# Freescale Freedom Board

> Single board computer

**Wikidata**: [Q31074983](https://www.wikidata.org/wiki/Q31074983)  
**Source**: https://4ort.xyz/entity/freescale-freedom-board

## Summary
The Freescale Freedom Board is a low-cost single-board computer designed for developing and prototyping embedded systems, produced by Freescale Semiconductor. Marketed under the alias FRDM-KL25Z, it serves as an accessible platform for students, hobbyists, and engineers. It features an ARM Cortex-M0+ processor and integrates USB connectivity for power and programming.

## Key Facts
- **Manufacturer**: Freescale Semiconductor.
- **Instance of**: Single-board computer.
- **Alias**: FRDM-KL25Z.
- **Image**: Available on Wikimedia Commons ([link](https://commons.wikimedia.org/wiki/Special:FilePath/Freescale_Freedom_Board_FRDM-KL25Z_(9067309993).jpg)).
- **Wikipedia Coverage**: Catalan language and Wikimedia Commons.
- **Wikidata Description**: "Single board computer."
- **Google Knowledge Graph ID**: `/g/11fx8l82wx`.
- **Sitelink Count**: 2.
- **Commons Category**: Freescale Freedom Board.

## FAQs
### Q: What is the Freescale Freedom Board used for?
A: The board is used for developing embedded systems, prototyping IoT projects, and educational purposes due to its affordability and ease of use.

### Q: What are the key features of the Freescale Freedom Board?
A: It includes an ARM Cortex-M0+ processor, USB interface for power and programming, and compatibility with Arduino shields for expanded functionality.

### Q: Is the Freescale Freedom Board still widely used?
A: While newer boards exist, it remains popular in educational settings and hobbyist communities for its simplicity and cost-effectiveness.

## Why It Matters
The Freescale Freedom Board played a significant role in democratizing access to embedded system development. By offering a low-cost, user-friendly platform, it enabled students and hobbyists to experiment with microcontroller programming without requiring expensive tools. Its integration of modern features like USB connectivity and ARM-based processing helped bridge the gap between beginner-friendly platforms (e.g., Arduino) and more advanced industrial systems. The board also fostered innovation in IoT and rapid prototyping, contributing to the growth of maker culture and educational initiatives in electronics engineering.

## Notable For
- **Energy-Efficient Processor**: Utilizes an ARM Cortex-M0+ core, optimized for low-power applications.
- **USB Integration**: Combines power delivery and programming through a single USB connection.
- **Arduino Shield Compatibility**: Extends functionality through third-party hardware expansions.
- **Affordable Development**: Positioned as a cost-effective alternative to proprietary development kits.
- **Educational Focus**: Widely adopted in classrooms for teaching embedded systems and programming.

## Body
### Development and Design
The Freescale Freedom Board was designed as a development platform for Freescale’s Kinetis series microcontrollers. Its primary model, the FRDM-KL25Z, features a 32-bit ARM Cortex-M0+ processor running at 48 MHz, alongside 128 KB of flash memory and 16 KB of RAM. The board emphasizes simplicity, with a form factor and pinout compatible with Arduino shields, streamlining hardware experimentation.

### Technical Specifications
- **Microcontroller**: MKL25Z128VLK4 (ARM Cortex-M0+ core).
- **Memory**: 128 KB flash, 16 KB RAM.
- **Interfaces**: USB, UART, SPI, I²C, PWM, ADC.
- **Power**: USB-powered (5V) with on-board voltage regulation.

### Software Support
Freescale provided a software development kit (SDK) with drivers, middleware, and example code. The board is compatible with IDEs like ARM’s Keil MDK, IAR Embedded Workbench, and open-source tools such as PlatformIO. It supports debugging via an on-board CMSIS-DAP interface.

### Applications and Community
The board gained traction in educational institutions for teaching embedded C programming and real-time system design. Its open hardware design and active community support encouraged collaborative projects, from robotics to home automation. Although Freescale Semiconductor merged with NXP in 2015, the board’s documentation and resources remain accessible, sustaining its use in legacy and budget-constrained projects.

### Legacy and Impact
While superseded by newer platforms like the Raspberry Pi Pico and ESP32 boards, the Freescale Freedom Board influenced the development of low-cost, ARM-based single-board computers. Its focus on energy efficiency and ease of use set a precedent for modern IoT prototyping tools, ensuring its relevance in discussions about accessible electronics education.