Wed. Feb 11th, 2026
Nuvoton NuMaker MG51FC development board

The Nuvoton MG51FC evaluation board (NuMaker-MG51FC) is designed to help developers evaluate and prototype with the NuMicro MG51FC9AE microcontroller, part of Nuvoton’s low-power 8-bit 8051 MCU family. This platform combines the MG51FC target board with an on-board Nu-Link2-Me debugger/programmer, providing a ready-to-use environment for testing, debugging, and measuring power consumption.

Aimed at applications such as home appliances, LED lighting control, motor control, and industrial automation, the NuMaker-MG51FC offers flexible power options, Arduino UNO-compatible headers, and extension connectors for full pin access. The built-in ammeter connector allows developers to instantly measure MCU power consumption, making it easier to evaluate performance in low-power scenarios.

Nuvoton NuMaker-MG51FC development board front and back

Nuvoton NuMaker-MG51FC evaluation board specifications:

The target board uses the NuMicro MG51FC9AE microcontroller from Nuvoton’s MG51 series of low-power 8-bit MCUs. This MCU runs at 24 MHz and includes 64 KB Flash, 4 KB SRAM, and 2 KB LDROM for IAP. It offers 37 GPIO pins and supports UART, I²C, SPI, PWM, timers, ADC, and a Watchdog Timer. Low-power modes reduce current consumption to 200 nA, making it ideal for battery-powered devices.

Nuvoton NuMaker-MG51FC development board specifications

The board provides full pin extension connectors and Arduino UNO-compatible headers for connecting sensors, actuators, and shields. You can power it using an external VDD connector, Arduino UNO Vin pin, USB port, or ICE USB port. The ammeter connector measures real-time MCU power consumption and helps developers improve energy efficiency.

The Nu-Link2-Me on-board debugger/programmer supports on-chip debugging and In-Circuit Programming (ICP) through the SWD interface. It includes a Virtual COM (VCOM) port for serial communication and LED indicators for programming status. You can detach the Nu-Link2-Me from the board and use it as a standalone programmer for mass production.

Arduino UNO Compatible Extension Connectors

Developers can write and debug firmware using Nuvoton’s NuEclipse IDE, Keil C51, or IAR EW8051. They can also use NuEclipse SDCC, Nuvoton’s cross-platform embedded development suite for 8051 and ARM cores. The MG51 series supports In-System Programming (ISP) and In-Application Programming (IAP), allowing developers to update firmware without removing the MCU from the circuit. The VCOM functionality enables developers to log and debug messages directly on a PC during development.

The Nuvoton NuMaker-MG51FC evaluation board is available through Nuvoton’s official distributors and online marketplaces, with pricing typically around $25 to $30 USD, depending on the seller and region. More details can be found on the official product page and press release.

Images used courtesy of Nuvotron.

By Sayantan Nandy

I’m Sayantan Nandy, an electronics content writer and engineer with over four years of industry experience. I’ve worked with embedded systems, open-source hardware, and power electronics. My hands-on projects include work with ESP32, RISC-V chips, SoCs, and SBCs, along with designing power supplies, IGBT-based drives, and PCBs.

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