# PCF9685 Dimmen slow

**URL:** <https://discourse.nodered.org/t/pcf9685-dimmen-slow/2731>\
**Category:** General\
**Created:** [31 August 2018 16:33 UTC](https://discourse.nodered.org/t/pcf9685-dimmen-slow/2731 "2018-08-31T16:33:25Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![rieders](https://avatars.discourse-cdn.com/v4/letter/r/a4c791/32.png) [@rieders](https://discourse.nodered.org/u/rieders)\
**Post date:** [31 August 2018 17:51 UTC](https://discourse.nodered.org/t/pcf9685-dimmen-slow/2731/4 "2018-08-31T17:51:08Z")

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Hello and thanks for the quick reply.  
I set it up like this.

[{"id":"100823ba.fc696c","type":"PCA9685 out","z":"a945a343.02499","name":"PWM Output 0 (Led)","pca9685":"27d30447.9cc9ec","channel":"0","payload":"","unit":"percent","onStep":"0","x":633,"y":630,"wires":[],"icon":"node-red/light.png"},{"id":"bb11f48e.8d6398","type":"ui\_button","z":"a945a343.02499","name":"","group":"420d5227.34751c","order":6,"width":"2","height":"1","passthru":false,"label":"button","color":"","bgcolor":"","icon":"","payload":"","payloadType":"str","topic":"","x":252,"y":587,"wires":[["658c757f.01663c"]]},{"id":"658c757f.01663c","type":"ui\_slider","z":"a945a343.02499","name":"","label":"LED Blau","group":"420d5227.34751c","order":5,"width":"24","height":"1","passthru":true,"topic":"","min":0,"max":"50","step":1,"x":403,"y":587,"wires":[["100823ba.fc696c"]]},{"id":"f0780828.f7d738","type":"light-scheduler","z":"a945a343.02499","settings":"52fb5c40.a28814","events":"[{"start":{"dow":1,"mod":420},"end":{"dow":1,"mod":1200}},{"start":{"dow":2,"mod":420},"end":{"dow":2,"mod":1200}},{"start":{"dow":6,"mod":420},"end":{"dow":6,"mod":1200}},{"start":{"dow":0,"mod":420},"end":{"dow":0,"mod":1200}},{"start":{"dow":5,"mod":420},"end":{"dow":5,"mod":1200}},{"start":{"dow":4,"mod":420},"end":{"dow":4,"mod":1200}},{"start":{"dow":3,"mod":420},"end":{"dow":3,"mod":1200}}]","topic":"","name":"Sunrise","onPayload":"10","onPayloadType":"num","offPayload":"OFF","offPayloadType":"str","onlyWhenDark":false,"sunElevationThreshold":6,"sunShowElevationInStatus":true,"outputfreq":"output.minutely","x":406,"y":640,"wires":[["100823ba.fc696c"]]},{"id":"27d30447.9cc9ec","type":"PCA9685","z":"","deviceNumber":"1","address":"64","frequency":"50"},{"id":"420d5227.34751c","type":"ui\_group","z":"","name":"Default[Home]","tab":"f4e14fb.64ba0b","disp":true,"width":"24","collapse":true},{"id":"52fb5c40.a28814","type":"light-scheduler-settings","z":"","name":"Arnstadt","latitude":"50.840914","longitude":"10.9505322"},{"id":"f4e14fb.64ba0b","type":"ui\_tab","z":"","name":"Home","icon":"dashboard","order":1}]

If I move the slider to a different position, the brightness of the light changes abruptly.  
I want it to change slowly, much like a sunrise.

greetings  
André

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