Arduino MKR WIFI 1010 Development Board
Arduino MKR WiFi 1010 — 32-bit ARM Cortex-M0+ — Wi-Fi & Bluetooth LE — Secure IoT Dev Board The Arduino MKR WiFi 1010 (SKU: ABX00023) combines a low-power 48 MHz...
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Arduino MKR WiFi 1010 — 32-bit ARM Cortex-M0+ — Wi-Fi & Bluetooth LE — Secure IoT Dev Board
The Arduino MKR WiFi 1010 (SKU: ABX00023) combines a low-power 48 MHz SAMD21 processor, u-blox NINA-W102 Wi-Fi & BLE module, and an ATECC508 hardware crypto chip into the compact MKR form factor — giving you everything needed to build secure, connected IoT prototypes without external modules.
Key Highlights
- Low-Power 32-bit Core — The SAMD21G18A Cortex-M0+ MCU runs at 48 MHz with 256 KB Flash and 32 KB SRAM, delivering responsive performance while keeping energy draw minimal — ideal for always-on IoT nodes.
- Integrated Wi-Fi & Bluetooth LE — The u-blox NINA-W102 module provides 802.11 b/g/n 2.4 GHz Wi-Fi and Bluetooth 4.2 / BLE in a single certified chipset, eliminating the need for any external radio hardware.
- Hardware Security Built In — The onboard Microchip ATECC508 crypto element handles key storage, certificate authentication, and encrypted communication at the silicon level — critical for secure IoT deployments.
- LiPo Battery Ready — A dedicated BQ24195L charging circuit lets you connect a single-cell Li-Po battery (3.7 V, 1024 mAh minimum) and run fully untethered, with automatic USB top-up when plugged in.
- Flexible Analog & Digital I/O — 7 analog inputs (8/10/12-bit ADC), 1 analog output (10-bit DAC), 8 digital I/O pins, and 13 PWM-capable pins give broad sensor and actuator coverage in a compact footprint.
- Full-Speed USB Host & Device — Native USB support lets the board act as both a USB device (programming and serial comms) and a USB host (keyboards, MIDI devices, and more) — no external USB IC needed.
- MKR Shield Ecosystem — Pin-compatible with all MKR shields and carriers — including motor control, relay, GPS, and ENV shields — so you can stack modules directly and extend functionality without custom PCB work.
- Arduino IDE & Cloud Ready — Full support for the Arduino IDE, Arduino Cloud, and the WiFiNINA & ArduinoBLE libraries out of the box — no driver hunting or manual configuration required.
Technical Specifications
| Specification | Details |
| SKU | ABX00023 |
| Microcontroller | SAMD21G18A — ARM Cortex-M0+ 32-bit |
| Clock Speed | 48 MHz (main), 32.768 kHz (RTC) |
| Flash Memory | 256 KB (internal) |
| SRAM | 32 KB |
| EEPROM | None (emulated via FlashStorage library) |
| Wireless Module | u-blox NINA-W102 — Wi-Fi 802.11 b/g/n 2.4 GHz & Bluetooth 4.2 / BLE |
| Secure Element | Microchip ATECC508 |
| Operating Voltage | 3.3 V (NOT 5 V tolerant) |
| Input Voltage | 5 V (USB or VIN pin) |
| Battery Support | Li-Po single cell, 3.7 V, 1024 mAh minimum (BQ24195L charger IC) |
| Digital I/O Pins | 8 |
| PWM Pins | 13 (D0–D8, D10, D12, A3, A4) |
| Analog Input Pins | 7 (ADC 8 / 10 / 12-bit) |
| Analog Output Pins | 1 (DAC 10-bit) |
| External Interrupts | 10 (D0, D1, D4, D5, D6, D7, D8, D9, A1, A2) |
| Interfaces | 1× UART, 1× SPI, 1× I2C |
| DC Current per I/O Pin | 7 mA |
| USB | Full-Speed USB Device & embedded Host (Micro-USB) |
| Onboard LED | LED_BUILTIN on pin 6; RGB LED on NINA module |
| Dimensions | 61.5 × 25 mm |
Common Applications & Use Cases
- Home Automation — Control lighting, HVAC systems, and smart plugs over Wi-Fi; pair with the Arduino Cloud for voice assistant or smartphone integration without a separate hub.
- Environmental Monitoring — Attach temperature, humidity, CO₂, or air quality sensors to the analog inputs and stream live readings to a cloud dashboard or local MQTT broker over Wi-Fi.
- Wearable & BLE Peripherals — Use the Bluetooth LE stack to build heart rate monitors, fitness trackers, or proximity beacons that push data to iOS and Android apps via the ArduinoBLE library.
- Industrial Sensor Networks — Deploy multiple boards as wireless sensing nodes; each connects to a central router or access point and transmits telemetry for factory floor or lab monitoring.
- Secure IoT Gateways — Leverage the ATECC508 crypto chip for TLS certificate storage and mutual authentication, making the board suitable for IoT deployments where data integrity is a requirement.
- Battery-Powered Remote Sensors — The onboard LiPo charging circuit and SAMD21 low-power sleep modes combine for solar or battery-operated field sensors where grid power is unavailable.
- Robotics & RC Control — Drive servo motors or ESCs via the 13 PWM-capable pins while receiving commands over Wi-Fi or BLE from a tablet or PC controller application.
- Data Logging — Pair with an SPI-based SD card module to log sensor data locally, then periodically upload batched files to a cloud server using the onboard Wi-Fi connection.
- Classroom IoT Curriculum — Arduino's official libraries, extensive documentation, and compatible shields make this an accessible teaching platform for university-level embedded systems and IoT courses.
- Rapid IoT Prototyping — The MKR shield ecosystem lets you stack motor control, relay, ENV, and GPS modules directly onto the board, cutting prototype build time from days to hours.
What's in the Box
- 1 × Arduino MKR WiFi 1010 Board (ABX00023)
Note: accessories such as power supplies, cables, cases, and SD cards are sold separately and not included unless stated above.
Frequently Asked Questions
Is the Arduino MKR WiFi 1010 compatible with the Arduino IDE and other software?
Yes — the MKR WiFi 1010 is fully supported by the Arduino IDE (1.8.x and 2.x) on Windows, macOS, and Linux. Install the Arduino SAMD Boards package via the Boards Manager, then add the WiFiNINA and ArduinoBLE libraries from the Library Manager. The board also integrates with the Arduino Cloud IoT platform for over-the-air sketch updates and real-time dashboards. PlatformIO users can target the board using the official SAMD platform package without any additional patching.
How should I power the Arduino MKR WiFi 1010?
The board accepts 5 V via Micro-USB or through the VIN pin. For untethered use, connect a single-cell 3.7 V Li-Po battery (minimum 1024 mAh) to the onboard JST connector — the BQ24195L charging IC automatically tops up the battery whenever USB is present. For field deployments the battery alone is sufficient, and using the SAMD21's deep-sleep modes can extend run-time significantly. Do not apply more than 5.5 V on VIN as this risks damaging the onboard regulator.
Does the MKR WiFi 1010 run an operating system or firmware?
The board runs bare-metal firmware written in the Arduino C/C++ framework — there is no Linux or embedded OS. The NINA-W102 radio module runs its own separate firmware (nina-fw), which must be updated independently using the Firmware Updater tool in the Arduino IDE. For RTOS-based multi-task scheduling, third-party FreeRTOS libraries compatible with SAMD21 are available. This is a microcontroller board — it is not comparable to a Raspberry Pi or similar microprocessor platform.
What storage options are available, and can I add an SD card?
Onboard storage is limited to 256 KB internal Flash and 32 KB SRAM — there is no SD slot or dedicated EEPROM. For external storage, connect any SPI-based SD card module to the SPI pins (MISO, MOSI, SCK) plus a chip-select GPIO, then use the Arduino SD library. For small persistent data such as Wi-Fi credentials or calibration values, the FlashStorage library emulates EEPROM by writing to internal Flash pages without requiring external hardware.
What accessories do I need to get started?
At minimum you need a Micro-USB cable and a PC with the Arduino IDE installed. For breadboard prototyping, a standard half-size breadboard and male header pins (solder them yourself or order pre-soldered) are useful. Running without USB requires a 3.7 V Li-Po battery with a JST-PH 2-pin connector. Sensors connect directly to the 3.3 V analog or digital pins. For rapid expansion, MKR shields such as the MKR ENV Shield or MKR Relay Proto Shield snap directly onto the board headers.
How does the MKR WiFi 1010 compare to the older Arduino MKR1000?
The MKR WiFi 1010 is the direct successor to the MKR1000 WiFi. Both share the same SAMD21 processor and MKR form factor, but the 1010 upgrades the radio to the u-blox NINA-W102, adding Bluetooth 4.2 / BLE capability that the MKR1000 completely lacked. The 1010 also introduces a dedicated ATECC508 hardware security element absent from the MKR1000, and benefits from improved Wi-Fi throughput and lower power consumption. For any new project, the MKR WiFi 1010 is the recommended choice over the now-retired MKR1000.
How many GPIO pins and hardware interfaces does the board have?
The board exposes 8 digital I/O pins (D0–D7), 7 analog input pins (A0–A6), and 1 analog output pin (DAC on A0). Of those, 13 pins support PWM output and 10 support external interrupts. Hardware serial peripherals include 1× UART, 1× SPI, and 1× I2C. All I/O operates at a strict 3.3 V — applying 5 V signals to any pin without a level shifter will permanently damage the SAMD21. Each pin can source or sink up to 7 mA.
Is the MKR WiFi 1010 suitable for beginners or is it aimed at advanced users?
The board suits both, though with different caveats. It uses the familiar Arduino IDE and C++ syntax, so anyone comfortable with Uno-based projects can pick it up quickly. Beginners should note the 3.3 V I/O limitation — this is the most common source of damage for those coming from 5 V Uno projects. Learning on a Uno or Nano first, then migrating to the MKR WiFi 1010 for wireless features, is a well-worn path. Advanced users benefit from the ATECC508 crypto element, low-power sleep modes, and MKR shield ecosystem that make production-grade IoT prototyping viable.
What is the most common mistake people make with this board?
The most damaging mistake is connecting 5 V sensors or shields directly to the MKR WiFi 1010's I/O pins. Unlike the Uno, the SAMD21 is explicitly NOT 5 V tolerant — a single 5 V signal on a pin can permanently destroy the chip. Always use a bidirectional logic level converter when interfacing with 5 V peripherals. The second most common issue is forgetting to update the NINA-W102 firmware before use; outdated radio firmware causes intermittent Wi-Fi connection failures that are routinely mistaken for software bugs in the sketch.
Where can I find documentation, community support, and firmware updates?
Official getting-started guides and hardware documentation live at docs.arduino.cc/hardware/mkr-wifi-1010. The NINA-W102 firmware updater is accessible inside the Arduino IDE under Tools → Firmware Updater. Community troubleshooting threads and project examples are on the Arduino Forum under the MKR WiFi 1010 category. The official product datasheet (SKU: ABX00023) is downloadable as a PDF from Arduino's documentation site. For library changelogs and bug reports, refer to the WiFiNINA and ArduinoBLE repositories on GitHub under the arduino-libraries organisation.
