OpenDTU SolarZero PCB Case for SZ-OpenCB-V.5 Community-Board PCB 2024/01
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Model Overview & Print Notes
📄 OpenDTU Zerosolar PCB A compact enclosure specifically designed for the OpenDTU Community Board (SZ-OpenCB-V.5_0 by Nick Förster) with pre-soldered CMT2300A module – ideal for PV monitoring setups requiring minimal space and clean wiring. If you like this model, I’d truly appreciate a like! Your support means a lot and inspires me to keep creating and sharing more designs. 💖 ✅ Compatibility This case supports: OpenDTU Community Board SZ-OpenCB-V.5_0 (2024-01) All ESP32 variants with 0.96" or 1.3" OLED displays (different VCC/GND layouts supported via jumpers) Designed for the CMT2300A pre-soldered version 📌 Other radio modules for Hoymiles HM types may also work, but radio model and connection differs. 🛠 Recommended Print Settings Material : PETG or ASA (for UV/weather resistance) Infill : 25–30 % Layer height : 0.2 mm Supports : Optional – minimal needed Walls : 2–3 perimeters 🌦 Use Cases PV system monitoring via OpenDTU Clean indoor or protected outdoor installations Ideal for Hoymiles HM/HMS family 🧩 Design and Functionality Minimal footprint with no cable clutter Enclosure accepts both OLED display sizes Rear-mounted SMA antenna improves reception Jumper-configurable board support for flexible display/power pinouts Updated version improves PCB retention and fastening points Optional CAN bus transceiver upgrade available (see related model in my collection) 📋 Materials List 1× printed enclosure (this model) 1× SZ-OpenCB-V.5_0 Community Board 1× ESP32 dev board 1× 0.96" or 1.3" OLED display 1× CMT2300A pre-soldered (or alternative radio module) 1× 15 cm 868 MHz SMA antenna (3 dBi) 4× M2.3×8 mm screws (DIN 7981) 📦 Case Compatibility & Credits Designed independently due to the community site going offline Based on board by Nick Förster (Foerster Solutions) Original PCB info: 💻 solarzero.org 📩 [email protected] 🛒 ebay shop: https://www.ebay.de/itm/405595200167 🔗 Related Models in My Collection If you are interested in my upgrade with CAN-BUS transeiver please find the file in my collection: 🔌 OpenDTU on Battery / Zerosolar PCB References: Source for the printed circuit board: Support for the PCB: Reference tag of the PCB: TDS & manual: Link to the shop where I bought my version: Home - solarzero.org [email protected] SZ-OpenCB-V.5_0 by Nick Förster 2024 Datenblatt-CommunityBoardV4.pdf (www.zerosolar.org) OpenDTU CMT2300a E49-900M20S HMS/HMT | eBay In you are happy with the model I would appreciate you hit the Like button.