SlimmeLezer+

(47 customer reviews)

18,00 excl. vat

Case is sold separately, please select it as option
Comes with ESPHome pre-installed
Supported DSMR: 2/3/4/5
Powered via P1 port (parasitair, DSMR 5 only)
USB powered for older DSMR versions like 4, 3 or 2
RJ12 Cable included ~50cm

Doesn’t work on a mbus port
At this moment I’ve got 600 SlimmeLezer+’s which needs to be tested and flashed first. I’m placing 300 already in the shop, which already can be pre-ordered. Please note that I’m testing and flashing each model before packaging and shipping it. It can take up to a 1 ~ 1,5 week before your order will be shipped (depending on the amount of orders).

181 in stock

Case

If you want to order with case

Firmware * 

Please select what firmware you want

SKU: SL-PLUS Category:

SlimmeLezer+

SlimmeLezer integrates your energy meter with P1 port seamlessly into Home Assistant. Plug and play, no coding necessary. It comes pre-installed with ESPHome code. After joining it to your WiFi it will be recognized in Home Assistant and can be added easily.

The SlimmeLezer is designed to work with DSMR/ESMR 5. Working with DSMR 5 means that the Smart Meter can deliver enough power through the P1 port to power the reader. Therefore no extra power adapter is needed to work.

Older Smart Meters with DSMR version 4, 3 or 2 will work to, but will require extra power via the micro usb (not included).

Case for the SlimmeLezer


  • Case for SlimmeLezer+

    4,25 excl. vat

The SlimmeLezer comes without a case. The case can be ordered together with the SlimmeLezer.

ESPHome based

SlimmeLezer is powered by ESPHome. The code is now fully integrated within ESPHome.

Download the stl files for the case

Rather print the case yourself? No problem, download here the case:

Latest firmware

Firmware for older meters (DSMR2.x)

Please look also at Michiel Appelman his GitHub. He has forked the firmware specific for DSMR 2 and 3 meters.

Precompiled esp-link

Common asked questions and information

Please look here for common asked questions, I will fill this more when more questions are asked: https://www.zuidwijk.com/category/faq/slimmelezer/

47 reviews for SlimmeLezer+

  1. Harm Annema (verified owner)

    Hi Marcel,

    Just received my SlimmeLezer+ board, only can’t get it to function with my ZIV ESMR5 powered through the P1 port. I jused my multimeter to test the voltage from my meter with the supplied P1 cable from your kit and get a stable 5.24V. When testing with the SlimmeLezer+ attached to it and measuring the RJ12 socket contact’s on de back of the board I mesured arround 0.5V.

    Am I doing something wrong or do I have a defective board?

    Cheers.

    • Marcel

      I see I missed your message, I’m very sorry for that. I’ve noticed that this type of meter, the ZIV, is quite picky… almost 50/50. Can you test it with an external usb power supply?

  2. Alexander Heindl

    I got a KAIFA MA309 today. As far as I understand it’s P1 port uses MBUS. Is SlimmeLezer+ compatible with it?
    Here a pdf provided by my electricity provider. it’s german, but I guess you can interprete the technical details:
    https://www.netz-noe.at/Download-(1)/Smart-Meter/218_9_SmartMeter_Kundenschnittstelle_lektoriert_14.aspx

    • Marcel

      No, mbus is not compatible, unfortunately. I am considering in making a mbus version though 🙂

  3. György Szabó

    Hi.
    I have an electric meter type Aidon 6525. As I understand it implements a HAN interface on a RJ45 connector. Is it supported by SlimmeLezer+?
    You can find the Aidon HAN interface description linked below:
    https://www.nek.no/wp-content/uploads/2018/11/Aidon-HAN-Interface-Description-v10A-ID-34331.pdf

    Regards, György Szabó

    • Marcel

      No, unfortunately not…
      On the RJ45 connector, 2 pins are used for HAN:
      * RJ45 PIN1: +24V M-bus TX
      * RJ45 PIN2: GND
      This is MBus and not the “Dutch” P1 port

  4. Jean-Paul Wissink (verified owner)

    We’ve installed a SlimmeLezer+ on our ISKRA AM550. During installation we had to connect it to an powered USB-port to get it going but afterwards it works fine without any extra usb-power. But the last few weeks we had several dropouts where it stopped working and we had to re-attach a seperate USB-powerplug to get it to work again. When it has booted the USB-plug can be removed again. Any idea what this can be?

    • Marcel

      Yeah, ESPHome is causing the CPU to work harder (more workload) and besides that, more data is transmitted (and that’s 80% of the power consumption).
      Either strip down the code, only use bare minimum in your yaml code to lower the power consumption, or use a power adapter, or use esp-link.

  5. Fanefco

    Hello!
    When can I buy SlimmeLezer + again?

    • Marcel

      I hope 300 somewhere this week or next week and another 300 2 weeks later. Next order will be larger (after inspecting quality).

  6. Filip

    Hi Marcel – thank you for making an affordable and quality device!
    It is very easy to install and integrate into Home Assistant using their DSMR integration, and appears to be very stable too.
    It would be nice to see a more structured and elaborate manual for the web interface, in particular for the communication settings. (This has not hampered deployment and integration into Home Assistant in any way though).
    A more concerning note from a privacy/security perspective is that my stock firmware device makes regular attempts to connect to a Chinese IP address (apparently Alibaba, port 49899). I can’t find any documentation relating to this fact or to what data is actually being transferred. As such, I would not expect the device to communicate with any systems other than the ones configured during setup (like local networking services DHCP, NTP, domotics etc.)
    Thank you & kind regards

    • Marcel

      Hi Filip, what firmware are you using? On the SlimmeLezer I either use ESPHome or esp-link. In both cases I don’t own the code. Most likely its pre flashed with ESPHome and that should absolutely NOT connect to any other website besides what you decide in the config yaml. That’s on my website and on my Github. Esp-link I don’t know, it shouldn’t connect to any service.

  7. Chris

    Hi Marcel,
    I notice this page is not only used for reviews but also questions are asked. Please allow me to do just that.
    I am currently using P1 Monitor with the standard P1 USB cable connected one one end to my power meter and the other to Raspberry Pi. Would that mean that I can use Slimmelezer just from the box?
    Anything else needed to power it?
    I am new to Home Assistant, hence my questions.
    Looking forward to your answers 🙂
    Thanks and kind regards, Chris

    • Marcel

      Hi Chris, not really where this page intended for is, but hey, no problem 🙂 I havent used P1mon for a long time. In the time I used, it could only readout usb serial cables. The workaround was to use ser2net or socat, to create a virtual serial port. The SlimmeLezer+ comes default with esphome, yet can easilly be flashed with esp-link. With esp-link you can create a serial link over tcp/ip. As long as you can do that within P1mon, it will work.

  8. Eddy-Ped

    Hello Marcel.
    Question I have before buying, can this replace the p1 meter cable (rj12 to usb) to read out the p1 meter via ethernet in Domoticz ? or is this only out of the box usable in Homeassistant. Thank you for your reply.

    • Marcel

      Yes it can! Ethernet works immediately, if you wanna use WiFi-version, then you need to flash it with esp-link (makes it a serial2wifi bridge).

  9. Ronald (verified owner)

    Hi Marcel, I just installed the SlimmeLezer+ on my meter with DSMR 2.2+. At first it dit not give me any numbers, but after flashing it again with your firmware for 2.x it now works. At least, for electricity. There is no sensor visible in the Energy settings for gas, although there is a sensor.gas_delivered available, but Home Assistant insists that it is not available and says to contact the maker. So I’m back to you. Sorry for that.

    • Marcel

      Best is to make your own yaml file within esphome (see example) DSMR 2.2 has 9600 7E1 (documentation says 7N1) and you must disable the CRC-check. If the gas sensor isnt giving data, than maybe its on another bus id, see gas_mbus_id.

  10. Justin Fernandes (verified owner)

    Just received my SlimmeLezer+ 🤗
    Plugged in, added network info and works like a charm.
    So fun to see all the data.
    Only need to check how to add to the esphome dashboard that i can edit the .yaml
    Nice work Marcel

    Justin

  11. Noah

    Hi Marcel,
    I see that the new batch was there (or supposed to be) last Monday the 20th. Now I see they are out of stock, is this because the new batch is already of of stock or because it’s delayed? And if so when is the next opportunity to get a SlimmeLezer+?

    Regards,
    Noah Knegt

    • Marcel

      Probably next month, I’ve ordered another 600.

  12. Martin (verified owner)

    Hey Marcel, I bought the SlimmeLezer, but unfortunately overlooked the fact that it doesn’t seem to work in germany. Do you know a way to read out the gas meter BK-G4? I have an Elster IN-Z61 reed contact on the meter. An RJ11 cable can be plugged in for reading. But how can I read out the values ​​via the ESP? I would like to transfer the values ​​to Home Assistant. Please excuse my bad english. Can you help me?

    Many greetings
    Martin

    • Marcel

      Hi Martin, kan you mail me? You can reply to the order confirmation. Then we can communicate via mail 🙂

  13. kennethgevaert

    Hi marcel,
    Question: does this also work for the P1 port of the digital meter in Belgium?

    • Marcel

      Yes

  14. Frits

    Hi Marcel,
    Just received the email stock is there. Tryed to order immuniteit but recepten out of stock. Woensdag will the next batch arive.

    • Marcel

      This was a glitch in the system, there is unfortunately still no stock…

  15. Scherpenzeel

    Goed

  16. Jacob

    Hey. Am thinking of ordering one of theese, just got some questions.

    Will it work on a Landis +Gyr E360 with R12 Connection in Sweden? Will be Sterings it up to my HA on my Rpi4.

    Thanks in advance!

    • Marcel

      I’m not 100% sure Jacob… Looking at the documents, it’s suggesting that it has both mbus and p1. If the P1 is according to the Dutch P1 specifications, than it works. Mbus is different, that won’t work.

  17. Bubba

    Dear Marcel,
    I live in Hungary. I have a Fronius inverter based solar system. I’d like to know that the Slimmelezer+ will works with my Honey DTSD545 Electricity meter together. The unit has a P1 slot. Will I be able to collect the data from the electricity meter?

    The electricity meter manual: (sorry it is hungarian) https://www.eon.hu/content/dam/eon/eon-hungary/documents/Lakossagi/aram/muszaki-ugyek/fogyasztasmerok/Holley-DDSD285-DTSD545-v01.pdf

    Last three pages contains the info about P1 port. If the units fits then I would like to buy the Slimme meter wifi gateway and I install it to my Home Assistant system.

    Which option fits for me? Esphome or esplink?

    Thanks for your answer.
    Regards,
    Bubba

    • Marcel

      Looking at “14. P1 felhasználói port” it looks similar to the port I’m using. So yeah, it should work.

  18. Dimitri

    Beste, voor home assistant welke firmware gebruik ik het best ?
    Alvast bedankt .

    • Marcel

      Voor DSMR 4 en 5 maakt het niet uit, en is het meer een persoonlijke voorkeur. Voor DSMR 2 en 3 neig ik toch meer naar esp-link.

  19. Patrik

    Hi Marcel!
    I have a Landis +Gyr E120Lime. Do you know if slimmelezer will work with this meter?

    • Marcel

      Not sure, but looking at the specs, I think it’s mbus only, and not the required P1 interface.

  20. Jonas

    Hi, does this work with the KAIFA MA304 in Sweden?

    • Marcel

      If it supports the P1 standard, than it should work. If it’s MBUS only, thant it wont work.

  21. Kees Jan (verified owner)

    Just received and installed my slimmelezer-plus.
    Up and running within 10min. thanks to the FAQ 🙂

  22. Jasper (verified owner)

    I ordered and received the Slimmelezer+. It’s really simple to plug it in and connect it to home assistant. Only point that was a bit tricky (although mentioned in the manual) is that for the initial setup it needed extra power (I used the raspberry pi adapter for it). After that it works like a charm! Thanks for the perfect service you provided. Hopefully a CO2 device is next 🙂

  23. Andras (verified owner)

    Hi Marcel! IS the cable you provide cross-over or not? I already have a non crossed cable plugged in the meter, which is locked in a cabinet, so I can’t change it. Will it work with Slimmelezer or do I have to use a crossover plug? Thanks!

    • Marcel

      It’s a straight cable, 1-1, 2-2, … 6-6

  24. Mark Veldt (verified owner)

    SlimmeMeter+ with epsHome works great. Needed the USB power to make it work, even the meter is a SMR 5.0 (do not see the D on the casing).
    Only question I have is if the update frequency can be change to a longer time. It now gives updates every second and is kind of spamming Home Assistant.

    I see that espHome has the request_interval setting, but not sure if that will work without a configured request_pin. No idea what that request_pin should be.

    Thanks,
    Mark

  25. Mark Visser (verified owner)

    Eerste keer even aan een USB kabel (telefoon lader) koppelen zodat je de WIFI kan instellen. (zoek naar nieuw WIFI netwerk) . Toen ik dat gedaan had via het meegeleverde kabeltje in de meterkast op de meter aangesloten (en dus zonder verdere voeding) en vervolgens ziet Home Assistant de meter en werkt alles prima ! Erg tevreden 🙂

  26. Miklós

    Hi Marcel,

    I am from Hungary, and I have a Sanxing SX6x1 meter with a P1 port.
    I wonder if your SlimmeLezer will work with it.

    Thank you in advance!

    • Marcel

      You need to provide me more info…

  27. Peter (verified owner)

    Hi Marcel,
    Just uploaded the latest firmware, but now the meter is not responding anymore. Tried again to upload via ESPHome (with success), but still no response. Please advise.

    • Marcel

      Heb je het wel opnieuw aan je wifi gekoppeld?

  28. Pim

    Uh, 17:16 mail ontvangen en er staat nu alweer uitverkocht….klopt dat?

    • Marcel

      Ja en nee … was een foutje van mijn kant waardoor er 1 op voorraad kwam, dat triggerde gelijk de mailing naar iedereen dat er weer voorraad is… Er staan nu weer een paar online.

  29. Jeroen (verified owner)

    Ik heb hem ontvangen. Hij werkt echt super. Was even de juiste firmware installeren voor de juist firmware voor de bijbehoorende DMR versie. Alleen heb ik een klein probleem de meter kast is relatief ver van mijn wifi hostspot. Is het mogelijk om de wifi ontvangst te verbeteren door er een externe antenne aan te solderen?

    • Marcel

      Nee dat is helaas niet mogelijk :/

  30. Richard Fickert

    Ik heb de eerdere versie bij Marcel besteld, deze werk heel fijn! Ik heb hem uiteindelijk in Homey toegevoegd door hem te flashen met ESPeasy. Omdat binnen dit programma de slimme meter op de reguliere seriële poort werkt, heb ik er een extra device toegevoegd die naar de D7 pin kijkt. Deze publiceert dan op de zelfde poort als de “P1 Wifi Gateway”.

    • Marcel

      Nice! Zou je mij hier meer over kunnen mailen? Dan kan ik dit ook documenteren op mijn website 🙂

  31. Per Lygdman (verified owner)

    Easy to get it to work with my Landis+Gyr E360 and Home Assistant. About 15 minutes before i had it programmed and running. Even better with supplied power from the meter, very clean.
    Top notch!

  32. chris4 (verified owner)

    HI Marcel, the slimmelezer+ are ESP32 or ESP8266

    • Marcel

      ESP8266-12F

  33. AbeltjeNL (verified owner)

    Top product! Wel een klein vraagje.. Het actuele verbruik wordt weergegeven als 0,550w ipv 550w. Een template sensor lost dit op maar is dit ook vanuit ESPHome te doen?

    • Marcel

      Specificatie zegt dat het in kW resolutie getoond wordt, dus de sensor moet in kW 😉

  34. ron.gubbels (verified owner)

    Hoi Marcel,
    Ik heb een probleem met de slimmelezer …
    Ik krijg wel verbinding, maar er komen geen waardes.
    Krijg wel informatie over uptime e.d.
    Begrijp niet goed wat ik fout doe.
    Heb een voeding aangesloten, want anders is er uberhaupt geen verbinding.
    Lijkt wel of de P1 verbinding niet goed werkt.

    • Marcel

      Wat voor meter en/of dsmr versie heb je?
      Dat je zegt dat je een externe voeding nodig hebt, betekend dat je dsmr 2, 3 of 4 hebt. Ik heb een vermoeden dat het versie 2 of 3 is, daarvan is de seriële setting anders. Laat het me even weten. Je kan op je orderbevestiging antwoorden, dan kan ik je per e-mail verder helpen.

  35. Daan (verified owner)

    Afgelopen donderdag besteld en vandaag al binnen. Ik had niet verwacht dat het toevoegen aan Home-Assistant zo enorm makkelijk en foutloos zou gaan. Echt top! De data is betrouwbaar en real time. Ik zou iedereen die lokaal zijn energiemeter uit willen lezen de SlimmeMeter+ aanraden!

  36. koen (verified owner)

    snelle levering, vlotte installatie, alles lokaal op home assistant. Perfecte oplossing !

  37. Tim (verified owner)

    Werkt mooi, dankjewel! nog wel een vraag, de module is gekoppeld aan HA maar zie hem niet terug onder ESPHome, is dat de bedoeling of moet ik deze daar nog aan toevoegen op een manier voor updates of de code aan te passen etc. En een andere, de Power Consumption is best precies 0.000kW maar bijvoorbeeld de Current(A) Phase is in steps of 1A en Gas consumption is geen “live” grafiek in dashboard van te maken alleen terug te vinden in Energy tab.

    • Marcel

      Ik heb de dashboard_import functie nog niet rond (het ontbreekt me steeds aan tijd). Als je ‘m in esphome wilt hebben, raad ik je aan om het zelf aan te maken en daarmee te flashen, zie hier een paar voorbeelden: https://github.com/zuidwijk/dsmr/tree/main/Examples

  38. Dick Dijkstra (verified owner)

    Goedenavond Marcel, enige tijd geleden de slimme lezer + aangeschaft, vorige week uiteindelijke geïnstalleerd en in combinatie met Home Assistant geweldig resultaat! Vanochtend er echter spontaan mee opgehouden. Geen enkel vertoon van leven.. Is er een manier om hem weer tot leven te wekken?

    • Marcel

      Je kan ‘m opnieuw flashen met esphome. Mail me anders even (reply op orderbevestiging oid) dan kijken we er samen even naar.

  39. Michel

    Not a review, but not sure how to contact otherwise. Issues tab on Github is not showing for some reason and can’t find other contact info.

    Anyway, FYI the slimmelezer.yaml on Github does not work https://github.com/zuidwijk/dsmr/blob/main/slimmelezer.yaml
    When I try to use it I get an error “improv_serial requires the logger baudrate to be not 0”. Not sure what the baudrate should be for the logger so can’t fix it myself 🙁

    • Marcel

      I edit it… I really want improv to work, yet it requires baud_rate nog to set to 0 (and that must be 0 otherwise it doesn’t use hardware serial port, but software serial).
      See GitHub: https://github.com/esphome/issues/issues/2873

  40. Dick Dijkstra (verified owner)

    Hi Marcel,
    as my esphome based wifi SlimmeLezer+ died, I decided to acquire the Ethernet version. It arrived today. I earlier read a lot of instructions around the WIFI Slimmelezer+ and I installed it earlier without issues. However I can’t find many instructions for the Ethernet version, apart from changing serial port settings, what I did to cater for my DSMR 2.2. meter.
    Now I’m stuck with installing the DSMR integration, after choosing for network, It asks for host and port. I assume that host is the IP-adres of the slimmelezer, however which port do I have to use?
    I can’t get beyond this installation screen…
    thanks,
    Dick

    • Marcel

      Hey Dick, omdat je DSMR 2 hebt, moet je de serial settings aanpassen, zie hier de documentatie. Als dat gedaan is, dan kan je het via de DSMR Slimme Meter integreren. Daar kies je voor netwerk, je vult in het ip van de ethernet module, poort 23 en de juiste DSMR versie. Als daar een mismatch in zit, zal de integratie het niet detecteren.

  41. Dick Dijkstra (verified owner)

    I found the portnumber: 23, but get directly the message “kon niet verbinden”
    Tried portforwarding, no succes so far..

    • Marcel

      Zie eerdere melding 🙂

  42. Michael Sterk (verified owner)

    Hi Marcel,

    I just received the slimmelezer but it looks like it is not able to read any values from the slimmemeter. Slimme meter: Landys Gyr E360. Do you have any clue?
    Thanks in advance.

    • Marcel

      I’ve send you an email

  43. Teun (verified owner)

    Prima product, let wel dat met een ZIV E0069 DSMR versie 5 meter van Enexis (zie ook https://www.enexis.nl/meter/handleiding-slimme-meter laatste meter) toch USB voeding noodzakelijk is omdat de P1 poort niet voldoende stroom levert.

  44. Jonte

    Hi! Just wondering when the Slimmelezer+ will be back in stock?

    • Marcel

      I’m expecting 600pcs within about 2 weeks

  45. Jordi (verified owner)

    Using the SlimmeLezer for a few months with Homeassistant now and love the insights it gives. However I do have one question; Since last week I installed solar panels. When the panels produce energy the “enery consumed” is always 0. I understand that the panels produce more energy then I consume at the moment but is there a way to still show how much is consumed? Like in this graph: https://www.home-assistant.io/images/blog/2021-08-energy/energy-usage.png
    Also I do not see any option in how much is delivered to the grid, is that right?

    • Marcel

      I dont have solar panels myself (yet). But it should be a sum of power used and power returned to grid. The sensor energy consumed is what you use from the grid and that is 0 if you produce more than you’re using. At this time I can’t give you the answer and advicing you to ask that on the Hom Assistant forum/discord. I do love to hear from you when you’ve made it. I’d like to share that knowledge!

  46. Pieter

    Wanneer komen de nieuwe SlimmeLezers weer binnen?

    • Marcel

      They’re here next to me (600 pcs) ready to be checked and flashed. I think next week in the shop.

  47. Peter

    Do not have a SlimmeLezer yet. Noticed another post about Landys Gyr E360 (RJ12). Are there any issues with compatibility?

    • Marcel

      You can check if the port is P1 or mbus, the last one (mbus) is not supported with my devices.

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