OTA.
Next device to build is a chrono thermostat device. It will be able to control a heater based on its predefined cron program and aggregated temperature from sensors. Off course  I will be able to control it from the Homy application around the world.

New progress today - ESP8266 has UNIX CRON functionality

I've added a cron functionality to my ESP8266 and is working great.
Now I can send a JSON string with unix like cron command:

{"device_name":"ESP9191919", "type":"my_isp_type", "minute":"22" , "hour":"10", "day_of_month":"26", "month":"7", "day_of_week":"3", "gpio":"14","duration":"20", "skip":"0","status":"1", "action":"add" }

to setup a cron job on a specific GPIO. I need it for my irrigation system that was using a CRON on  a raspberry PI to receive the commands for valves.

My CRON implementation support now the "*" functionality for minute, hour, day_of_month, month and day_of_week. In this version is not supporting the "*/10" functionality but if I will need it I will do it.

So sending once the JSON :

{"device_name":"ESP9191919", "type":"my_isp_type", "minute":"00" , "hour":"22", "day_of_month":"*", "month":"*", "day_of_week":"*", "gpio":"14","duration":"20", "skip":"0","status":"1", "action":"add" }

will start the valve connected to gpio 14 every day at 22:00 for 20 minutes.

If I want to skip this cron 2 days, I need to send the same JSON but with skip value of 2.

Skip value get automatically decremented and when it has the value of 0 the cron will do the job. I've need it this functionality, because finally the ESP will be an autonomous system, getting the data from Internet and from my yard, and will be able to propose me an watering plan ( in first stage to be able to test it) and finally to be able to take decisions by itself.
This is what IoT means. 

If I want to disable this cron job, I need to set the status to "0" so it will be ignored every time.


I could have also added the year as a parameter (have it but not used), but I didn't find any utility for that. But is an easy job to do it.


The important thing is that the cron data is written in the flash so a power down is not affecting the cron functionality.

Writing to flash was minimized so only if is necessary a flash update will be done. 

I've used sector 2 for storing the cron data so I can have like 400 cron jobs for now, which is enough for now. I guess I can squeeze another 1000 records in the other sectors, but for now 400 are enough.

TODO list:


Export data as JSON:

•   {"cron_data":{"minute":"2","hour":"16",......},{"minute":"15","hour":"9",......},   {"minute":"44","hour":"12",......}, {"minute":"20","hour":"8",......}}    DONE !!!
• */5 functionality 
• continuity for cron jobs - if there is a power down during a cron job, continue from where it left.