Questions tagged [rgb]

Short for: Red Green Blue. The primary colors in light. Mix them to create any imaginable visible color of light. Questions are typical in reference to RGB Leds, RGB Led drivers, and code related to mixing RGB light, but can include RGB Video Standard in VGA monitors.

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RGBHV (VGA) to YPbPr Converter and Waveforms?

Purely for hobby, I am working on an RGBHV (VGA) to YPbPr (Component) converter circuit for old games consoles modified to output RGBHV on a VGA cable. From the game consoles, the RGB signal is taken ...
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0answers
31 views

Can I connect 2 power supplies for 16 meters LED RGB strip?

I've bought 2 sets of 10 meter LED RGB strip (7.2w/m) for a room. Then I've cut them to around 8 meters each to get 16 meters. Everything seemed fine but one thing, because it's 2 separate controllers,...
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3answers
160 views

Can you determine RGB pinouts with a multi meter?

I have a Swiftech Apogee XL2 that has an addressable LED inside it. I want to connect it to my other RGB setups but I need to know the pin signals and voltage of the LED. I have a multi-meter at the ...
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2answers
66 views

Controlling RGB led strip each color with a switch

I am creating a picture frame that will have RGB led strip surrounding the frame. There is no room for controller. Is it possible to wire a switch between every color cable so I can manualy turn on ...
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1answer
1k views

ATmega328p driving RGB LED WS2801

I am using an ATmega328p to control this RGB LED module. The ATmega is on an Arduino Uno, but I am programming it in C, without using the Arduino libraries. To power the RGB module I am also using a ...
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0answers
455 views

can't change LEDs states using PCA9685

I have a PCA9685 IC connected to i2c of cubieboard like board. Also OE pin is connected to one GPIO pin. I'm using ic2tools to communicate with PCA9685, I can read/...
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0answers
187 views

RGB Cable Assignments - help

I have a video cable D-Sub 9 pin. Someone know the connector pin assignments to do a RGB 3 bnc cable? Someone can help me? Below, the image of description of the cable
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0answers
630 views

Mystery while driving a NeoPixel Ring (WS2812) with a GEMMA (ATtiny85)

I am working with an Adafruit GEMMA and NeoPixel Ring 16 LEDs (ATtiny85 and 16 WS2812 leds) and trying to get a program to light the LEDs according to my "pattern" structure below, representing R, G, ...
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0answers
51 views

How to convert arcade RGB video (2-5v p-p) to VGA (0-0.7v)?

I'm trying to convert arcade video signals (JAMMA) to VGA specifications. From what I've gathered, arcade video signals aren't standardized. They can range from 0v-2v or 0v-5v, etc. However, VGA ...
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1answer
68 views

30 Meter in series LED SMD 5050 60 led/m 12v RGBW

I want to run 30 meter Led length in series in a room on the ceiling. LED specifications (according to the supplier:) LED Type: 5050 RGBW LED Light Strip Quantity: 60 LEDs / Meter Working Input ...
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0answers
47 views

Battery voltage indicator using a RGB 5050 LED strip

I am looking to use a 5050 RGB LED strip to show either green, blue, and red depending on the battery I want two monitors voltage. If I take my LED strip and connect 12 volts to it and then ground one ...
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1answer
95 views

RGB led weird color behaviour (blue except when touched to skin)

I have an RGB LED, which I belive to be the diffuse version of this one: https://www.sparkfun.com/datasheets/Components/YSL-R596CR3G4B5C-C10.pdf, though I am not completely sure, as I bought it some ...
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182 views

Red divider resistors for 5050 RGB strip coming from WS2811 chip

To split up a WS2811 data signal into discrete 5050 RGB 12V LED signals, I followed the example on the WS2811 datasheet and hooked up its outputs to a separate power supply. This example shows one ...
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32 views

Analogue Video Trace Matching

I'm working on an analogue audio, video and sync board for my Dreamcast. Something I've been wondering about is the tolerance for analogue video, specifically RGB, in regards to the delta for trace ...
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2answers
414 views

What power supply do I need for my LED light strips?

My set up is this: Power supply > RGB LED WiFi controller > 1 to 3 cable splitter > 2M cable (x3) > 132.5cm 120leds/m 5050 RGB strip (x3) I contacted the eBay seller about what power supply I would ...
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379 views

How to calibrate color sensor to sense RGB colors on the scale of 0-255 if the color source distance varies from 1-25 cm?

I am currently using a TCS3200 RGB color sensor but the sensed values for same color varies with the distance between sensor and color source. How should I calibrate my sensor so as to get values ...
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2answers
170 views

Wiring an RGB led light array

I'm building a grow light using 100 rgb leds. I know that I need resistors but I don't know how to calculate which ones to buy. Also before I buy the leds I have the choice between common cathode ...
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1answer
52 views

Switching backlight to RGB in the following monitor C24FG70

I have the following monitor: Samsung C24FG70. Is it possible to change the white led backlights with RGB leds? Possibly the smd APA102 with the following microcontroller: ESP8266. How could i hook ...
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3answers
3k views

Control Simple RGB LED Light Strip With ESP-01 Using Homebridge

What I am trying to do is control a simple 2m 5050 RGB Led Light Strip though a ESP-01 that receives http requests through Homebridge. I am doing this through the better-http-rgb Homebridge plugin and ...
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1answer
676 views

WS2811 RGB LED with arduino

I need to get this model of RGB working with Arduino , I can't find this model on the internet , it's says 12volts. I need to know how to hook it up ? and if there is an Arduino code that would be ...