SUNA

PV dashboard for Hoymiles

See your Hoymiles micro inverters live, on the balcony or on the roof, each panel on its own. SUNA Home reads an OpenDTU or AhoyDTU on your home network, with no cloud at all. SUNA Online fetches the values from the Hoymiles app.

local with SUNA Home via the cloud with SUNA Online
Hoymiles

Micro inverters HM, HMS and HMT

Hoymiles micro inverters, often in balcony systems. They have no Wi-Fi and radio their values to a DTU. With an OpenDTU or AhoyDTU on the home network, SUNA reads them there, without any cloud. With the Hoymiles DTU, SUNA Online reads the values from the Hoymiles app.

Which models belong to it

  • HM‑300 to HM‑1500, for 1, 2 or 4 panels
  • HMS‑300 to HMS‑2000, the newer series
  • HMT‑1600 to HMT‑2250, three-phase, for 4 or 6 panels

How SUNA gets the values

SUNA Homeat home on your network, live

OpenDTU Beta

An OpenDTU on the home network, a small radio device you can buy ready-made or build yourself. Plus a small computer for SUNA.

  • PV power
  • each string
  • temperatures

New values every 10 seconds, even without internet.

AhoyDTU Beta

An AhoyDTU on the home network. Plus a small computer for SUNA.

  • PV power
  • each string
  • temperatures

New values every 15 seconds, even without internet.

SUNA Onlinevia the manufacturer’s cloud, also on the go

Hoymiles app (S-Miles) Beta

Your account in the Hoymiles app and a Hoymiles DTU (DTU Lite, DTU Pro) or an inverter with built-in Wi-Fi. No extra hardware.

  • PV power

New values every 5 to 15 minutes, depending on how often the DTU sends.

From these values SUNA calculates daily totals, history and statistics.

Good to know

  • It does not work without a DTU. The Hoymiles DTU (DTU Lite, DTU Pro) sends the values to the Hoymiles cloud, which SUNA Online reads. For SUNA Home without a cloud you need an OpenDTU, which can also be bought ready-made.
  • For HM devices the OpenDTU needs an NRF24 radio module, for HMS and HMT a CMT2300A module. AhoyDTU reads HM and HMS.
  • Micro inverters know nothing about the grid or the house. SUNA shows what the panels produce, each one on its own, plus daily yield and temperature.
  • New and still beta.

How to get started

With SUNA Online

  1. Create an account and try it free for 30 days, no payment details needed.
  2. Under “Add plant”, choose SUNA Online and your manufacturer.
  3. Enter the access as described above. SUNA then shows your plant in the browser and in the app.
Try for free

With SUNA Home

  1. Install SUNA Home on a small computer on your home network, for example a Raspberry Pi. Allow about 15 minutes.
  2. Open SUNA in the browser and choose your device under Setup, Inverter.
  3. Enter the address of the gateway, stick, dongle or DTU. New values arrive every few seconds, even without internet.
Install step by step

Questions about Hoymiles

Do I need a DTU?

For SUNA Home yes: an OpenDTU or AhoyDTU on your home network, new values arrive every 10 to 15 seconds without a cloud. For SUNA Online the Hoymiles DTU (DTU Lite, DTU Pro) or an inverter with built-in Wi‑Fi is enough, then SUNA reads the Hoymiles cloud.

Which radio module does the OpenDTU need?

For HM devices an NRF24 radio module, for HMS and HMT a CMT2300A module. AhoyDTU reads HM and HMS. You can also buy a ready-made OpenDTU.

Do I also see what my house consumes?

Micro inverters know nothing about the grid or the house. SUNA shows what the panels produce, each one on its own, plus daily yield and temperature.

Other manufacturers

All devices at a glance

Your device is missing?

Tell us the manufacturer and model, new drivers are built on demand. hallo@suna.solar