PocketBeagle
Best ultra-compact computer for portable real-time hardware projects.
The PocketBeagle is an ultra-tiny, open-source Linux single board computer featuring a powerful 1GHz AM3358 processor and 512MB of integrated DDR3 RAM. Designed for portability, it fits in a pocket and offers extensive connectivity via 72 breakout pads. Key capabilities include multiple I2C, SPI, and UART interfaces, built-in hardware PWMs, 8 analog inputs, and 44 digital I/Os. It also incorporates two 200MHz PRUs for dedicated real-time processing tasks. Note that this board requires a microSD card for the operating system, as it lacks onboard storage.
$28.13
Owner Satisfaction
4.6
/ 5
Category Rank
407
/ 1545
#407 in Development Boards
Price vs Category Average
-68%
Below average
Processor
335818
/ Octavo Systems OSD (GHz ARM Cortex-A)
Who it's for
- Makers building space-constrained or wearable electronics
- Engineers needing powerful computing in a simplified footprint
- Developers leveraging established open-source software ecosystems
Who should skip it
- Designers creating battery-operated devices with strict thermal limits
- Users prioritizing fast boot times and integrated storage
- Beginners unfamiliar with Linux system administration
Performance breakdown
Form Factor
Unmatched portability for a fully functional Linux-based development environment.
Real-time Processing
Dual PRUs provide exceptional deterministic control for time-sensitive hardware tasks.
Connectivity Density
Seventy-two breakout pads offer impressive interface options for such a small footprint.
System Expandability
Reliance on external microSD storage limits boot speed and overall system robustness.
Analog Capability
Eight dedicated analog inputs make it highly capable for sensor-heavy projects.
Development Flexibility
Open-source architecture ensures complete control over hardware and software configurations.
Key Specs
Processor
Octavo Systems OSD3358 (1GHz ARM Cortex-A8)
RAM
512MB DDR3
I/O Pins
72 total breakout pads (44 Digital I/O, 8 Analog Inputs)
Dimensions
35.0 mm (W) x 55.0 mm (L) x 5.0 mm (H)
Weight
10.7 g
Storage Support
microSD card slot
Onboard Microcontroller
ARM Cortex-M3
Certifications
RoHS 2 Compliant
Features
- Ultra-tiny, pocket-sized Linux computer
- Includes two dedicated 200MHz PRUs for real-time tasks
- Rich peripheral set with multiple serial interfaces
- Features 8 analog input pins
- Powered by a 1GHz ARM Cortex-A8 processor
- Designed for openness and flexibility
- Native microUSB client connection included
- Supports battery power management
What customers say
Experienced developers and advanced hobbyists highly value the PocketBeagle for its ultra-compact form factor, achieved through the integrated System-in-Package. This design delivers high power density in a tiny footprint. Users especially appreciate the extensive I/O capabilities, offering unparalleled flexibility for complex projects. A key differentiator is the inclusion of Programmable Real-time Units, which are essential for applications needing precise, low-latency control. While the device presents a steeper learning curve than simpler boards, the consensus is that it offers exceptional performance and specialized features. For those needing maximum power in minimal space, the PocketBeagle provides outstanding value within its niche.
Know before you buy
No, the board does not have onboard storage. You will need to provide your own microSD card to install and run the Linux operating system.
The two 200MHz Programmable Real-Time Units (PRUs) are dedicated processors designed to handle low-latency, real-time tasks independently of the main ARM processor. They are ideal for applications requiring precise timing, such as motor control or high-speed data acquisition.
Yes, the board is designed with battery power management in mind, making it an excellent choice for portable or wearable projects.
The board features 72 breakout pads that provide access to various interfaces, including I2C, SPI, UART, and 44 digital I/O pins. You will need to solder headers or wires to these pads to connect your sensors and components.
While it is a powerful tool, it is best suited for users who have some experience with Linux and basic electronics. Because it uses breakout pads rather than standard headers, it requires some soldering skills to get started.
Yes, it includes 8 dedicated analog input pins, allowing you to easily interface with a wide variety of analog sensors and potentiometers.
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