Ingredient
BeagleBone Black
Also known as: BBB, BeagleBoard
ARM Cortex-A8 single-board computer with a defining feature most SBCs lack: two onboard 200 MHz Programmable Realtime Units (PRUs) that execute deterministic timing-critical code in parallel with the Linux CPU. Run Debian or Yocto Linux on the main processor while the PRUs handle precise stepper-motor pulses, fast sensor reads, or real-time control loops. The right ingredient when industrial-grade real-time control matters — CNC-style farm robots, fast multi-stepper machines, signal-processing tasks where Linux jitter is unacceptable. Less popular than RPi but unmatched for its niche.
Inputs / outputs
- CPU: ARM Cortex-A8 1 GHz, 512 MB DDR3
- PRUs: 2× 200 MHz 32-bit RISC, deterministic, single-cycle GPIO access
- GPIO: 65 pins, 3.3V logic
- Storage: 4 GB onboard eMMC + microSD
- I/O: Ethernet, USB host, USB-mini for power+programming
- Power: 5V/2A, ~3W typical
Solves / unlocks
- Multi-axis CNC and 3D-printer-style farm machines ([[farmbot-genesis|FarmBot]], seed-planters, drilling jigs)
- Real-time PID control loops at >10 kHz
- Precise multi-channel PWM for synchronized motor control
- Industrial-protocol gateways (Modbus, EtherCAT, CAN) where Linux + PRU split the work
- Sensor sampling at MHz rates impossible on a Pi
Constraints
- Smaller community than RPi — fewer tutorials, libraries, and pre-baked recipes
- Older CPU — Cortex-A8 is single-core; not suitable for vision or ML
- PRU programming is its own learning curve (assembly or PRU-C)
Source
- Project: https://www.beagleboard.org/boards/beaglebone-black
- Cookbook: https://github.com/derekmolloy/exploringBB
- LinuxCNC port: https://www.machinekit.io/
See also
Auto-generated from this entry’s typed relations: frontmatter, grouped by relation type so the editorial signal isn’t flattened.
- Parallels: [[raspberry-pi]]
- Member of: [[ingredient]]
- Combines with: [[stepper-motor]] · [[farmbot-genesis]] · [[ros2]]
What links here, and how
Inbound connections from across the wiki, grouped by lens and by relationship. These appear automatically — every entity page declares what it links to, and that data populates here on the targets.
Practical
contains
- Farm-tech toolkit compute / SBC with real-time PRUs for industrial control
combines with
- FarmBot Genesis early FarmBot Genesis versions used BeagleBone Black; current uses RPi
- Stepper motor BBB PRUs generate jitter-free step pulses for multi-axis machines
parallels
- Raspberry Pi BeagleBone competes for industrial-control roles where its real-time PRUs matter
4 inbound links · 5 outbound