Component explanation of the Crazyflie 2.X

Top

Crazyflie top

  1. LED 1: Red/green LED used for heartbeat and low-battery indication
  2. LED 2: Blue LED fully lit when powered and blinking when bootloading
  3. LED 3: Blue LED fully lit when powered and blinking when charging
  4. LED 4: Red/green LED used to indicate radio communication
  5. Right expansion connector: The expansion port is used to connect expansion boards, either on the top and/or the bottom
  6. Left expansion connector: The expansion port is used to connect expansion boards, either on the top and/or the bottom
  7. Expansion board orientation indicator: This indicator should match the expansion boards
  8. User button: Push button used to power on/off the system. Hold down 3s while powering on to enter bootloader mode. Hold down 10s while powering to enter STM32F4 DFU mode.
  9. nRF51822: The nRF51822 micro controller
  10. **Mounting holes**: Can be used for mechanically mounting something to the platform. The holes are plated, can be grounded by soldering a bridge and are 2mm in diameter (with plating)

Bottom

Crazydlie bottom

  1. M1 connector: Motor 1 connector
  2. M2 connector: Motor 2 connector
  3. M3 connector: Motor 3 connector
  4. M4 connector: Motor 4 connector
  5. STM32F405 debug connector: Connector for debugging the STM32F405 using SWD. For easy access use our debug adapter kit.
  6. nRF51822 debug pads: Pads for debugging the nRF51822 using SWD. For easy access use our debug adapter kit.
  7. Expansion board orientation indicator: This indicator should match the expansion boards
  8. STM32F405 micro controller: The STM32F405 micro controller
  9. Right expansion connector: The expansion port is used to connect expansion boards, either on the top and/or the bottom
  10. Left expansion connector: The expansion port is used to connect expansion boards, either on the top and/or the bottom
  11. Mounting holes: Can be used for mechanically mounting something to the platform. The holes are plated, can be grounded by soldering a bridge and are 2mm in diameter (with plating)