pwm voltage?

[pandimus]

I thought i read somewhere that pwm voltage should be between 0-10vdc. now i was trying to figure out how to make it 5v max, and couldnt find anything. Then i went and rechecked the products page and it says 10vdc. Can it be adjusted and how? i am assuming i can code it to make maximum 50%. I am talking about straight from the relay box. not the expansion.

thanks
Johnny

[lnevo]

You can use the map function.

http://arduino.cc/en/Reference/map

[rimai]

You will need to remove the booster from the relay box and solder some jumper wires.
Even at 50%, the signal is still 0-10vdc, with 50% duty cycle.

Sent from my Galaxy S3 using Tapatalk 2

[pandimus]

You will need to remove the booster from the relay box and solder some jumper wires.
Even at 50%, the signal is still 0-10vdc, with 50% duty cycle.

Sent from my Galaxy S3 using Tapatalk 2

just jumper it straight across where the pins used to be? or is there an order?

[rimai]

You need to remove lm358 and resistors.
Then, connect the in to out with jumper wires

Sent from my Galaxy S3 using Tapatalk 2

[pandimus]

Will do thanks.

[lnevo]

I guess it was more involved than i thought sorry

[pandimus]

Not a problem at all.

[pandimus]

Easy mod.just De solder like said then connect jumpers from + volts in to out on both sides of the lm358...Thanks

[mls228]

I have my relay box open now. Can you guys describe in terms of pins what to do? Thanks!

ImageUploadedByTapatalk1366572835.555357.jpg

[rimai]

Jumper 1 and 3 together and 5 and 7 together.

[mls228]

You need to remove lm358 and resistors.
Then, connect the in to out with jumper wires

Sent from my Galaxy S3 using Tapatalk 2

Sorry to ask again. "Measure twice, cut once."

I'll remove R19, R20, R21, R22 and the LM358 (IC1), then jumper as described. Correct?

ImageUploadedByTapatalk1366592824.818989.jpg

[rimai]

Yes.

[baroutas]

Roberto if i want change the actinic port from 0-10 to PWM and oposite what must do or remove?

[rimai]

Unless you have one of the latest board revisions (rev 8.1), it will be very hard for you to do this.

[baroutas]

How can i see that? I order my RA Noveber 2012.

[rimai]

Opening the box, but I'm almost positive the rev 8.1 wasn't around at that time.

[baroutas]

ok!!!Thanks Roberto!

[mls228]

Life got in the way but 8 months later I made this change and it works perfectly. Thanks Roberto.