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====== Multi-ranger deck ======
The multi-ranger deck gives Crazyflie 2.0 the ability to sense the distance to objects around it with mm precision, up to 4 meters away. It contains 5 VL53L1X ranging sensors facing the front, left, back, right and up. When used together with the Flow deck the Crazyflie 2.0 can autonomously move around and avoid obstacles.

===== Specification =====
  * 5x [[http://www.st.com/en/imaging-and-photonics-solutions/vl53l1x.html|VL53L1x]] ToF sensor to measure distance up to 4 meters
  * PCA9534 I2C GPIO expander to stage VL53 sensor startup
  * 1-wire memory for automatic expansion deck detection
  * Designed for mounting above the Crazyflie 2.0
  * Mechanical specification:
      * Weight: 2.3g
      * Size (WxHxD): 35x35x5mm

===== Schematic =====

  * {{ :projects:crazyflie2:expansionboards:multi-ranger.pdf |Multi-ranger schematic Rev.E}}
  * {{ :projects:crazyflie2:expansionboards:multi-ranger-daughter-board.pdf |Multi-ranger daughter board schematic Rev.E}}