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BlueBoard v1

The BlueBoard is a small form-factor "all-in-one" electronic board for 2 wheels robots.

BlueBoard functions

Features

The board features the following items:

  • Compact size: 10 cm x 10 cm
  • Single input power-supply (+14V min)
  • Integrated Power-Supplies for logic domains using efficient DC/DC step-down regulators:
  • +12V/1A (industrial sensors)
  • +5V/1A (quadrature encoders, other 5V logic)
  • +3/3V/1A (most of digital logic)
  • Integrated Power-Supplies for heavy loads:
  • +12V/3A (generic purpose)
  • +7.4V/3A (dynamixel digital servos ~ can be adjusted)
  • +5V/3A (analog servos)
  • Secure and robust Power-pack connector
  • Main ON/OFF + Emergency switch connectors
  • 2x Full H-Bridge output controls for DRV8842 (2.5A)
  • 8x Opto-coupled analog-servos interface (PWM)
  • 2x Connectors + 1x terminal for XL-320 digital servos interface
  • 2x Quadrature encoders inputs
  • 10x Opto-coupled Industrial sensor inputs (NPN/PNP types selectable)
  • 8x Digital Inputs
  • RS485 connector for sensor-bus (to be used with ProxTof boards or other)
  • UART with RTS/CTS signals
  • USB 2.0 OTG connector
  • ST-Link with SWD + SWO programming / debugging connector
  • Expander connector (to be used with microBoard_HMI):
  • 1x SPI
  • 1x CAN
  • 6x Digital inputs (user selections switches)
  • 1x Digital outputs

Troubleshooting

  • Mimimum input voltage (TEN / PTN modules) is high for 4S batteries (error due to 6S -> 4S design migration)
  • Not working 4S battery cell monitoring analog circuit (to be further checked)