Netduino home hardware projects downloads community

Jump to content


The Netduino forums have been replaced by new forums at community.wildernesslabs.co. This site has been preserved for archival purposes only and the ability to make new accounts or posts has been turned off.
Photo

Turning up the RGB LED Module


  • Please log in to reply
7 replies to this topic

#1 Christoc

Christoc

    Advanced Member

  • Members
  • PipPipPip
  • 127 posts
  • LocationBallwin, MO

Posted 14 April 2012 - 05:04 AM

In the webcast today Chris said it was possible to turn up the brightness on the RGB LED modules.... So... how would one do that? :D

View my blog at ChrisHammond.com

Projects: Netduino Tank/Tracked Vehicle, DNNFoos, Random other bits


#2 Christoc

Christoc

    Advanced Member

  • Members
  • PipPipPip
  • 127 posts
  • LocationBallwin, MO

Posted 14 April 2012 - 05:16 AM

Posted Image

View my blog at ChrisHammond.com

Projects: Netduino Tank/Tracked Vehicle, DNNFoos, Random other bits


#3 Pete Brown

Pete Brown

    Advanced Member

  • Members
  • PipPipPip
  • 138 posts
  • LocationAnne Arundel County, MD

Posted 15 April 2012 - 04:57 AM

My first impression when seeing your photo:

Posted Image
Pete Brown - http://10rem.net (NETMF, C++, Windows, C64, and general geekery) Twitter: @pete_brown
I work for Microsoft. Opinions expressed here are my own and do not necessarily reflect those of my employer,our partners or customers.

#4 Pete Brown

Pete Brown

    Advanced Member

  • Members
  • PipPipPip
  • 138 posts
  • LocationAnne Arundel County, MD

Posted 15 April 2012 - 04:58 AM

As to the actual question: I think this needs to be set in the on-module firmware, possibly a compiler constant or something. Pete
Pete Brown - http://10rem.net (NETMF, C++, Windows, C64, and general geekery) Twitter: @pete_brown
I work for Microsoft. Opinions expressed here are my own and do not necessarily reflect those of my employer,our partners or customers.

#5 Chris Walker

Chris Walker

    Secret Labs Staff

  • Moderators
  • 7767 posts
  • LocationNew York, NY

Posted 15 April 2012 - 04:59 AM

Maybe a .SetBrightness method? Chris

#6 Christoc

Christoc

    Advanced Member

  • Members
  • PipPipPip
  • 127 posts
  • LocationBallwin, MO

Posted 16 April 2012 - 03:31 AM

a .SetBrightness method would be great ;) I looked in the obvious places (at least obvious to me), but that didn't include in the on module firmware yet. Anyone got any tutorials as to module firmware yet?

View my blog at ChrisHammond.com

Projects: Netduino Tank/Tracked Vehicle, DNNFoos, Random other bits


#7 CW2

CW2

    Advanced Member

  • Members
  • PipPipPip
  • 1592 posts
  • LocationCzech Republic

Posted 16 April 2012 - 06:13 AM

The RGB LED module firmware does not limit the LED brightness. The current implementation uses 8 bit PWM and the values passed from the mainboard directly control duty cycle for the respective R, G and B channels of the timer, so the LED is at maximum brightness when the duty cycle is 100%. If I remember it correctly, there was a test application used during development that cycled the LED colors up to 50% PWM.

#8 Chris Walker

Chris Walker

    Secret Labs Staff

  • Moderators
  • 7767 posts
  • LocationNew York, NY

Posted 16 April 2012 - 06:47 AM

Just to clarify...it's the C# driver that limits the brightness, not the module firmware. The module accepts the 3 PWM dutyCycle values at full value. Chris




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

home    hardware    projects    downloads    community    where to buy    contact Copyright © 2016 Wilderness Labs Inc.  |  Legal   |   CC BY-SA
This webpage is licensed under a Creative Commons Attribution-ShareAlike License.