Sensors

• Temperature sensor DS18B20
• Ultrasonic range sensor HC-SR04
• 9-degrees-of-freedom IMU MPU-9250
• Photodiodes for detecting light
• Reed switch for detecting the presence of a magnet (e.g., speedometer in bikes)
• Hall effect sensors for measuring magnetic fields
• Cameras
  • Raspberry Pi camera
  • Duo 3D cameras
  • Matrix Vision cameras
  • Orbbec 3D cameras
  • Stereolabs 3D cameras
  • Intel RealSense developer kits
• Shaft encoders for measuring angles of joints
• Wii Motion Plus Gyro for Raspberry Pi
• ADXL345 Accelerometer for Raspberry Pi
• Hokuyo UTM-30LX scanning laser rangefinder (LIDAR)
• Scanse Sweep inexpensive scanning (rotating) LIDAR
• LIDAR-Lite v2 by PulsedLight, LIDAR-Lite v3 by Garmin

Other

• Pixhawk flight controller with sensor deck, for multirotor UAVs