Yes, mine was always hooked up via UTP. No GPRS reception at the location where my charge point is.
I have the current rest sensors:
- platform: rest
name: newmotion_current
unique_id: newmotion_current
resource: http://IP:12800/user/status
json_attributes_path: "$.['connectors'].[0].['transaction']"
json_attributes:
- consumed
- start
- status
value_template: "{{ value_json['connectors'][0]['transaction']['consumed'] | int / 1000 }}"
state_class: "total_increasing"
device_class: "energy"
unit_of_measurement: "kWh"
- platform: rest
name: newmotion_total
unique_id: newmotion_total
resource: http://IP:12800/user/transactions
value_template: "{{ value_json['value'][19]['meterStop'] | int / 1000 }}"
unit_of_measurement: "kWh"
state_class: "total_increasing"
device_class: "energy"
As to the P1-port: that is not for read-out purposes. It is for hooking the charge-point up to your Smart Meter so the chargepoint knows the max draw of your home. That is used for power balancing the max power delivered by the chargepoint. Needs to be activated by Newmotion in the back end.