// MicroOsc_NeoPixel_SLIP
// by Thomas O Fredericks
// 2022-11-09
// HARDWARE REQUIREMENTS
// ==================
// NeoPixel LED strip connected to pin 4
// REQUIRED LIBRARIES
// ==================
// MicroOsc
// Adafruit NeoPixel
// REQUIRED CONFIGURATION
// ======================
// Set Serial baud to 115200
#include <MicroOscSlip.h>
// The number 128 between the < > below is the maximum number of bytes reserved for incomming messages.
// If you want to control 30 RGB NeoPixels, you need at least 90 bytes for the data (1 byte per color). We are reserving a little more (128 bytes) just in case.
// Outgoing messages are written directly to the output and do not need more reserved bytes.
MicroOscSlip<128> myMicroOsc(&Serial);
#include <Adafruit_NeoPixel.h>
const int myPixelCount = 30;
const int myPixelPin = 4;
Adafruit_NeoPixel myPixelStrip(myPixelCount, myPixelPin , NEO_RGB + NEO_KHZ800);
void setup() {
// INITIATE SERIAL COMMUNICATION
Serial.begin(115200);
// INITIALIZE PIXEL STRIP
myPixelStrip.begin();
// STARTUP ANIMATION
// LIGHT ALL PIXELS IN WHITE THEN TURN THEM ALL OFF
for ( int i=0; i < myPixelCount; i++ ) {
myPixelStrip.setPixelColor(i, myPixelStrip.Color(255, 255 , 255));
myPixelStrip.show();
delay(100);
}
delay(1000);
myPixelStrip.clear();
myPixelStrip.show();
}
// FUNCTION THAT IS CALLED FOR EVERY RECEIVED OSC MESSAGE
void myOnReceiveMessage( MicroOscMessage& receivedOscMessage ) {
// IF THE ADDRESS IS /rgb
if ( receivedOscMessage.fullMatch("/rgb") ) {
// CREATE A VARIABLE TO STORE THE POINTER TO THE DATA
const uint8_t* blobData;
// GET THE DATA SIZE AND THE POINTER TO THE DATA
int blobSize = receivedOscMessage.nextAsBlob(&blobData);
// IF DATA SIZE IS LARGER THAN 0 AND IS A MULTIPLE OF 3 AS REQUIRED BY RGB PIXELS
if ( blobSize > 0 && blobSize % 3 == 0 ) {
// DIVIDE THE DATA BY 3 TO GET THE NUMBER OF PIXELS
int blobPixelCount = blobSize / 3;
// ITERATE THROUGH EACH PIXEL IN THE BLOB
for ( int i = 0 ; i < blobPixelCount ; i++ ) {
// EACH PIXEL HAS 3 BYTES, SO WE GO THROUGH THE DATA, 3 AT A TIME
int blobIndex = i * 3;
uint8_t red = myPixelStrip.gamma8(blobData[blobIndex]);
uint8_t green = myPixelStrip.gamma8(blobData[blobIndex+1]);
uint8_t blue = myPixelStrip.gamma8(blobData[blobIndex+2]);
myPixelStrip.setPixelColor(i, myPixelStrip.Color(red , green , blue));
}
myPixelStrip.show();
}
}
}
void loop() {
myMicroOsc.receiveMessages( myOnReceiveMessage );
}
