Cookie preferences
We assume this is a bug on Aidon smart meters with HAN-NVE interface (Norway, Sweden and possibly Finland).
Latest posts
-
Assumed bug on Aidon meters with HAN-NVE interfaceRead more -
Kamstrup Omnipower in Sweden: 10x kWh errorRead moreGrid companies in Sweden has increased the number of decimals on energy (kWh), here is how to update your device.
-
Updating device over USB cable, simplified methodRead moreSome users experience difficulties using one of the Over-the-air (OTA) methods for firmware upgrade. We propose a...
-
Kamstrup Omnipower HAN port not workingRead moreHow to cure the Kamstrup Omnipower meter hick-up (meter stops pushing data)
-
Kamstrup Omnipower meters in Sweden: Which configuration should you choose?Read moreSwedish grid companies are moving from "HAN-NVE" configuration to "P1" configuration. Some grid companies allow their...
-
L2 current not available!?Read moreSome users have noticed that the device is no longer reporting current on phase L2.
-
Swedish customers and PostNord as "Tullombud"Read moreSwedish customers receiving our shipments via Postnord are mislead to think they have to pay customs fee and VAT....
-
One-click upgrade is not workingRead moreOne-click firmware upgrade works just fine for most users - but what to do if it fails?
-
-
I have a Kaifa/Nuri meter, and my new Pow-U does not work!?Read moreOK... so we made a (minor) bummer on a design update of Pow-U. The fix is maybe not elegant, but it is easy!
Blog categories
Search in blog
My new Pow device is not working - what is wrong!?
(Illustration borrowed from https://thefreebundle.com/featured/don-t-panic-rediscovering-douglas-adams-hitchhiker-s-guide-to-the-galaxy/)
So... you have received your new Pow-device, connected it to your Wifi, configured the meter (Configuration/Meter), the main page is open but... there is no data from the meter and a red HAN indicator (and maybe others).
Let me quote classic litterature: Don't panic!
Hardware configuration
The most usual problem is that you selected the wrong hardware profile during the configuration.
The firmware used in the Pow-devices is designed to be used on "any" design based on an ESP8266 or ESP32 module. However, those modules have a number of input/output pins, of which we only use a few.
To simplify the setup, a number of pre-defined hardware profiles are defined, which you can select during initial configuration:
The newer Pow-devices are one of the two first on this list:
- Pow-K+ with ESP32
- Pow-U with the data signal tied to microcontroller input GPIO12.
There is text on the board indicating which GPIO it uses.
If you by a mistake have selected the wrong profile, the simplest way to recover is to reconfigure by setting the device in access point mode: Press and hold AP button until LED blinks yellow, then connect to Wifi access point AMS2MQTT and open 192.168.4.1 in your browser.
However, there is an alternative way:
You can change the settings in System/GPIO.
On this page you should not touch the "Multiplier" setting, as this is a calibration done before delivery of the ADC that reads the device voltage.
Newer devices should have the following settings:
Pow-U
Pow-K+
Related posts
-
How do I fix a bricked device?
If you by a mistake uploaded over Wifi a wrong firmware (intended for an other microprocessor), the device will not...Read more -
Home Assistant med Pow-K
The Danish YouTube-channel Kenneths Teknik made an instructive video that shows how to connect a Pow-K to Home...Read more -
Can Pow-U and Pow-K show energy produced from solar panels or wind turbines?
Especially solar panel installations are starting to become common, so we want to monitor power and energy from them!Read more -
How can I read data from my Pow-K / Pow-U when I'm not at home?
Many of us do not like the idea of sending our power consumption data to some cloud service where we do not really...Read more -
Pow-U: Can the external power be connected while Pow-U is connected to the meter?
In some use situations, the Pow-U will have difficulties maintaining its voltage level and will reset frequently (see...Read more
Leave a comment