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[Groundloop]

@groundloop

I just finished testing the board.

I put 2 Leds with their respective resistors on the three way connector.
One was a green led, the other a big hat led (it was what I had available)

They worked well for a few minutes then they just stop working. First the green one, then the big hat. I checked with my led checker and they are blown.

Before this happened I press the number 5 to put the program on auto run, then I tried the number seven to see if it increased the frequency and it had no visible increase on flashing speed.

I tried a couple of times hitting number 8 to decrease the speed and it also does not decrease the speed of flashings.

Suddenly the green one stop working, the big hat followed after a few seconds.

Jesus

Jesus,

Did you connect the two LEDs as shown in the attached drawing?
Also, was the two resistors 330  Ohm?

Groundloop.

[nievesoliveras]

@groundloop

I connected it just like that.

Before I throw any part to the gabage can, I check it.  I did so with the Leds and found that they are still working but barely visible.
I fear that the optocoupler behave the same way when I get it from the supplier. It has a led inside.

So maybe it is better to use the board with some mosfets or 2n3055 instead.

Jesus

[Groundloop]

@groundloop

I connected it just like that.

Before I throw any part to the gabage can, I check it.  I did so with the Leds and found that they are still working but barely visible.
I fear that the optocoupler behave the same way when I get it from the supplier. It has a led inside.

So maybe it is better to use the board with some mosfets or 2n3055 instead.

Jesus

Jesus,

I find it very hard to belive that the small 5 volt output from the PIC can damage
LEDs if you used 330  Ohm resistors in series with each LED and connected
like in my last drawing. 5 Volt / 330 = 15mA. Normal LEDs can handle approx. 20mA.

Did you check if the 9 volt battery went dead?

Does the on-board withe LED still work?

It is not a problem to use opto couplers on a PIC as long as the series resistors
is correct in value.

Groundloop.

[nievesoliveras]

The 9v battery is ok. The on board white led turns on steady when I press #1. It goes off when I press #2. If I press #3 it goes on steady again. If I press #4 It goes out again.

If I press #5 it begins to flash without stopping. If I press #6 it stops flashing.  If I press #5 then #7 nothing happens or if I press #5 and #8 nothing happens. (with #5 then #7 or #5 then #8 it keeps flashing at the same rate visually)

Jesus

[nievesoliveras]

I would like to know how to add a code that substract 10 from the timer value each time I press the #7 with an if/then to put the timer value to 10 if the timer value is less than 0.

Also I would like to add a code that adds 10 to the timer each time I press #8 with no upper limit.

Is that possible?

Jesus