This is the NUCLEO-WL55 board from STMicroelectronics, offered by Mend0z0 with our latest firmware package, MendOS. MendOS runs on the NUCLEO-WL55 board, enabling your devices or sensors to connect to a host PC without giving access to unauthorized connections and with an uninterrupted wireless link over the sub-GHz frequency range (150 MHz–980 MHz).

Why It’s Good for You (and Your Customers)

• ✅ Cut Development Costs
  Pre-integrated wireless and MCU solution reduces time and BOM.

• 🔁 Encourages Returning Business
  Build once, scale often. Customers appreciate consistency and reliability.

• 📶 Better Wireless Performance
  Operates in Sub-GHz bands, avoiding 2.4 GHz congestion – ideal for interference-resistant applications.

• 🔒 Higher Quality, More Reliable Connectivity
  Built-in ARM TrustZone® and low-power features ensure secure, always-on communication.

• 📡 Reliable Antenna
  Built-in SMA antenna prevents signal loss and makes setup easy.

• 🛠️ Integrated Debugging
  Includes STLINK-V3 debugger/programmer—no extra hardware needed.

• 💾 On-board Storage
  800 kB of FAT-formatted storage ready for your data.

• 🔌 Plug-and-Play Communication
  Virtual COM and debug ports—all-in-one board, just connect via USB.

• 🌐 Cross-Platform Access
  Easily connect to your RPi, phone, or PC to access your sensor instantly.

• 🆔 Global Traceability
  IEEE-compliant UID allows easy database storage—no manual numbering required.

• 🎛️ Built-in Controls & Indicators
  Buttons and LEDs included—no extra components necessary.

• 🤖 Arduino/Raspberry Pi -Compatible
  Seamlessly transfer your projects with full Arduino support.

• ⚡ OTA Firmware Updates
  No need to flash manually—firmware can be upgraded easily over-the-air.

• 🌍 Worldwide Ready
  Same board works globally—just load your code, no other changes needed.