This is the PocketBeagle USB Key Fob mini Computer match to Raspberry Pi Zero. PocketBeagle is an ultra-tiny open-source development board runs Linux operating system with dependability. The PocketBeagle driven by Octavo System OSD3358-SM a system-in-package that includes 512MB DDR3 RAM. The PocketBeagle has TIAM335 ARM Cortex A8, 1GHZ Clock, 1GB DDR3 Main Memory, 4K EEPROM, 72 expansion pin header with power and battery IOs, high speed USB, 8 analog inputs, 44 digital Input/Outputs, digital interface peripheral, microUSB host/client and microSD connectors.

Features

Texas Instruments® Sitara™ AM3358 Processor

1GHz ARM® Cortex-A8 with NEON Floating–point Accelerator
SGX530 Graphics Accelerator
2x programmable real-time unit (PRU) 32-bit 200MHz MCU w/d single-cycle IO latency
ARM® Cortex-M3 (power and security management)

Memory

512MB DDR3 800MHZ RAM (Integrated into OSD3358-SM)
4kB I²C EEPROM (Integrated into OSD3358-SM)
SD/MMC Connector for microSD Card

Compatibility

Debian GNU/Linux images modified for BeagleBone
Cloud9 IDE on Node.js w/d BoneScript library
BeagleBone Black (software not needing access to unavailable expansion pins)

Connectivity

High Speed USB 2.0 OTG (host/client) Micro-B Connector
Bootable microSD Card Slot (MMC0)

Power Management

TPS65217C PMIC (Used along with a separate LDO to deliver power to the system) (Integrated into the OSD3358) with integrated 1-cell Li-Po battery will support.

Debug Support

JTAG test points
GDB (Other monitor-mode debug)

Dimensions

55x35x5mm

Power Source

microUSB connector
Expansion Header (3 options: battery, VIN or USB-VIN)

Expansion / Pin Header

High-speed USB 2.0 OTG (host/client) control signals (USB1)
8 Analog Inputs with 6 at 1.8V and 2 at 3.3V along with 1.8V voltage references
44 digital GPIOs Accessible with 18 enabled by default including 2 shared with the 3.3V analog input pins
3 UARTs accessible with 2 enabled by default (UART0, UART4)
2 I²C busses enabled by default (I²C1, I²C²)
2 SPI busses with single chip selects enabled by default (SPI0, SPI1)
4 PWM outputs accessible with 2 enabled by default (PWM0A, PWM1A)
2 quadrature encoder inputs accessible
2 CAN BUS controllers accessible
23 programmable real-time unit (PRU) 32-bit microcontroller I/O pins including options for the PRU UART and eCAP accessible with 7 I/O pins enabled by default for PRU0 and 1 enabled by default for PRU1 xi.3 voltage inputs with 1 for battery, 1 shared with the USB connector and 1 for power-line input and a battery temperature sense input
2 voltage outputs, 1 with a 3.3V LDO and 1 with switch from voltage input
Power and reset button I/O’s

User Input / Output

Power Button with press detection interrupt via TPS65217C PMIC (hold for 10s to initiate hardware power cycle)

PocketBeagle Official Source Code and Source File > https://github.com/beagleboard/pocketbeagle
Official Site > https://beagleboard.org/pocket

PocketBeagle Schematics Diagram | PDF

The PocketBeagle USB-Key-Fob Mini Computer