Support for EON Landis+Gyr Modell: E360

[mfrejman]

Hi I have a
Landis+Gyr
Modell: E360
And try to get it to work, but no luck :-(
My meter is not recognized in the web gui configuration
any tips how to solve the issue

I'm using ESP8266 Wemos D1 mini
HW connection setup with power from the meter
from: https://github.com/UdoK/esp8266_p1meter_sv

link to EON meter
https://www.eon.se/content/dam/eon-se/swe-documents/swe-manual-trefasmatare-f3-100_1.pdf

Best regards

[ArnieO]

1. There is an FTDI chip on the Wemos that uses the Rx input, so I don't think you can use that input. And I don't think you'll be able to use one of the other GPIOs at the required serial speed 115 200 baud.
   You could try a Wemos with ESP32S2, and use an ordinary GPIO. On that chip, serial can be swapped to any GPIO.
2. On some meters you need to reduce the pullup resistor to around 3k when you pull to 3,3V to get a reliable signal.

[mfrejman]

HAN port is enabled, for EON you can enable the port on the web or in the App.

[mfrejman]

Just connected to usb and upgraded to new firmware
ESP low even connected to usb power

I will try and flash another wmos D1 mini and see if that solve the issue.
take care

[ArnieO]

Yes, the low voltage is an indication something is wrong. Does it correspond to voltage measured on the ESP?
You might need to reconfigure after the update. Add "/vendor" to the URL. Select "Generic ESP8266" and the right GPIO for HAN - then press Save. This will give you a "Hardware" section on the config page that shows GPIO settings etc, like the ones you had on System/GPIO on firmware v2.1.x:

If measured voltage is OK, it could be that the ADC is badly calibrated on your device - in which case you should adjust the "Multiplier" field in Config/Hardware. (Espressif ESP32 modules are easier, they come flashed with calibration data - so no user calibration of ADC is needed.)

And please run a Telnet debug as suggested by @gskjold : https://amsleser.no/blog/post/24-telnet-debug)

[gskjold]

D1 mini need 1.1 on multiplier. More on that here: https://github.com/UtilitechAS/amsreader-firmware/wiki/FAQ

[mfrejman]

changed to D1 mini and now the ESP is green