Behavior Board

Key Features

• 3 peripheral ports for plug-and-play peripherals.
• Hardware-timed pulses for all digital outputs and PWM for the four digital outputs on the Output connector.
• Support for camera triggering, servo motor control, and quadrature encoder counting on selected digital outputs.
• Configurable LED drive current (up to 100 mA) and RGB LED driver.

Specs

• Analog inputs: 2 (0–5 V, 12-bit, sampled at 1 kHz)
  • 1 on the ADC connector
  • The second analog input on the Input connector is available on hardware v2.0 or later
• Digital inputs: 4 (5 V)
  • 3 on the peripheral ports, accessible with the Breakout board
  • The fourth digital input on the Input connector is available on hardware v2.0 or later
• Digital outputs: 7 (5 V)
  • 4 on the Output connector
  • 3 on the peripheral ports, accessible with the Breakout board
• Digital output pulse duration: 1–65535 ms (supported on all digital outputs)
• Digital output PWM: 1–10000 Hz, duty cycle 1–99% (supported on the Output connector only)
• Peripheral ports: 3 (RJ45)
  • For the Mice Poke, Rotary Encoder, or Breakout board
• LED outputs: 2 (2–100 mA drive current)
• RGB LED outputs: 2 (WS2812-type addressable LED connector, driven as a serial chain)
• Camera triggers: 2 (DO0/DO1, 2–600 Hz)
• Servo outputs: 2 (DO2/DO3)
• Quadrature encoder inputs: 1 (P2, sampled at 1 kHz)
• Timestamp resolution: 32 µs
• Synchronization frequency: 1 Hz
• Synchronization accuracy: 22 ± 16 µs (between clock generator and this device)

Hardware

Version	Notes
2.1	Changed USB connector from Mini-B to USB-C
2.0	Added an input connector with an extra analog input and digital input.
1.1	Initial version

Firmware

Version	Notes
3.3	Fixed the read function of the digital inputs register
3.2	Add limits to ServoMotor registers Create displacement reading option for quadrature encoder.
3.1	Support for hardware 2.0 Added serial timestamp registers
3.0	Initial version

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Last updated with:
Hardware v2.1
Firmware v3.3
Bonsai Package v0.2