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Improved Start/Stop Functionality via LCD Screen

  • Pressing the "O" button for longer than 2 seconds will open the Menu screen.
  • Pressing the "<" button for less than 2 seconds will toggle between Smart and Solar modes.
  • Pressing the "<" button for longer than 2 seconds will deny access, setting the mode to "Off" and stopping charging.
  • Pressing the ">" button for longer than 2 seconds will grant access, activating the previously set mode and resuming charging.

Simultaneously pressing both "<" and ">" buttons will refresh the LCD screen.

Webserver Features

Once your Wi-Fi parameters are configured, your SmartEVSE will be accessible on your local network through a built-in webserver. Access the webserver via:

  • http://<ip-address>/
  • http://smartevse-xxxx.local/ where xxxx is the serial number of your SmartEVSE (found on a sticker at the bottom). Ensure mDNS is configured on your LAN.
  • http://smartevse-xxxx.lan/ where xxxx is the serial number of your SmartEVSE. mDNS may need to be configured for this.

Firmware Updates (OTA)

  • Navigate to http://<your-smartevse>/update or press the "UPDATE" button on the webserver.
  • Upload the firmware.bin file from this archive, or use firmware.debug.bin renamed to firmware.bin for a debug version (accessible via Telnet). Ensure the file name is correct; otherwise, flashing will fail.
  • In case of failure (FAIL), check your Wi-Fi connection and retry.
  • After a successful update (OK), wait 10-30 seconds for the firmware, including the webserver, to go online.

Wi-Fi Debugging

  • If the debug version is flashed, you can access the debugger via Telnet at http://<your-smartevse>/ to monitor system activity.

RFID List Uploads (OTA)

  • Upload RFID lists via the "update" button or the /update endpoint by submitting a file named rfid.txt.
  • Each line should contain one RFID (NFC) tag UID in hex format (size bytes): 
    112233445566
0A3B123FFFA0
  • All existing RFID tags are deleted upon upload.
  • If Power Share (Master/Slave configuration) is enabled, upload the list to each SmartEVSE device individually to maintain separate lists for each.

Power Share Mode Switching

  • When switching the mode on the Master device, the Slaves will automatically switch modes accordingly.
  • If you change the mode on a Slave and the Master is not configured with a Smart/Solar toggle switch, the Master and all other Slaves will follow the mode change.
  • If a Smart/Solar toggle switch is present, ensure that the Master and all Slaves are set to the same mode. We recommend replacing the toggle switch with a pushbutton switch for ease of use.

Error Messages

If an error occurs, SmartEVSE will stop charging and display one of the following error messages:

  • ERROR: NO SERIAL COM – No signal has been received from the Sensorbox or another SmartEVSE (used for load balancing) for 11 seconds. Please check the wiring.
  • ERROR: NO CURRENT – Insufficient current is available to start or maintain charging. The system will retry in 60 seconds.
  • ERROR: HIGH TEMP – The internal temperature has reached 65°C, stopping charging. Charging will resume once the temperature drops below 55°C.
  • RESIDUAL FAULT CURRENT DETECTED – A DC Residual Current Monitor has detected a fault, and the Contactor has been switched off. Press any button to reset the error.

Firmware Enhancements

  • New endpoints for sending L1/2/3 data, removing the need for a SensorBox.
    • Note: Set MainsMeter to the 'API' option in the config menu when sending L1/2/3 data.
  • New endpoints for sending EvMeter L1/2/3 data (including energy/power).
    • Note: Set EvMeter to the 'API' option in the config menu when sending L1/2/3 data.
  • Callable API endpoints for integration with third-party systems (e.g., REST API and Home Assistant). These allow you to:
    • Change the charging mode.
    • Override the charge current.
    • Pass current measurements (e.g., p1, battery) without additional hardware.
    • Switch between single- and three-phase power (requires an extra 2P relay on the C2 connector).

Simple Timer for Delayed Charging

A simple timer for delayed charging is available via the webserver.

  • Upon refreshing the webpage, the "StartTime" field (next to the mode buttons) will display the current system time.
  • If you press any mode button, charging will start immediately.
  • If you set a future "StartTime," a "StopTime" field will appear. If you leave "StopTime" at the default, it will be ignored. Pressing Normal, Solar, or Smart mode will:
    • Register the StartTime.
    • Switch the mode to "Off."
    • Start the charging session at the designated StartTime, either in Normal or Smart mode.
    • Continue the charging session indefinitely.
  • Entering a "StopTime" will enable a "Daily" checkbox, allowing the StartTime/StopTime combination to repeat daily starting from the selected date.
  • To clear StartTime, StopTime, and Repeat, refresh the webpage and select Normal, Solar, or Smart mode.

Known Bugs

  • If the NTP time is not yet synchronized (e.g., after a reboot), results may be unpredictable. Wait until the system time settles.
  • If the StopTime is set more than 24 hours after the StartTime, results are untested. Ensure that values make sense.

EU Capacity Rate Limiting

A European Union directive allows electricity providers to charge consumers based on a "capacity rate," encouraging users to balance their energy consumption more evenly and reduce peak usage.

For more information, visit this link.

  • A new menu option, "SumMains," has been added with a default setting of 600A.
  • This setting applies in Smart or Solar mode only.
  • In addition to other limits (Mains, MaxCircuit), the charging current will be restricted to ensure that the total current across all phases does not exceed the SumMains setting.
  • If you are unsure how to configure this, it is recommended to leave the setting at its default value.

Locking the keys below the LCD screen

The keys below the LCD screen can be locked/unlocked:

  • By pressing middle and right key at boot, or
  • By checking/unchecking the LCDLock box in the webserver screen.