Using sensors effectively allows the robot to understand itself and the world around it and is critical for building effective robots.
See: [http://www.citruscircuits.org/uploads/6/9/3/4/6934550/roborio_and_sensors.pdf overview from team 1678] 

* Closed Loop Control
  * [http://www.controleng.com/single-article/understanding-pid-control-and-loop-tuning-fundamentals/61530560e8cf5044c7291bda7e44b655.html PID]
* Understanding sensors
  * [https://www.sparkfun.com/tutorials/223 Datasheets] and [https://rheingoldheavy.com/how-to-read-a-datasheet/ also see here]
  * [wiki:Sensors/AppNotes Application (App) Notes]
* Interfacing with sensors
  * Digital GPIO [https://www.raspberrypi.org/documentation/usage/gpio/ on the Raspberry Pi]
  * Analog interfaces
  * SPI
  * [https://github.com/MDHSRobotics/TeamWiki/wiki/Understanding-the-RoboRio-to-I2C-Interface-Design I2C]
  * Asynch Serial
  * RS485
  * CAN Bus
  * Ethernet
  * [https://forums.ni.com/t5/FIRST-Robotics-Competition/roboRIO-MXP-Developer-s-Guide/ta-p/3532923 MXP port] (esp. for [http://www.pdocs.kauailabs.com/navx-mxp/ NavX])
* Mounting sensors
  * 3D printing
  * McGyvering