Some users experience difficulties using one of the Over-the-air (OTA) methods for firmware upgrade. We propose a...
We currently ship minimum once per week.
Non-Norwegian customers are invited to order from our store on Lectronz.com, a third party sales platform that handles national VAT to EU countries, using the EU IOSS system (for order values up to 150 EUR ex VAT).
Click the button: 
Latest posts
-
Updating device over USB cable, simplified methodRead more -
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?
-
Correcting stored values by editing the configuration fileRead moreHow to correct corrupted values in the graphs
-
I have a Kaifa/Nuri meter, and my new Pow-U does not work!?Read moreOK... so we made a (minor) bummer on the latest design update of Pow-U. The fix is maybe not elegant, but it is easy!
-
"I ordered a device on Lectronz, and paid VAT. But now I received a customs + VAT claim!?"Read moreSome of our EU customers that buy on Lectronz receive customs claims. Here is why - and what to do....
-
Pow-U and power savingRead moreIt took some efforts both in hardware and firmware to make an ESP32 run from HAN-port power only - and here are the...
Blog categories
Search in blog
Will there be an update of Pow-U with ESP32?
During the design of Pow-U, one of the major challenges was to power it from the M-bus line on the HAN-port. In this way, Pow-U does not need a separate power supply.
We would love to use ESP32 also on Pow-U, but for the time being all versions of ESP32 consume too much power to make this possible. During S1/2022 we upgraded the Pow-K to use and ESP32-S2 module. However, also the S2 consumes too much power to be used on Pow-U.
We'll keep an eye on new products from Espressif, and as soon as a suitable and compatible module hits the market we'll start working on it!
But for the time being, the answer is sadly: No.
Update 5th September 2022
We have great news!
We finally found the solution, and have now redesigned the Pow-U around an ESP32-S2-MINI module. We have ordered a first production batch, and we expect to start shipping the new Pow-U around 1st October -22.
Posted in:
FAQ
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 -
My Pow-K is not working, what is wrong?
The most common mistake when starting up a Pow-K has an easy fix!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