GPIO LED Strips Dimmer ?

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Trax01
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Joined: Sunday 05 March 2017 18:02
Target OS: Raspberry Pi
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GPIO LED Strips Dimmer ?

Post by Trax01 » Sunday 05 March 2017 18:17

Hello,

I have a question and nothing found about it only over wifi. I would like connect on the GPIO pin from my rpi a led stip over a TIP120. Now my question its possible to dim these leds ? on/off is no problem but direkt dimming i have noting found.
Sorry for my bad english !

SweetPants
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Re: GPIO LED Strips Dimmer ?

Post by SweetPants » Sunday 05 March 2017 18:39

As far as I know, dimming is done using PWM (Puls Width Modulation), so i assume if you can let your GPIO do PWM, you can.
Ubuntu 16.04.5 LTS, Intel NUC, MySensors 2.3.0-alpha, Pro Mini 3.3/8M RFM69(HW), ESP8266 (SDK2.2.0), Sonoff, RFLink, RFXcom, MQTT, NodeRed, Domoticz Beta (from source)

Trax01
Posts: 2
Joined: Sunday 05 March 2017 18:02
Target OS: Raspberry Pi
Domoticz version:
Contact:

Re: GPIO LED Strips Dimmer ?

Post by Trax01 » Sunday 05 March 2017 20:54

okay i know the Raspberry Pi can pwm but i don´t know how I can do this !

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