Below is one real tested for 144leds HD107S and 144LEDs APA102. You can see obviously voltage drop for APA102 after 30leds, after 0.5m no signal and all leds turn red. for hd107s, only the end has a little voltage drop. also HD107S is brightness [...]
Comparison LED Strips: WS2812B, SK6812, APA102, HD107S
All LEDs are SMD5050 to compare (they also have 3535/2020/1515 size). There are RGB and RGBW variants for some of them (W of RGBW is used for an additional white LED 3000k/4000k/6000k CCT).
These LEDs fall into two categories:WS2812B, SK6812:3wires [...]
HD107s pixel RGB led used Newstar’s IC(NS107S), so we named “HD107S”, PWM refresh rate 27kHz, Oscillator Frequency 40MHz.
Brief of HD107s LED
1, Althrough it is DC5V input, but it almost same voltage drop with 12V pixel led strip, 30leds/m HD107S 7m no voltage drop.
2, It is the fastest [...]
Why we need high PWM for the pixel led strip? When we learn the IC chip specs, we always note there are two important rates, one is named refresh rate, another important parameter is PWM rate. These two above rates can be important in certain [...]
Customer used HD107S 2020 addressable LEDs to make one big transparent led display, looks great! (Newstar is the orginal IC factory, they named NS107S, we bought their 107S IC to make LEDs, so named “HD107S”)HD107S 2020 transparent led display video
Pixel Protocol Overview: WS2815 This pixel protocol was designed by Newstar in China. WS2815 offers many of the benefits the WS28xx series is famous for. It uses 12V as its main power input for each chip, VDD, which is then dropped down to 5V inside [...]
Pixel Protocol Overview: HD107SHD107S is very similar to the APA range and boasts everything APA102 brings, with a higher PWM rate and brighter LEDs. The control circuit and LEDs are integrated in a 5050 SMD package, which provides a small physical footprint for each pixel.
PixLite Support
Are [...]
Pixel Protocol Overview: APA102 This pixel protocol was designed by Taiwan company. APA102 is one of the most common protocols for pixel lighting displays. The control circuit and LEDs are integrated in a 5050 SMD package, which provides a small physical footprint for each pixel. [...]
Pixel Protocol Overview: WS2814 This pixel protocol was designed by Newstar in China. WS2814 offers many of the benefits the WS28xx series is famous for, as well as being the first in the series to offer an RGBW design, making it one of the most [...]
According to Paul Stoffregen’s Articles on December 6, 2017December 7, 2017, we know the APA102 LEDs strips have the problem at 24 MHz, usually after 150 to 250 LEDs.
But why? Here’s his attempt to investigate:One tempting explanation is signal quality problems due to horribly messy unterminated [...]