# Arduino/Genuino 101

> single board computer

**Wikidata**: [Q26219924](https://www.wikidata.org/wiki/Q26219924)  
**Source**: https://4ort.xyz/entity/arduino-genuino-101

## Summary
The Arduino/Genuino 101 is a single-board microcontroller released in 2015 that features the Intel Curie module for Bluetooth Low Energy and 6-axis accelerometer/gyroscope capabilities. It measures 68.6mm × 53.4mm and operates at 3.3V with a 32MHz clock frequency. Part of the Arduino product family, it's designed for makers, educators, and developers working on IoT and wearable projects.

## Key Facts
- Released on October 16, 2015, as part of the Arduino/Genuino product line
- Features Intel Curie module with built-in Bluetooth Low Energy and 6-axis accelerometer/gyroscope
- Operates at 3.3V with a base clock frequency of 32MHz
- Dimensions: 68.6mm × 53.4mm (length × width)
- Manufactured by Arduino LLC, an Italian open-source hardware and software company
- Classified as both an open-source microcontroller and single-board microcontroller
- Has aliases including Arduino 101 and Genuino 101
- Official website: https://www.arduino.cc/en/Main/ArduinoBoard101
- Part of the broader Arduino product series with 76 sitelinks across platforms

## FAQs
### Q: What makes the Arduino/Genuino 101 different from other Arduino boards?
A: The Arduino/Genuino 101 features the Intel Curie module, which provides built-in Bluetooth Low Energy and a 6-axis accelerometer/gyroscope, making it ideal for IoT and wearable projects. It operates at 3.3V instead of the standard 5V found on many other Arduino boards.

### Q: What are the dimensions of the Arduino/Genuino 101?
A: The board measures 68.6mm in length and 53.4mm in width, making it a compact single-board computer suitable for embedded projects and wearable applications.

### Q: When was the Arduino/Genuino 101 released?
A: The Arduino/Genuino 101 was released on October 16, 2015, as part of Arduino's expansion into boards with built-in wireless capabilities and motion sensors.

## Why It Matters
The Arduino/Genuino 101 represents a significant evolution in the Arduino ecosystem by introducing Intel's Curie module, which brought advanced wireless and motion-sensing capabilities to the platform. This board bridged the gap between traditional microcontroller projects and the emerging Internet of Things (IoT) space, allowing makers and developers to create connected devices without requiring additional modules. Its built-in Bluetooth Low Energy enabled wireless communication for applications like fitness trackers, smart home devices, and remote monitoring systems. The 6-axis motion sensor opened up possibilities for gesture recognition, activity tracking, and motion-based control systems. As one of the first Arduino boards to feature these integrated capabilities, the 101 helped establish the foundation for more sophisticated IoT development within the maker community and educational settings, demonstrating how accessible hardware could incorporate advanced features previously found only in commercial products.

## Notable For
- First Arduino board to feature Intel's Curie module with integrated Bluetooth Low Energy
- Built-in 6-axis accelerometer/gyroscope for motion sensing without external components
- 3.3V operation voltage, distinguishing it from standard 5V Arduino boards
- Released as both "Arduino 101" and "Genuino 101" to accommodate different regional branding
- Compact form factor ideal for wearable and IoT applications

## Body
### Technical Specifications
The Arduino/Genuino 101 operates at 3.3V with a base clock frequency of 32MHz, powered by the Intel Curie module. This module integrates a Quark SE microcontroller with 384KB of flash memory and 80KB of SRAM. The board includes 14 digital input/output pins (of which 4 can be used as PWM outputs), 6 analog inputs, a micro USB connection, a power jack, and an ICSP header.

### Built-in Sensors and Connectivity
The Intel Curie module provides integrated Bluetooth Low Energy (BLE) connectivity, eliminating the need for external wireless modules. The 6-axis accelerometer/gyroscope combination enables motion detection, orientation tracking, and gesture recognition capabilities. These features make the board particularly suitable for fitness tracking, activity monitoring, and motion-controlled applications.

### Development and Compatibility
The Arduino/Genuino 101 is programmable using the Arduino IDE with special Curie-specific libraries for accessing the built-in sensors and Bluetooth functionality. It maintains compatibility with most Arduino shields and libraries, though users must account for the 3.3V operating voltage when connecting to 5V devices. The board supports the Zephyr RTOS, as documented in the Zephyr Project wiki.

### Applications and Use Cases
Common applications include wearable devices, fitness trackers, smart home controllers, remote monitoring systems, and educational projects teaching IoT concepts. The combination of wireless connectivity and motion sensing makes it ideal for projects requiring both data collection and transmission without external modules. Educational institutions use it to demonstrate concepts in embedded systems, wireless communication, and sensor integration.