# PWM and digital output

**URL:** https://forums.digi.com/t/pwm-and-digital-output/18303
**Category:** XBee & XBee Gateway
**Tags:** xbee, pwm, module, xbee-coordinator, xbee-api-mode
**Created:** [April 28, 2017, 3:17pm UTC](https://forums.digi.com/t/pwm-and-digital-output/18303 "2017-04-28T15:17:19Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![Tim\_Grasset](https://avatars.discourse-cdn.com/v4/letter/t/8c91f0/32.png) [@Tim\_Grasset](https://forums.digi.com/u/Tim_Grasset)
#### Post date: [April 28, 2017, 3:17pm UTC](https://forums.digi.com/t/pwm-and-digital-output/18303/1 "2017-04-28T15:17:19Z")

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Hi !

I have a little problem again

When I activate a PWM output, I have my led that turns on. Then when I want to turn on or off a led that is on a digital output, in both cases my led that is on my pwm goes out. Do you know why ?

I work in API mode, with a coordinator and an end device

Thank you and have a nice day ! 😃

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### Author: ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)
#### Post date: [May 1, 2017, 10:41am UTC](https://forums.digi.com/t/pwm-and-digital-output/18303/2 "2017-05-01T10:41:58Z")

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What line is the PWM connected to and which module are you working with?

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### Author: ![Tim\_Grasset](https://avatars.discourse-cdn.com/v4/letter/t/8c91f0/32.png) [@Tim\_Grasset](https://forums.digi.com/u/Tim_Grasset)
#### Post date: [May 3, 2017, 10:22am UTC](https://forums.digi.com/t/pwm-and-digital-output/18303/3 "2017-05-03T10:22:14Z")

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The LEDs are located on the “End device”

I have leds on the following pin: PWM0 / PWM1 / D0 / D1

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### Author: ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)
#### Post date: [May 3, 2017, 10:46am UTC](https://forums.digi.com/t/pwm-and-digital-output/18303/4 "2017-05-03T10:46:04Z")

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Which XBee modules are you working with and what firmware version is installed?

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<div class="post-metadata">

### Author: ![Tim\_Grasset](https://avatars.discourse-cdn.com/v4/letter/t/8c91f0/32.png) [@Tim\_Grasset](https://forums.digi.com/u/Tim_Grasset)
#### Post date: [May 4, 2017, 8:20am UTC](https://forums.digi.com/t/pwm-and-digital-output/18303/5 "2017-05-04T08:20:41Z")

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I use Xbee pro s1, Firmware version:10e6

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### Author: ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)
#### Post date: [May 4, 2017, 9:14am UTC](https://forums.digi.com/t/pwm-and-digital-output/18303/6 "2017-05-04T09:14:56Z")

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Sounds like you are using the wrong function in the DIO sample section. Try using a Sample rate instead of a change detect. Also update your firmware to 10EF.