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Author Topic: $40 fullsize RGB board  (Read 2509 times)

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Offline cribbit

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  • Posts: 288
$40 fullsize RGB board
« on: Wed, 19 October 2016, 10:32:17 »
https://www.amazon.com/MechanicalEagle-Backlit-Mechanical-Keyboard-Switches/dp/B01I1N6J34?th=1

COUPON CODE: XTBNMORJ

Seems that each key is actually individually RGB controllable. Looks like SMD IC LEDs. Curious how they manage power consumption.
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Offline adevriesc

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Re: $40 fullsize RGB board
« Reply #1 on: Wed, 19 October 2016, 11:19:07 »
Every LED board manages power consumption with PWM. Essentially the LEDs are strobed at a frequency so fast that it's invisible and inaudible (as sometimes lower frequencies make a buzzing noise). 40 kHz+.
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Offline cribbit

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Re: $40 fullsize RGB board
« Reply #2 on: Wed, 19 October 2016, 11:30:03 »
Quote from: adevriesc on Wed, 19 October 2016, 11:19:07
Every LED board manages power consumption with PWM. Essentially the LEDs are strobed at a frequency so fast that it's invisible and inaudible (as sometimes lower frequencies make a buzzing noise). 40 kHz+.

More a comment that's it's a $40 keyboard, so if they didn't QC well enough you'll burn out a USB port (or more) running this. You have to use some form of PWM to stay under 500ma but some ports will only provide 100ma which will definitely be an issue. Also, these addressable LEDs which they seem to be using draw more power than your normal 4 pin.
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Offline mrboovn

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Re: $40 fullsize RGB board
« Reply #3 on: Thu, 20 October 2016, 00:14:39 »
Unavailable  :confused:
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Offline cribbit

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Re: $40 fullsize RGB board
« Reply #4 on: Thu, 20 October 2016, 00:51:51 »
Quote from: mrboovn on Thu, 20 October 2016, 00:14:39
Unavailable  :confused:

I'm actually surprised it took this long.
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Offline 1391406

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Re: $40 fullsize RGB board
« Reply #5 on: Thu, 20 October 2016, 12:48:01 »
TKL version by the same company for $39.99

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Offline BinaryHalibut

  • Posts: 1
Re: $40 fullsize RGB board
« Reply #6 on: Thu, 20 October 2016, 13:18:46 »
Fairly sure that one's just different color backlight per row, and not actually RGB backlighting. The ones that say "multicolor backlit" are usually like this.
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Offline cribbit

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Re: $40 fullsize RGB board
« Reply #7 on: Thu, 20 October 2016, 16:57:02 »
Yep, the TKL is weirdly just different colored rows. I would understand if both were RGB or both were just colored rows, but I guess they decided to actually try for the fullsize and not the TKL.
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