Grid companies in Sweden has increased the number of decimals on energy (kWh), here is how to update your device.
| Shipping to Norway: | Order date or next working day |
| Shipping outside Norway: | At minimum once per week |
  | NEW 29th August -24: Danish and Swedish customers can now order directly from this webshop. We are enrolled in the EU IOSS system, and authorized to charge VAT. The EU IOSS system provides simplified customs and VAT process for B2C (Business to Customer) sales with order values up to 150 EUR ex VAT: - For consumers, VAT will be charged when ordering, no customs fee will be charged on import. - For businesses, VAT will not be charged when ordering. PostNord will charge VAT + customs fee on import. | |
 | Asiakkaat Suomessa voivat tilata Pow-P1 paikallisen jakelijamme verkkokaupasta Nurkan takaa (click here to redirect). | |
 | Ålänningar har två alternativ: - Förbeställa Pow-K från Nurkan takaa i Finland (klicka här), vilket ger lägsta fraktkostnad (skickas från Finland). - Beställa från Lectrons.com, vilket tills vidare ger den snabbaste leveransen. | |
| Customers from other countries: We invite you to order from our store on Lectronz.com Customs fees / VAT: Customers in EU countries will be handled as described above for Denmark and Sweden. | Click the button:  |
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Pow-U and power saving
We wanted to avoid the hassle of an external power supply, which is why the Pow-U is designed to run from the power that can be tapped from the HAN-signal line. To achieve this with an ESP32 microcontroller module, special measures are taken both in hardware and firmware.
But the Wifi environment where the unit is connected sometimes creates additional challenges - which is why an adjustment of the firmware power saving mode is implemented in the firmware, starting from v2.1.12.
In menu Configuration -> Wifi you will find:
Recommended setting:
- Pow-P1: Off
- Pow-K+: Minimum
- Pow-U: This is the tricky one!
Try first with "Minimum". If the device looses voltage, provoking regular reboots: Change it to "Maximum".
The disadvantage with running on "Maximum" is that the user interface will tend to be a bit less responsive. Transmission to MQTT will probably not be impacted, only user interface responsiveness.
Note:
The Power saving function does not work on ESP8266, so will have no effect on old Pow-U units with ESP8266 micro controller.
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