Firstly I thought I'd introduce my self and give my plans for the hydro system. I've just got an allotment but dont have time to daily water so I'm going to install a solar system and a router that will take a SIM card for connection to the internet to monitor it all.
Will I be able to use a mobile WiFi box over a router or will I not gain access to the interface as it doesn't port forward as far as I'm aware; if I could do it this way it's just saving me money as I already have a EE WiFi box and data sim.
My allotment is going to have raised beds I was thinking for the ease of everything having a RPi zero w at each raised bed and use my Pi3 as the main hotspot if I connect it this way will the Pi3 drag all the data from the RPi zeros connected to it? Also if it does is there a limit on how many it will drag data from ?
I will post pictures and do a video of my updates when the system is "fully installed"
thanks
As the system now supported MQTT, it may be configured according to your schema as follow:
1) connect the Raspberry to a USB 4G dongle using the USB port, this will give the access to the system remotely from internet.
2) let the Hydrosys4 set its wifi, which will be used to connect the remote MQTT devices for each of the bed.
3) use ESP8266 wifi modules to connect sensors and relays. It should also have an analog input so there should be the possibility to connect the Resistive/capacitive soil moisture sensors.