Motherboard Module 2 (MBM2)
Pumpkin, Inc.
1 GHz ARM Cortex-A8 Linux on-board computer module for CubeSats with 4.5× UARTs, I2C, SPI, Ethernet, RS-422, and 104-pin CubeSat Kit bus.
Typed specifications50 values
Discloses 7 of 13 fields engineers filter by in this category (category median 5).
- Processor
- Hosts COTS BeagleBone Black (BBB) Rev C single-board computer as a CSK-compatible module datasheet p.3
- Mass
- 34 g datasheet p.8
- Envelope (L×W×H)
- 96mm W x 90mm L datasheet p.8 96 (PCB width) x 90 (PCB length) x 1.6 (PCB thickness) components up to 11 mm above PCB, 3.5 mm below PCB
- Operating system
- Custom Linux-based image datasheet p.1 Linux custom Linux-based image on BBB | Pumpkin's flight software (FSW) SupMCU service
- Supply voltage
- 5 V nom. · BBB operates · datasheet p.7 5 V +5V_SYS | 6 V max · maximum external dc voltage on +5V_SYS or to P1 on BBB | 5 V nom. · system
- Power consumption
- 1.5 W With BBB, Ethernet disabled · datasheet p.10 1.75 W With BBB, Ethernet enabled | 0.05 W without BBB
- Data interface
- Ethernet datasheet p.1 I2C 1x I2C on CSK Bus Connector | SPI 1x SPI on CSK Bus Connector | UART 4.5x UART on CSK Bus Connector | GPIO 6x GPIO on CSK Bus Connector +12
- Operating temperature
- -40–85 °C TA, absolute maximum ratings · datasheet p.8
- Processor architecture
- other BeagleBone Black; applications target armv7-unknown-linux-gnu… · datasheet p.3
- Board format
- CubeSat Kit bus for use with 104-pin CubeSat Kit Bus · datasheet p.1 PC/104 PC/104-size footprint; corner hole pattern matches PC/104 | PC/104
- Flight software support
- Pumpkin FSW SupMCU service (Rust) with GraphQL endpoint; drivers for BBB and MBM2 peripherals; Python 3.10.9 and Perl 5.34 pre-installed; systemd; Pumpkin GUTS FSW available separately datasheet p.3 Python & Perl
- Radiation and fault mitigation
- latch-up protection (current limiting) independent latchup (device overcurrent) protection on critic… · datasheet p.1 hardware watchdog on-board -RESET & OFF_VCC-driven WDT interface | hardware watchdog
- Connector
- Stackable 104-pin CubeSat Kit Bus connectors H1/H2 (H-2X26-F); Omnetics BiLobe 25-pin PHY connector J263 (A29100-25); 6-pin Hirose DF13 header J133; 4-pin FPC connector J132 (UART0 breakout) datasheet p.16
- Satellite class
- CubeSat CubeSat nanosatellites, SUPERNOVA nanosatellites · datasheet p.1
- GPIO lines
- 5 5x GPIO on 6-pin DF13 connector · datasheet p.1 6 6x GPIO on CSK Bus Connector | 5 | 5 | 1
- Data interface speed
- 20 Mbps PHY RS422/RS485 transceivers TI SN65HVD73 · datasheet p.6
- Analog inputs
- 7 7x analog input (0-1.8Vdc) on CSK Bus Connector · datasheet p.1
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier12 lines, in the manufacturer's own wording
- Processor
- 1 GHz ARM Cortex-A8 (BeagleBone Black)
- Operating system
- Linux
- Programming languages
- C, C++, Python, Perl, Rust
- Uarts
- 4.5×
- Gpio
- 6×
- Interfaces
- I2C, SPI, USB host/device, RS-422, LVTTL PHY
- Ethernet
- 10/100 Mbps
- Storage
- SPI SD card
- Rtc
- Battery-backed
- Module height
- 15.24 mm (0.600 in)
- Bus
- 104-pin CubeSat Kit bus
- Status
- Flight Qualified / Space Proven
About
The Pumpkin MBM2 (Motherboard Module 2) is the primary on-board computer for the Pumpkin CubeSat Kit and SUPERNOVA bus ecosystems. It runs a 1 GHz ARM Cortex-A8 processor (BeagleBone Black) under Linux, providing a familiar software development environment for CubeSat flight software in C, C++, Python, Perl, and Rust.
The module provides 4.5× UARTs, 6× GPIO, I2C, SPI, USB host and device, 10/100 Mbps Ethernet, RS-422, and an LVTTL PHY. Onboard storage uses an SPI SD card with a battery-backed RTC and watchdog timer for reliability. The MBM2 plugs into the standard 104-pin CubeSat Kit bus and has a height of 15.24mm (0.600 inches). This module is flight-qualified and space-proven.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.