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RDDRONE-BMS772
bms6.0-11.0
bms6.0-11.0bms5.0-10.1bms4.0-10.1bms3.6-10.0bms3.4-9.1
bms6.0-11.0
bms6.0-11.0bms5.0-10.1bms4.0-10.1bms3.6-10.0bms3.4-9.1
  • Introduction
  • Disclaimer - CAUTION WARNING
  • Check for updated code immediately
  • Known areas for change or alignment
  • Board User Guide
    • Getting to know the hardware
      • Board overview
      • Board features
      • Board block diagram
      • Board organization
      • Board components
    • Characteristics of the RDDRONE-BMS772 board
    • Getting started with the RDDRONE-BMS772
      • Kit content
      • Required equipment and software
      • Configuring the hardware
        • Cell Terminal Connections
      • Start-up checklist
      • Flashing firmware to the RDDRONE-BMS772
      • Accessories and tools for development
      • Using the command line interface (CLI)
      • Get the CyphalCAN messages with the UCAN board
      • How to use the SW emergency button / kill switch / cut off
      • DroneCAN
  • Software guide - NuttX
    • Introduction
    • Software block diagram
    • BMS application state machine
    • Task priorities
    • Realization
    • First time software configuration of the BMS
    • First start-up messages
    • Command Line Interface (CLI)
    • Display
    • CyphalCAN
    • How to enable the battery temperature sensor
    • Charging with the BMS
    • Parameters of the BMS
    • How to use SMBus (I2C peripheral)
    • How to use NFC
    • How to get access to the BCC (BMS IC) safety library.
  • Software guide - bare metal and other
    • Battery Cell Controller (BCC) drivers
    • Model-Based Design Toolbox MBDT MATLAB Simulink coding
  • Software guide - PX4
    • Introduction
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  1. Board User Guide
  2. Getting started with the RDDRONE-BMS772

How to use the SW emergency button / kill switch / cut off

This page is dedicated on how to use the SW emergency button / kill switch / cut off button.

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Last updated 3 days ago

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Add the emergency button / kill switch (Normally Closed, NC) to J21 pin 6 and pin 8 (GND) like in the picture below.

In the SW, please configure it to be an emergency button with: “bms set emergency-button-enable 1”.

This will enable the pull-up resistor on MCU pin PTE8. When the emergency button is pressed, the connection to ground is broken and the pin will be high. This will generate a SW emergency stop and the BMS state machine will go to the FAULT state.