For Next Problem

bluejay

An LED is connected to a 220 ohm resistor to output 7. This code for a BS2 will increase brightness for the LED then repeat continously.

reps VAr Byte

main:
FOR reps = 1 TO 300 'increase LED brightness
PULSOUT 7, reps
DEBUG DEC ? reps
NEXT

To decreasebrightness the statement "FOR reps = 1 TO 300 " should be replaced by "FOR reps = -1 TO 0.

Could somebody please come up with a code that will include both FOR staments so that after the LED increases the maximun brightness the LED will immediately start decreasing it's brightness and continue the loop, or a better way of solving this problem?
I will appreciate a solution. Thanks

Mike Green

To decrease brightness, you need this instead of what you mentioned:

FOR reps = 300 to 1 step -1

To increase brightness, then decrease brightness, you need one loop to increase brightness followed by another loop to decrease brightness. You can put another loop (probably DO / LOOP) around the two FOR loops.

erco

FYI, your debug statement is seriously slowing down your program execution. If you want to change the timing and apparent brightness, comment it out with a leading apostrophe and run that program.