Some
electronics for the plotter
1.
Optical rotation-sensor
This optical rotation-sensor
returns a small value to the RCX, if the light from the LED
reaches the phototransistor. The range is about 5 in the case of
percent-mode. A routine should look something like:
###define RotationSensorValue = 1
AddOrSub = 2 {depends on the
direction; should be set for example when a motor changes his
direction}
BeginOfTask(Task_1)
loop(con,forever)
while(senval,sensor_1,GT,con,0) {loops until sensor-value becomes zero}
endwhile()
sumvar(rotationSensorValue,var,AddOrSub)
{or do
something else}
while(senval,sensor_1,LT,con,5) {loops until sensor-value becomes smaller than 5}
endwhile()
endloop()
endOfTask()
2. Simple
angle-sensor
This is our version of Mr
Sensor's angle sensor.
For further information: look at http://www.extremenxt.com/lego.htm
3. Three
touch sensor expander
see http://www.extremenxt.com/lego.htm
