IoT

https://www.openhab.org/docs/installation/openhabian.html#hardware

https://www.youtube.com/watch?v=08_GBROKQH0

https://templates.blakadder.com/sensors.html

NodeMCU PyFlasher

https://github.com/marcelstoer/nodemcu-pyflasher

https://tasmota.github.io/docs/openHAB/

https://www.amazon.com/HiLetgo-FT232RL-Converter-Adapter-Breakout/dp/B00IJXZQ7C/ref=as_li_ss_tl?crid=3RAJU4GJOA59A&keywords=ftdi+usb+to+serial&qid=1566960505&s=gateway&sprefix=ftdi+us,aps,156&sr=8-4&linkCode=sl1&tag=thehookup00-20&linkId=b7087ade6b49695f2b691337d8608086&language=en_US

RTC Setup

* worked on RPI Zero: https://www.instructables.com/Raspberry-Pi-DS3231/

https://maker.pro/raspberry-pi/tutorial/how-to-add-an-rtc-module-to-raspberry-pi

https://learn.adafruit.com/adding-a-real-time-clock-to-raspberry-pi/set-rtc-time

Tesmota relay

* power on - PowerOnState - https://tasmota.github.io/docs/PowerOnState/

# https://tasmota.github.io/docs/Commands/ - 1 = disable
SetOption63 1 

# Always on
PowerOnState 1