NuMaker-IoT-M263A board is the Swiss army knife of IoT development

If you’d like an MCU board to experiment with various wireless (and wired) protocols used for Internet of Things applications, the Nuvoton NuMaker-IoT-M263A development board may be worth a look.

Powered by a NuMicro M263KIAAE Arm Cortex-M23 CPU microcontroller, the board offers WiFi, Bluetooth, and LoRa connectivity, plus an mPCIe socket for 3G, 4G, or NB-IoT cellular connectivity. It also comes with various sensors, as well as CAN and RS485 transceivers for industrial control applications.

NuMaker-IoT-M263ANuMaker-IoT-M263A key features and specifications:

  • MCU – Novoton NuMicro M263KIAAE Arm Cortex-M23 microcontroller @ 64 MHz with 96KB SRAM, 512 KB  dual-bank flash for OTA upgrade, 4 KB LDROM; LQFP128 package
  • Storage – MicroSD card connector
  • On-board wireless modules
    • ESP12-F (ESP8266) 802.11b/g/n module
    • MDBT42Q-PAT Bluetooth 4.2/5.0 LE module
    • APC1278 (for 408 / 433 / 470 MHz)  LoRa module plus antenna
  • Serial – CAN and RS485 transceiver
  • USB – 1x Micro USB OTG connector (to M263 MCU)
  • Sensors
    • BME680 4-in-1 air quality sensor measuring relative humidity, barometric pressure, ambient temperature, and gas (VOC) levels
    • BMX055 9-axis accelerometer, gyroscope, and magnetometer
  • Expansion
    • Mini PCIe socket with SIM card connector tested with Quectel BG96/EC21 3G/4G/NB-IoT cards
    • Arduino UNO compatible headers
  • Debugging – On-board Nu-Link2-Me debugger and programmer with SWD interface, on-line /off-line programming, and Virtual COM port function
  • Misc – Various LEDs and buttons,
  • Power Supply
    • External VDD (5V) power connector
    • Arduino UNO compatible extension connector VIN
    • USB OTG connector on M263 platform
    • ICE USB connector on Nu-Link2-Me
    • Power jack for mini PCIe connector
    • Ammeter connector for measuring the microcontroller’s power consumption

NuMicro M263 IoT development Board

The board can be programmed with KEIL MDK Nuvoton edition M0 / M23, IAR EWARM, or NuEclipse (GCC) for Windows or Linux and corresponding USB drivers. You’ll find more information and links to documentation in the Getting Started guide.

NuMaker-IoT-M263A board can be used to develop applications for other M263 microcontrollers with different I/O configurations, packages, and price points.

NuMicro M263 Microcontroller Block Diagram
M263 MCU Block Diagram

Those are generic purpose MCUs with Armv8-M core with TrustZone security, and as we can see from the devkit specifications and block digram there’s no built-in wireless connectivity inside the chip itself.

NuMaker-IoT-M263A development board can be purchased directly from the Nuvoton store for $100.

Via CTimes

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3 years ago

So the USB interface is only 12Mbps? FS = Full Speed, i.e. 12Mbps vs HS = High Speed, i.e. 480Mbps.

3 years ago

Needs Zigbee and Z-Wave add-on boards

Khadas VIM4 SBC