Go-eCharger Binding

This Binding controls and reads data from the Go-eCharger. It is a mobile wallbox for charging EVs and has an open REST API for reading data and configuration.

Supported Things

This binding supports Go-eCharger HOME+ with 7.4kW or 22kW.

Thing Configuration

The thing has two configuration parameters:

Parameter Description Required
ip The IP-address of your Go-eCharger yes
refreshInterval Interval to read data, default 5 (in seconds) no

Channels

Currently available channels are

Channel ID Item Type Description
maxCurrent Number:ElectricCurrent Maximum current allowed to use for charging
pwmSignal String Signal status for PWM signal
error String Error code of charger
voltageL1 Number:ElectricPotential Voltage on L1
voltageL2 Number:ElectricPotential Voltage on L2
voltageL3 Number:ElectricPotential Voltage on L3
currentL1 Number:ElectricCurrent Current on L1
currentL2 Number:ElectricCurrent Current on L2
currentL3 Number:ElectricCurrent Current on L3
powerL1 Number:Power Power on L1
powerL2 Number:Power Power on L2
powerL3 Number:Power Power on L2
phases Number Amount of phases currently used for charging
sessionChargeEnergyLimit Number:Energy Wallbox stops charging after defined value, disable with 0
sessionChargedEnergy Number:Energy Amount of energy that has been charged in this session
totalChargedEnergy Number:Energy Amount of energy that has been charged since installation
allowCharging Switch If ON charging is allowed
cableCurrent Number:ElectricCurrent Specifies the max current that can be charged with that cable
temperature Number:Temperature Temperature of the Go-eCharger
firmware String Firmware Version
accessConfiguration String Access configuration, for example OPEN, RFID ...

Full Example

demo.things

Thing goecharger:goe:garage [ip="192.168.1.36",refreshInterval=5]

demo.items

Number:ElectricCurrent     GoEChargerMaxCurrent                 "Maximum current"                       {channel="goecharger:goe:garage:maxCurrent"}
String                     GoEChargerPwmSignal                  "Pwm signal status"                     {channel="goecharger:goe:garage:pwmSignal"}
String                     GoEChargerError                      "Error code"                            {channel="goecharger:goe:garage:error"}
Number:ElectricPotential   GoEChargerVoltageL1                  "Voltage l1"                            {channel="goecharger:goe:garage:voltageL1"}
Number:ElectricPotential   GoEChargerVoltageL2                  "Voltage l2"                            {channel="goecharger:goe:garage:voltageL2"}
Number:ElectricPotential   GoEChargerVoltageL3                  "Voltage l3"                            {channel="goecharger:goe:garage:voltageL3"}
Number:ElectricCurrent     GoEChargerCurrentL1                  "Current l1"                            {channel="goecharger:goe:garage:currentL1"}
Number:ElectricCurrent     GoEChargerCurrentL2                  "Current l2"                            {channel="goecharger:goe:garage:currentL2"}
Number:ElectricCurrent     GoEChargerCurrentL3                  "Current l3"                            {channel="goecharger:goe:garage:currentL3"}
Number:Power               GoEChargerPowerL1                    "Power l1"                              {channel="goecharger:goe:garage:powerL1"}
Number:Power               GoEChargerPowerL2                    "Power l2"                              {channel="goecharger:goe:garage:powerL2"}
Number:Power               GoEChargerPowerL3                    "Power l3"                              {channel="goecharger:goe:garage:powerL3"}
Number                     GoEChargerPhases                     "Phases"                                {channel="goecharger:goe:garage:phases"}
Number:Energy              GoEChargerSessionChargeEnergyLimit   "Current session charge energy limit"   {channel="goecharger:goe:garage:sessionChargeEnergyLimit"}
Number:Energy              GoEChargerSessionChargedEnergy       "Current session charged energy"        {channel="goecharger:goe:garage:sessionChargedEnergy"}
Number:Energy              GoEChargerTotalChargedEnergy         "Total charged energy"                  {channel="goecharger:goe:garage:totalChargedEnergy"}
Switch                     GoEChargerAllowCharging              "Allow charging"                        {channel="goecharger:goe:garage:allowCharging"}
Number:ElectricCurrent     GoEChargerCableCurrent               "Cable encoding"                        {channel="goecharger:goe:garage:cableCurrent"}
Number:Temperature         GoEChargerTemperature                "Temperature"                           {channel="goecharger:goe:garage:temperature"}
String                     GoEChargerFirmware                   "Firmware"                              {channel="goecharger:goe:garage:firmware"}
String                     GoEChargerAccessConfiguration        "Access configuration"                  {channel="goecharger:goe:garage:accessConfiguration"}

Setting charge current of Go-eCharger based on photovoltaik output

You can easily define rules to charge with PV power alone. Here is a simple sample how such a rule could look like:

rule "Set max amps for PV charging"
when
    Item availablePVCurrent received update
then
    logInfo("Amps available: ", receivedCommand.state)
    MaxAmpere.sendCommand(receivedCommand.state)
end

You can also define more advanced rules if you have multiple cars that charge with a different amount of phases. For example if your car charges on one phase only, you can set maxAmps to output of PV power, if your car charges on two phases you can set maxAmps to pv output / 2, and for 3 phases pv output / 3. In general the calculation would be ´maxAmps = pvOutput / phases`.