geekhack

geekhack Marketplace => Great Finds => Topic started by: cribbit on Wed, 19 October 2016, 10:32:17

Title: $40 fullsize RGB board
Post by: cribbit 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.
Title: Re: $40 fullsize RGB board
Post by: 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+.
Title: Re: $40 fullsize RGB board
Post by: cribbit 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.
Title: Re: $40 fullsize RGB board
Post by: mrboovn on Thu, 20 October 2016, 00:14:39
Unavailable  :confused:
Title: Re: $40 fullsize RGB board
Post by: cribbit 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.
Title: Re: $40 fullsize RGB board
Post by: 1391406 on Thu, 20 October 2016, 12:48:01
TKL version (https://www.amazon.com/MechanicalEagle-Multicolor-Mechanical-Keyboard-Switches/dp/B01DBVH16U/ref=sr_1_9?s=pc&ie=UTF8&qid=1476985080&sr=1-9&keywords=Mechanical+Gaming+Keyboard) by the same company for $39.99

(https://images-na.ssl-images-amazon.com/images/I/615Xjc6Um3L._SL1010_.jpg)
Title: Re: $40 fullsize RGB board
Post by: BinaryHalibut 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.
Title: Re: $40 fullsize RGB board
Post by: cribbit 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.