first light for s2l type packets
icorrect mapping from xy coordinates to zigzag neopixel leds the reciever arduino code has a bad xy calculation so displays garbage from ram into the pixelsmaster
parent
f4c71012be
commit
1c8e41e8ad
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@ -13,10 +13,14 @@
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#define PIN 6
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// How many NeoPixels are attached to the Arduino?
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#define NUMPIXELS 25
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Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
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// at 800Mhz we can send 33333 color values / second
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// so to have 60hz refresh the max pixels is 555 so we set it to arbitryrily 512
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#define ROWS 5
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#define COLS 5
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#define NUMPIXELS ROWS*COLS
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uint16_t brightness = 10;
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Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
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// the mac will be filled out by serial number, stored as ascii hex in the eeprom 6 first bytes
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byte mac[] = { '2', 'S', 'L', 0, 0, 0 }; // 2(to) S-yn2-L-ights (2 because unicast + locally administered)
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@ -61,8 +65,22 @@ void setup() {
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}
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Serial.println();
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pixels.begin();
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pixels.show(); // Initialize all pixels to 'off'
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for(int x=0;x<COLS;x++) {
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for(int y=0;y<ROWS;y++) {
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// pixels.setPixelColor(indirect(x,y), pixels.Color(r, g, b));
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pixels.setPixelColor(indirect(x,y), pixels.Color(255, 0, 0));
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pixels.show();
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delay(100);
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pixels.setPixelColor(indirect(x,y), pixels.Color(0, 0, 0));
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}
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}
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pixels.show();
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}
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void loop() {
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int packetSize = Udp.parsePacket();
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if(packetSize)
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@ -84,26 +102,56 @@ uint16_t readSubPixelValue(byte in){
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}
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#define S2LHEADERLEN 12-1
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void drawCommand() {
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Udp.read(packetBuffer,UDP_TX_PACKET_MAX_SIZE);
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for(uint16_t i = 0; i<NUMPIXELS; i++){
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byte r=(byte)packetBuffer[i*3];
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byte g=(byte)packetBuffer[i*3+1];
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byte b=(byte)packetBuffer[i*3+2];
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pixels.setPixelColor(indirect(i), pixels.Color(readSubPixelValue(r), readSubPixelValue(g), readSubPixelValue(b)));
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if(strncmp("s2l\n",packetBuffer,4)) {
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Serial.println("unknown packet recieved");
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return;
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}
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int width=(int)(packetBuffer[4]-'0');
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int height=(int)(packetBuffer[5]-'0');
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Serial.print(" width:");
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Serial.println(width);
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Serial.print("height:");
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Serial.println(height);
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// now we have RGBA values coming in, ignore the A channel
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// rows * (columns * 4 +1)
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// e.g. 20 * (200 * 4 + ) 20 rows of 200 pixels (+1 as there is a \n after each row)
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for(int y=0;y<height;y++) {
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for(int x=0;x<width;x++) {
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// determine r g b for this pixel x,y
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// for(uint16_t i = S2LHEADERLEN-1; i<NUMPIXELS; i++){
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uint16_t r=(uint16_t)packetBuffer[S2LHEADERLEN+(y * (width * 4 + 1)) + (x * 4 + 1)];
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Serial.print((char)r);
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uint16_t g=(uint16_t)packetBuffer[S2LHEADERLEN+(y * (width * 4 + 1)) + (x * 4 + 2)];
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Serial.print((char)g);
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uint16_t b=(uint16_t)packetBuffer[S2LHEADERLEN+(y * (width * 4 + 1)) + (x * 4 + 3)];
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Serial.print((char)b);
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Serial.print(' ');
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uint16_t pix=indirect(x,y);
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if (pix>=0) {
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pixels.setPixelColor(indirect(x,y), pixels.Color(r, g, b));
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}
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}
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Serial.println();
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}
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pixels.show();
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}
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#define ROWS 5
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uint16_t indirect(uint16_t in) {
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if((in/ROWS)%2) {
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uint16_t t;
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t=in/ROWS;
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t*=ROWS;
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t+=ROWS-(in%ROWS)-1;
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return t;
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} else {
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return in;
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uint16_t indirect(uint16_t col,uint16_t row) {
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if(col>COLS) { return -1;}
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if(row>ROWS) { return -1;}
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// orientation is top to bottom, one right, then bottom to top
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// we may want to add a mirror into this if it's put into a window
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if(col%2) { // odd column, this reverses the direction
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// invert the row
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uint16_t invrow=ROWS-row-1;
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return col*ROWS+invrow;
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} else { // check if column is even, i.e. the first = 0 = even
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return col*ROWS+row;
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}
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}
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@ -0,0 +1,50 @@
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#!/bin/bash
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# test program
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# modify below the ethernet adress
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# width and height are unfortunately hardcoded
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a=-1
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while true
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do
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a=$((a+1))
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frame="$(
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echo "s2l"
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printf "55518 "
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printf "1"
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echo ""
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#a=$(date +%S)
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#a=$((0+a))
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j=0
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while [ $j -lt 5 ]
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do
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i=0
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while [ $i -lt 5 ]
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do
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n=$((i*5+j))
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if [ $n -eq $a ]
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then
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printf "xyz "
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else
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printf "012 "
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fi
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i=$((i+1))
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done
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j=$((j+1))
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echo "" # next row
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done
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d=0
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# while [ $d -lt 12 ]
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# do
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# s=0
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# while [ $s -lt 8 ]
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# do
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# printf "1${s}1 "
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# s=$((s+1))
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# done
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# d=$((d+1))
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# echo "" # next display
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# done
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)"
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echo "$frame"
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echo "$frame" | nc -w 1 -u 10.2.113.161 8888
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sleep 1
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done
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