At a glance
Combine Brainboards with Power-5 or Power-7 boards into any size stack
Up to 600 LEDs per output — 2,000 to 3,000 LEDs per Brainboard
ESP32-WROOM-32UE with external antenna and LAN enable jumper
Power passes through the mounting posts — no wiring between boards needed
Custom DC-DC circuit with 3x 800mA 3.3V LDO for extra stability
Dedicated relay output terminals plus 2x input button/switch terminals
Known issue: IC failures at 24V (current revision)
On the current board revision, a specific IC can fail when powered at 24V. Not all boards are affected and the failure rate is low. For this specific failure only, warranty coverage is extended to 1.5 years — standard warranty terms still apply to everything else.
- If your board has died from this issue: fill in this form and we'll ship a replacement once available.
- Not sure? Join the Discord and we'll help diagnose it.
- Board working fine? No action needed — the replacement form is for failed boards only. If you'd like to be proactive, this mitigations & fixes guide covers mitigations you can apply to a running board to reduce the chance of failure.
- Planning to run at 24V? We recommend waiting for the new revision before buying.
Board specifications
- Based around Espressif ESP32-WROOM-32UE (ext. antenna only)
- Built-in WiFi + Ethernet
- SD card reader
- I2C connector (with optional I2C temp and humidity sensor)
- 3x simultaneous power-in connections
- Dedicated relay output terminals
- 2x input button/switch terminals
- Boot/Reset buttons available
- 5x M2.5 board mounting holes
- uFL pigtail and antenna stick included
LED features
- 8x level-shifted LED data output channels
- Level-shifted using 2x 4-port level-shifters to 5.12V
- All terminals pluggable to simplify management when stacked
- Per-channel resistor DIP switches — defaults to 249Ω, switchable to 33Ω for better compatibility with 3-wire cable setups
- "Hardware driven" using ESP32 RMT device channels
Special features
- Compatible with QPowerPost (power distribution without wires)
- Custom DC-DC circuit: 5V-24V in, always 5.12V out
- 3x 800mA 3.3V LDO onboard for extra stability
- LAN enable jumper
- MOSFET based relay circuit
Videos on the Dig-Octa System
Guides & tutorials
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Power supply
We always suggest Meanwell power supplies — very reliable, and they actually give you the power they state.
Misc. accessories
We sell a variety of accessories to help with your install and make water-tight connections.
Split Braided Loom
Self-closing braided loom for tidy, protected cable runs. Available in multiple sizes.
Shop Split Loom
Adhesive Lined Heat Shrink
Dual-wall, adhesive-lined heat shrink for water-tight connections. Available in multiple sizes.
Shop Heat Shrink
