Bicolor LED and Servo

chasing

Is it possible to use a bicolor LED to show the direction a servo is moving on a BOE with a BS2? I've used regular red LEDs to show if a servo was moving in my BOE-Bot projects, but that didn't differentiate between clockwise and counter clockwise movement; only off and on. Would I have to write two separate subroutines (one for clockwise and one for counterclockwise) or can I just use 'IF THEN" statements? Any suggestions would be appreciated.

Britannicus

I'm not an expert, but I would have thought you could do this simply enough by adding a High and Low statement after your pulsout statement - this would use up 2 aditional ports though - you're going to have to write a line for your pulsout to define which directoin you are going to turn anyway

so something like this to wag from side to side ? connect the LED to 12 and 13
Do
pulsout 14, 350 ' moves your servo to the right
pause 20

high 13 ' shows on bicolour
low 12
pause 500

pulsout 14, 1150 ' moves your servo to the left
pause 20

low 13 ' shows the other bicolour ' reverses circuit
high12
pause 500

loop

erco

Or integrate them with your pulsout loops:

(connect the LED to 12 and 13)

direction 1: FOR B0=1 TO 100' one direction, varies by servo
pulsout 14, 500' min value
high 12
pause 20
low 12
next

direction2: FOR B0=1 TO 100' other direction
pulsout 14, 1000' max value
high 13
pause 20
low 13
next

goto direction1' repeat

chasing

Thank you very much. After I posted (and slept) I realized the code would look something like what you both posted.

erco

Slow motion is even better:

direction 1: FOR W0=500 TO 1000 step 50' one direction, varies by servo
pulsout 14, W0' min value
high 12
pause 20
low 12
next

direction2: FOR W0=1000 TO 500 step 50' other direction
pulsout 14, W0' max value
high 13
pause 20
low 13
next

goto direction1' repeat