Nitrogen/Phosphorus/kalium/Humidity/Temperature and PH Sensors

[subas]

if must use 4G, suggest use KC868-A8S, let sensor connnect to A8S by RS485, it have 4G module, can send sensor data to your own cloud server. next week when we have free time, maybe we can write a sample arduino code and take a video tour for it.

Dear Admin.

Thank you for the technical advice. 

If possible, each LoRa node user with Rs485 bus. 
This will connect to a LoRaWan Gateway at the office. 

We can save money/cost using LoRa Gateway instead of 4G at each node. For farmers paying data for 4G to expensive. 

We need to make a video best to do:

1. Code for LoRa Node read sensors using RS485 and send data to LoRaWan Gateway.
2. LoRaWAN Gateway connects to the internet in the office and sends all Node Sensor data to any IoT Cloud Server.
3. How to create Graph and Sensor parameters to display the data in the IoT Cloud Server.

Item No 1 above the circuit board must be small so easy to install at the field.