📗 Logs and misc info along the way.

README.md

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+First prototype has a ESP8266[0][1] strapped on a soil moisture sensor [2]. The the small form factor, easily flash-able firware and gpio pins made the ESP8266 a great fit for the task. The main focus is the try transmit the soil moisture of a plant to an elasticsearch endpoint. Kibana is used to visialize the time since laste watered compared to the soil moisture.
+
+Using micropython to interface with the pins and it makes it easy to send json data to our elastic endpoint. 
+Guide on how to flash your esp8266 with micropython can be found here: . 
+
+Excecution path:
+ + boot.py - Start with setting up wifi
+ + main.py - Import logger. Call watercontent()
+ + watercontent.py
+   - Reads analog pin for sensor data
+   - logMoisture inputs this value and after getting the ntp time is, sets up a json payload and sends it to logger.
+ + elasticLog.py - inputs json payload and sends it to elastic endpoint using urequests.
+
+
+
+Measuring the power draw:
+ Log interval 10 seconds using sleep
+04.05.19
+19:47 - 0 mAh
+20:09 - 10 mAh
+01:34 - 133 mAh
+05.05.19
+ - 
+06.05.19
+22:30 - 556mAh
+
+ Log interval 30 seconds using deepsleep[3][4]
+22:30 - 0 mAh
+00:01 - 5 mAh
+07:36 - 30 mAh
+16:58 - 65 mAh
+
+
+TODO:
+ - Special characters ÆØÅ seem to not be supported.
+ - Wifi and elastic settings should be in a config
+ - [Research] Get a better understanding of how our code executes
+ - Add light and temperature sensors. Extend analog pins available with 4051 multiplexer.  
+
+
+
+Notes:
+	Deepsleep
+If the code execution takes 100ms right before entering deepsleep there will be no time to connect and upload any new files to the chip. Remember to either have a your program check if a known digital pin is set to high which can act as a cutoff of main program execution by placing a jumper between power* and the known pin. Another way to allow a way of still interfacing with the board is by using machine.Timer[5][6] to create a callback to main function, all while giving us a window to interface or stop execution, delayed by a set interval e.g. 3 seconds. 
+* Double check that this should not be to ground pin.
+
+	Wemos D1 ESP8266 Pin for deepsleep
+While most documentation says to connect RESET/RST to pin D8 (physical ping 16), this does not apply to this board. Instead us pin D0 (physical pin 4)!
+
+[0] WTF is ESP8266
+[1] Image of the chip
+[2] And image of soil stick
+[3] Deep sleep docs
+[4] Our implementation of deepsleep
+[5] docs
+[4] Our implementation of machine.Timer