Good+Engineering+Practices+Part+1

=Try It functions – ensuring all electronic components work //before// building a robot=

Disconnect any of the sensor attachments on SuRRy. We want to begin with only the base robot. Next find the **Try Me** icon on the NXT brick (see picture below). Select it.

We are going to run through a series of steps to ensure all motors and sensors work properly. Please do the following: 1) Disconnect Motor B from Port B and connect it to Port A. 2) Scroll on the NXT Brick until you find **Try-Motor**. Run the program. Spin the wheel attached to this motor. If the sound changes the motor is working properly. To abort this program, hit the small grey rectangle on the NXT brick. 3) Reconnect Motor B so it is once again connected with Port B. 4) Do the same thing for the motor currently connected to Port C. If the motor causes the sound to change it is working properly and you can reconnect it to Port C.  5) Connect the Touch Sensor to Port 1.  6) Move back to the original Try Me menu that has all the program options (push the grey rectangle to do this). Then scroll until you find the **Try-Touch** program. Select it. Run it. 7) While viewing the LCD, push the button on the touch sensor. If the face says something to you, the touch sensor works fine. 8) Disconnect the Touch Sensor from Port 1. 9) Connect the Sound Sensor to Port 2. 10) Place the robot on the ground. It is important that the robot not be on a table top. 11) Move back to the original Try Me menu. Then scroll until you find the **Try-Sound** program. Select it. Run it. 12) Speak softly and then loudly into the sound sensor. If the robot moves different speeds then the sound sensor works fine. 13) Disconnect the Sound Sensor from Port 2. 14) Move the robot back to a table top and connect the Light Sensor to Port 3. 15) Move back to the original Try Me menu. Then scroll until you find the **Try-Light** program. Select it. Run it. 16) Keeping the light sensor approximately the same height away from the paper (about 3 cm or so), move the sensor along the Color Palette below. Do the same thing along the Greys Palette. If the sound changes as you move from color to color and from different shades of grey, the Color Sensor works properly. 17) Disconnect the Color Sensor from Port 3. 18) Connect the Ultrasonic Sensor to Port 4. 19) Move back to the original Try Me menu that has all the program options (grey rectangular button). Then scroll until you find the **Try-Ultrasonic** program. Select it. Run it. 20) Without touching the sensor, put your hand it front of it. Then slowly back it away. If the sound changes pitch as you move your hand away the Ultrasonic Sensor works fine. 21) Disconnect the Ultrasonic Sensor from Port 4.

Color Palette/ Greys Palette

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