CBL Demo program group that includes sample programs for Motion, 

Temperature, and Sound.  Programs mentioned in Eightysomething.





CBL Motion Demo 

1. Connect ultrasonic motion detector to SONIC channel.  Make sure 

connector is pushed all the way into CBL unit.  Note: If you have a an 

adapter for the motion detector - plug one end of the adapter into the 

detector first, then the other adapter end into the CBL. 

2. Plug in AC adapter. (No batteries are in the prototype units) 

3. Plug one end of the calculator link cable into CBL and the other end 

into the calculator.  IMPORTANT: Be sure to plug the end of the provided 

unit-to-unit cable that has had the plastic cut back so that the gold is 

exposed into the CBL end.  This is necessary because the I/O port of the 

mock plastic CBL case is not sized properly. 

4. Run program called CBL. 

5. Select (1) for MOTION. 

6. Select (2) for MOTION(RLTIME) for a real-time motion experiment. 

7. The motion detector will measure distance between .5 meters (1.5 

feet) and 6 meters (18 feet).  Do not get closer than .5 meters to the 

detector, or it will not read correctly. 

8. Hit enter when ready to start graphing motion. 

9. Move directly in front of the motion detector to graph your distance 

from the detector versus time on the calculator, real-time.  The program 

will continue collecting data for approximately 10 seconds. 

10. After graph is complete, wait for pause bar in upper righthand 

corner of calculator display and then hit enter to view plot options.  

The distance and time data are now stored on the calculator in lists L4 

and L2, respectively. 

11. A. Select (1) to plot distance-time data so that it can be traced as 

a stat plot, OR 

      B. Select (4) to perform smoothing on the velocity data and then 

(2) to display the velocity-time plot or (3) to display both the 

distance-time plot and velocity-time plot. 

 

If you want to get back to the PLOTS menu after graphing a plot, return 

to the home screen and re-run the CBL program and select (5) for PLOTS.  

Note that velocity data is stored in list L5. 

 

 

Distance-Time match 

1. Follow steps 1-5 above. 

2. Select (3) for D-T MATCH 1 or (4) for D-T MATCH 2 

3. Hit enter at the prompt and a graph will be displayed.  The point of 

the distance-time match is to try to walk and match the graph displayed. 

4. Hit enter when ready to start graphing your motion to fit the graph. 

 





Temperature Demo 

1. Connect temperature probe (with attached adapter) to CH1 on the CBL 

unit.  Make sure connector is pushed all the way into CBL unit. 

2. Follow steps 2-4 of first demo above. 

3. Select (3) for Temperature. 

4. Enter 1 to specify collection of 1 sample per second.  (I know 1 

works, I can't guarantee anything else on this prototype!) 

5. Hit Enter when ready to start collecting data.  The program will 

collect temperature data for 99 seconds and store the collected data 

into L4.  The time data is stored in L2. 

6. When graph is complete and pause indicator is displayed in the upper 

righthand corner of the display, hit enter to view Plot Options. 

7. Select (6) to plot temperature vs. time as a stat plot. 

 

 

Sound Demo 

1. Connect microphone probe (with attached adapter) to CH1 on the CBL 

unit.  Make sure connector is pushed all the way into CBL unit. 

2. Follow steps 2-4 of first demo above. 

3. Select (4) for Sound. 

4. Tap the 256 Hz tuning fork on one edge with the hammer.  You should 

hear it ring.  Place the tuning fork VERY close up to the microphone.  

After about 1 second, hit the Enter key.  The program will collect sound 

data (voltage) for 99 milliseconds at 1 millisecond intervals and store 

the collected data into L5.  The time data is stored in L2.