Servo - May 2015

SERVO 05.2015 21

• SF10-A Laser Range Finder - 25 m • SF10-B Laser Range Finder - 50 m • SF10-C Laser Range Finder - 100 m The sensor outputs data in several convenient communication protocols: serial, I2C, or analog voltage. Each sensor is in the same form factor, so Parallax will produce a high quality aluminum mounting bracket that can be used on UAVs, quadcopters, and robots.

To use, simply hook them up to Lightware’s terminal program or Parallax’s serial terminal using a micro USB cable. Or, use a microcontroller as a serial pass-through device. To access the SF10’s analog output, you only need to know that 2.56V is the voltage for the sensor’s maximum distance.

For the SF10-C 100 m laser: (100m)/( 2.56V) = 39.06 m/V If you read a voltage, 0.18V: ( 39.06 m/V)(0.18 V) = 6.88 m Complete code listings are coming for the Propeller, BASIC Stamp, and Arduino for each sensor.

ELEV- 8 Quadcopter Products

The ELEV- 8 Quadcopter RC aircraft also from Parallax is ideal for first-time multi-rotor flyers and experienced aviators alike. The complete kit includes the HoverflyOPEN Flight Controller powered by Parallax's open source Propeller 1 multicore microcontroller. A "No Flight Controller" version is also available for use with a different flight controller.