# Homey App for Hoymiles HM-1500 Microinverter connected to Hoymiles DTU-PRO **URL:** \ **Category:** Apps\ **Created:** [August 30, 2023, 8:15pm UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417 "2023-08-30T20:15:39Z")\ **Posts on this page:** 11\ **Page:** 3
**Author:** ![Gabriel\_Pedrosa\_Mach](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gabriel_pedrosa_mach/32/176567_2.png) [@Gabriel\_Pedrosa\_Mach](https://community.homey.app/u/Gabriel_Pedrosa_Mach)\ **Post date:** [March 24, 2026, 7:22pm UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/44 "2026-03-24T19:22:12Z")
Typically, inverters and power supplies are only visible on the Wi-Fi network while they are generating energy. At night, they don’t even respond to pings. ---
**Author:** ![R33](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/r33/32/119781_2.png) [@R33](https://community.homey.app/u/R33)\ **Post date:** [March 26, 2026, 2:52pm UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/45 "2026-03-26T14:52:46Z")
![IMG_1308](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/a/e/ae2c64702879cf7916e2e60d97f5369ff3a0566b.jpeg) ![IMG_1309](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/1/3/13882a9d564e9c7d7adcfc5a4194fff25b15cd7b.jpeg) Today the homey displays Some other values than the DTU ---
**Author:** ![Espen\_Botnan](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/espen_botnan/32/48618_2.png) [@Espen\_Botnan](https://community.homey.app/u/Espen_Botnan)\ **Post date:** [March 27, 2026, 2:02pm UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/46 "2026-03-27T14:02:45Z")
Great to see this is happening now!! I tried to install my DTU-Pro-S, but I only get “Homey object has no attribute” error message. I’ve tried to scan the network, as well as inputting the IP address and the Serial Number, but still the same. ---
**Author:** ![Gabriel\_Pedrosa\_Mach](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gabriel_pedrosa_mach/32/176567_2.png) [@Gabriel\_Pedrosa\_Mach](https://community.homey.app/u/Gabriel_Pedrosa_Mach)\ **Post date:** [March 28, 2026, 9:27pm UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/47 "2026-03-28T21:27:55Z")
**What was wrong:** The app was calling the Node.js translation function (`homey.__()`) in Python code, which crashes instead of showing the proper error message. This masked a second issue: your DTU-Pro-S likely requires an encrypted connection (common on newer firmware), and the error about that never reached you. I’ve published a test build that fixes both. Could you try it here: [https://homey.app/en-br/app/gpm.hoymiles.solarpanel/Hoymiles-Wi-Fi-Solar-Panel/test/](https://homey.app/en-br/app/gpm.hoymiles.solarpanel/Hoymiles-Wi-Fi-Solar-Panel/test/) ---
**Author:** ![Espen\_Botnan](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/espen_botnan/32/48618_2.png) [@Espen\_Botnan](https://community.homey.app/u/Espen_Botnan)\ **Post date:** [March 30, 2026, 11:13am UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/48 "2026-03-30T11:13:46Z")
I deleted the old version of the app, then installed your updated version. First I tried to find the DTU by scanning the network, but no success. Then tried to add it by the IP address. Then it only says that it is not able to reach it on the IP address (see screenshot). I have double-confirmed the IP address (which is also set as static address). BTW: The DTU is connected to my Mesh router through cabled ethernet. Would it be better if I only connected it through wifi instead? ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/8/f/8fba620fa5449eabb556acfeb01934b9b53e50d6.png) ---
**Author:** ![Gabriel\_Pedrosa\_Mach](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gabriel_pedrosa_mach/32/176567_2.png) [@Gabriel\_Pedrosa\_Mach](https://community.homey.app/u/Gabriel_Pedrosa_Mach)\ **Post date:** [March 30, 2026, 2:22pm UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/49 "2026-03-30T14:22:33Z")
Hi Espen, Thanks for the screenshot — the error message is now displaying correctly, which is good. The IP `192.168.68.x` looks like a TP-Link Deco network. A couple of things to check: **1. Is Homey on the same subnet?** Go to Homey → Settings → General → and check your Homey’s IP address. If it starts with `192.168.68.x` as well, you’re on the same network. If it’s a different range (e.g. `192.168.1.x`), that’s the problem — Homey and the DTU can’t see each other. **2. Run a quick port check** (from any PC on the same network): ```auto nmap -Pn -p 10081 192.168.68.101 ``` If it shows `closed`, the DTU firmware may not support the protocol this app uses (some firmware versions use Modbus on port 502 instead). If it shows `open`, it’s a network routing issue. **Wired vs Wi-Fi:** switching the DTU to Wi-Fi may help if the mesh router is isolating wired and wireless clients — but only if both end up on the same `192.168.68.x` subnet. ---
**Author:** ![Espen\_Botnan](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/espen_botnan/32/48618_2.png) [@Espen\_Botnan](https://community.homey.app/u/Espen_Botnan)\ **Post date:** [March 31, 2026, 7:52am UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/50 "2026-03-31T07:52:21Z")
Yes, the Mesh network is based on TP Link Deco M4 units. Confirmed that the DTU and Homey is on the same subnet. I did the nmap, and the results is 10081/tcp closed famdc ☹ The hardware version of the DTU is H09.06.01, and firmware is V00.02.13. So does this mean I will not be able to integrate it to my Homey? ---
**Author:** ![Gabriel\_Pedrosa\_Mach](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gabriel_pedrosa_mach/32/176567_2.png) [@Gabriel\_Pedrosa\_Mach](https://community.homey.app/u/Gabriel_Pedrosa_Mach)\ **Post date:** [April 1, 2026, 11:10am UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/51 "2026-04-01T11:10:17Z")
Hi Espen, Thanks for running the nmap scan — that’s very helpful. Port `10081 closed` on your DTU-Pro is likely because it’s connected via **Ethernet**. There are strong indications that port 10081 is only available on the Wi-Fi interface, while Modbus TCP (port 502) is Ethernet-only. Could you temporarily connect your DTU-Pro via **Wi-Fi** and run the scan again? ```auto nmap -Pn -p 10081 ``` If port 10081 shows as `open`, switching to Wi-Fi permanently would solve the issue. * * * ---
**Author:** ![Matthijs\_Bonnema](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/matthijs_bonnema/32/67663_2.png) [@Matthijs\_Bonnema](https://community.homey.app/u/Matthijs_Bonnema)\ **Post date:** [August 14, 2026, 5:36pm UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/52 "2026-08-14T17:36:25Z")
Hi @Gabriel_Pedrosa_Mach , Thank you for creating the app! The app detected 12 panels, but I have 11. But I can’t change it, since the max number is 8. Could you increase the max allowed panels? ---
**Author:** ![Gabriel\_Pedrosa\_Mach](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gabriel_pedrosa_mach/32/176567_2.png) [@Gabriel\_Pedrosa\_Mach](https://community.homey.app/u/Gabriel_Pedrosa_Mach)\ **Post date:** [August 14, 2026, 8:05pm UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/53 "2026-08-14T20:05:08Z")
Hi Matthijs, Thanks for the report — found the issue. The Panel Count setting was capped at 8, but it should support up to 32. Worse, it turns out the app’s automatic panel-count correction (which runs once when the device starts up) was silently failing too, since it also couldn’t write a value above 8 — so even restarting wouldn’t have fixed the mismatch you saw (12 detected vs. 11 actual). Fixed in test build v1.1.23, published here: > **[Hoymiles Wi-Fi Solar Panel | Homey](https://homey.app/en-gb/app/gpm.hoymiles.solarpanel/Hoymiles-Wi-Fi-Solar-Panel/test/)** > > Local monitoring for Hoymiles DTU - WLite, Pro and Pro-S. No Cloud required. Could you install the test version and restart the app (or just wait for it to auto-restart)? The panel count should self-correct to 11 without you needing to touch the setting. If it doesn’t, you can also just edit the Panel Count setting manually now that the limit is raised. Let me know how it goes. Gabriel ---
**Author:** ![Matthijs\_Bonnema](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/matthijs_bonnema/32/67663_2.png) [@Matthijs\_Bonnema](https://community.homey.app/u/Matthijs_Bonnema)\ **Post date:** [August 15, 2026, 5:09am UTC](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417/54 "2026-08-15T05:09:27Z")
Thanks for the quick fix. I was able to successfully set it to 11. It stayed on 12 after a reboot. I think my installer made a mistake and set 12 panels somehow on the DTU. I have requested an installer account to look into this. [Previous page](https://community.homey.app/t/homey-app-for-hoymiles-hm-1500-microinverter-connected-to-hoymiles-dtu-pro/88417.md?page=2)