Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [apa102]

8 questions
3
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1 answer

Programming an ATtiny85 and powering a circuit over a single USB-C port

I'm currently working on a RGB enabled controller stand that will include a circuit that does do two things: charge the controllers control RGB strips on the mount I'm pretty new to electronics, and I never designed a circuit before, so I was…
Ariel
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3
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4 answers

Getting a more stable signal on very long strips of adressable RGB LEDs

I need to drive a 12m strip of APA102 RGB LEDs (144 per meter). I use a Raspberry Pi for this Job. This LED driver IC (APA102) takes an SPI signal and hands it to the next LED in the series and so on. You can find the datasheet here with the circuit…
timonsku
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1 answer

Long term reliability of addressable RGB LED strips? How do WS2812B, APA102, and SK6812 compare?

I'm about to order a lot of RGB LED strips for a project that will hopefully be running for years if not decades. I used to have very good luck with strips using the WS2812B chips, but in recent years the quality seems to have dropped significantly.…
bigjosh
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1 answer

Dotstar (APA102) LED strips decoupling capacitor on PCB

I am trying (based on very distant memories of EE in college) to design a fairly simple Arduino shield PCB to control several LED strips in parallel. Each strip would connect to its own 4 pin terminal block, providing 5V, GND, clock and data to the…
Bethor
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APA102 (HD107S) LED strip noise problem

I built POV display with HD107S LED strip (similar to APA102), It uses Raspberry Pi 3 and ESC module to drive the motor. At first on the breadboard the POV works well, at this time the strip LED circuit and the ESC circuit were separate. But now…
0ussama
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2 answers

APA102 LED strips behaving weirdly and flickering towards the end

I am trying to make a 29 x 29 LED matrix to display animations using the APA102 (Dotstar) LEDs with an Arduino MKR Vidor 4000 as a microcontroller. I have connected the data and clock signals of the led strips in series. The ground and 5 V are…
The Assembly
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1 answer

Power consumption of APA102c LED 10mm grid

I have two of these 16x16 grids (https://www.pololu.com/product/2533) with leds programmed to have white color (255, 255, 255) and brightness level = 16. I have a power supply with maximum of 16A current. This entire setup has a power consumption…
Mooni
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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 this into the current LCD controller board? any…
user3202058
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