AaronLiddiment
commented
6 years ago In my experience a 12v strip means that you have 1 WS2811 chip for every 3 leds which means all 3 leds will be the same colour. For a Matrix it is better to use WS2812 strips that are single leds with the chip built in. If your strip is 3 leds per chip then you would have to change your width to 10 to get the matrix code to work correctly but each 'pixel' would be 3 leds. The MATRIX_TYPE tells the matrix code how the leds are wired together, a ZIGZAG type is where the strips are connected at alternate ends rather than running wires back from the end of each line to the start of the next.
performanc3
mdaslamknlgit
Hi Aaron ,
I'm trying to scrolling some words but when i upload the code ; code does not show properly on my matrix . LEDs are working randomly , examples of matrixs are not working same problem. Arduino gnd & supply gnd common by the way , using step down module for Arduino 5v. I suspected of matrix type any do u have any idea ? Where could i have done wrong ?
Thank you for your concern Best Regards,
Matrix Properties : 9hx30w total 270 rgb5050 Matrix Connections: LED_PIN -- resistor-- Din---Do--Din --Do Chipset: Ws2811 12v Data Gnd Supply: 12v 16,5 Amp Smps
Here is sample code :
include
include
include
include
define LED_PIN 6
define COLOR_ORDER GRB
define CHIPSET WS2811
define MATRIX_WIDTH 30
define MATRIX_HEIGHT 9
define MATRIX_TYPE HORIZONTAL_ZIGZAG_MATRIX // There might be a problem ???
cLEDMatrix<MATRIX_WIDTH, MATRIX_HEIGHT, MATRIX_TYPE> leds;
cLEDText ScrollingMsg;
const unsigned char TxtDemo[] = { EFFECT_SCROLL_LEFT "HELP "};
void setup() { FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds[0], leds.Size()); FastLED.setBrightness(16); FastLED.clear(true); delay(500); FastLED.showColor(CRGB::Red); delay(1000); FastLED.showColor(CRGB::Lime); delay(1000); FastLED.showColor(CRGB::Cyan); delay(1000); FastLED.showColor(CRGB::White); delay(1000); FastLED.show();
ScrollingMsg.SetFont(MatriseFontData); ScrollingMsg.Init(&leds, leds.Width(), ScrollingMsg.FontHeight() + 1, 0, 0); ScrollingMsg.SetText((unsigned char *)TxtDemo, sizeof(TxtDemo) - 1); ScrollingMsg.SetTextColrOptions(COLR_RGB | COLR_SINGLE, 0xff, 0x00, 0xff); }
void loop() { if (ScrollingMsg.UpdateText() == -1) ScrollingMsg.SetText((unsigned char *)TxtDemo, sizeof(TxtDemo) - 1); else FastLED.show(); delay(10); }