Esp8266 UDP packetBuffer doesn't delete itself










0















I made a small sound visualizer with two esp8266. The client side sends out numbers between 0-12 over Udp to the server side (every millisecond or so). the LEDs (server side) should only trigger if that number > 8, but when I cut off the music after a long stream of data > 8, the LEDs keep blinking for a couple of seconds.



char packetBuffer[UDP_TX_PACKET_MAX_SIZE];
bool udp_mode_7 = false;

void mode_7()
if (!udp_mode_7)
Udp.begin(localUdpPort);
udp_mode_7 = true;

int packetSize = Udp.parsePacket();
if (packetSize)
Udp.read(packetBuffer, UDP_TX_PACKET_MAX_SIZE);
int value = packetBuffer[0] * 256 + packetBuffer[1];
if (value / 256 > strip.numPixels() - mode_7_threshold)
int r = random(255);
int g = random(255);
int b = random(255);
for (int i = 0; i < strip.numPixels(); i++)
strip.setPixelColor(i, r, g, b);
strip.setPixelColor(strip.numPixels() - i, r, g, b);
strip.show();
delay(20);
if (i == 6)
break;


for (int i = 0; i < strip.numPixels(); i++)
strip.setPixelColor(i, 0, 0, 0);
strip.setPixelColor(strip.numPixels() - i, 0, 0, 0);
strip.show();
delay(20);
if (i == 6)
break;



for(int i = 0; i < UDP_TX_PACKET_MAX_SIZE; i++) packetBuffer[i] = 0;
// Udp.stop();
// udp_mode_7 = false;











share|improve this question



















  • 1





    What surprises you? Packets are getting in faster than they are processed, so old packets are still being processed after the packet stream ended.

    – Ctx
    Nov 13 '18 at 22:34















0















I made a small sound visualizer with two esp8266. The client side sends out numbers between 0-12 over Udp to the server side (every millisecond or so). the LEDs (server side) should only trigger if that number > 8, but when I cut off the music after a long stream of data > 8, the LEDs keep blinking for a couple of seconds.



char packetBuffer[UDP_TX_PACKET_MAX_SIZE];
bool udp_mode_7 = false;

void mode_7()
if (!udp_mode_7)
Udp.begin(localUdpPort);
udp_mode_7 = true;

int packetSize = Udp.parsePacket();
if (packetSize)
Udp.read(packetBuffer, UDP_TX_PACKET_MAX_SIZE);
int value = packetBuffer[0] * 256 + packetBuffer[1];
if (value / 256 > strip.numPixels() - mode_7_threshold)
int r = random(255);
int g = random(255);
int b = random(255);
for (int i = 0; i < strip.numPixels(); i++)
strip.setPixelColor(i, r, g, b);
strip.setPixelColor(strip.numPixels() - i, r, g, b);
strip.show();
delay(20);
if (i == 6)
break;


for (int i = 0; i < strip.numPixels(); i++)
strip.setPixelColor(i, 0, 0, 0);
strip.setPixelColor(strip.numPixels() - i, 0, 0, 0);
strip.show();
delay(20);
if (i == 6)
break;



for(int i = 0; i < UDP_TX_PACKET_MAX_SIZE; i++) packetBuffer[i] = 0;
// Udp.stop();
// udp_mode_7 = false;











share|improve this question



















  • 1





    What surprises you? Packets are getting in faster than they are processed, so old packets are still being processed after the packet stream ended.

    – Ctx
    Nov 13 '18 at 22:34













0












0








0








I made a small sound visualizer with two esp8266. The client side sends out numbers between 0-12 over Udp to the server side (every millisecond or so). the LEDs (server side) should only trigger if that number > 8, but when I cut off the music after a long stream of data > 8, the LEDs keep blinking for a couple of seconds.



char packetBuffer[UDP_TX_PACKET_MAX_SIZE];
bool udp_mode_7 = false;

void mode_7()
if (!udp_mode_7)
Udp.begin(localUdpPort);
udp_mode_7 = true;

int packetSize = Udp.parsePacket();
if (packetSize)
Udp.read(packetBuffer, UDP_TX_PACKET_MAX_SIZE);
int value = packetBuffer[0] * 256 + packetBuffer[1];
if (value / 256 > strip.numPixels() - mode_7_threshold)
int r = random(255);
int g = random(255);
int b = random(255);
for (int i = 0; i < strip.numPixels(); i++)
strip.setPixelColor(i, r, g, b);
strip.setPixelColor(strip.numPixels() - i, r, g, b);
strip.show();
delay(20);
if (i == 6)
break;


for (int i = 0; i < strip.numPixels(); i++)
strip.setPixelColor(i, 0, 0, 0);
strip.setPixelColor(strip.numPixels() - i, 0, 0, 0);
strip.show();
delay(20);
if (i == 6)
break;



for(int i = 0; i < UDP_TX_PACKET_MAX_SIZE; i++) packetBuffer[i] = 0;
// Udp.stop();
// udp_mode_7 = false;











share|improve this question
















I made a small sound visualizer with two esp8266. The client side sends out numbers between 0-12 over Udp to the server side (every millisecond or so). the LEDs (server side) should only trigger if that number > 8, but when I cut off the music after a long stream of data > 8, the LEDs keep blinking for a couple of seconds.



char packetBuffer[UDP_TX_PACKET_MAX_SIZE];
bool udp_mode_7 = false;

void mode_7()
if (!udp_mode_7)
Udp.begin(localUdpPort);
udp_mode_7 = true;

int packetSize = Udp.parsePacket();
if (packetSize)
Udp.read(packetBuffer, UDP_TX_PACKET_MAX_SIZE);
int value = packetBuffer[0] * 256 + packetBuffer[1];
if (value / 256 > strip.numPixels() - mode_7_threshold)
int r = random(255);
int g = random(255);
int b = random(255);
for (int i = 0; i < strip.numPixels(); i++)
strip.setPixelColor(i, r, g, b);
strip.setPixelColor(strip.numPixels() - i, r, g, b);
strip.show();
delay(20);
if (i == 6)
break;


for (int i = 0; i < strip.numPixels(); i++)
strip.setPixelColor(i, 0, 0, 0);
strip.setPixelColor(strip.numPixels() - i, 0, 0, 0);
strip.show();
delay(20);
if (i == 6)
break;



for(int i = 0; i < UDP_TX_PACKET_MAX_SIZE; i++) packetBuffer[i] = 0;
// Udp.stop();
// udp_mode_7 = false;








arduino udp esp8266






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edited Nov 14 '18 at 3:14









gre_gor

4,13792631




4,13792631










asked Nov 13 '18 at 20:44









TheDudeTheDude

1




1







  • 1





    What surprises you? Packets are getting in faster than they are processed, so old packets are still being processed after the packet stream ended.

    – Ctx
    Nov 13 '18 at 22:34












  • 1





    What surprises you? Packets are getting in faster than they are processed, so old packets are still being processed after the packet stream ended.

    – Ctx
    Nov 13 '18 at 22:34







1




1





What surprises you? Packets are getting in faster than they are processed, so old packets are still being processed after the packet stream ended.

– Ctx
Nov 13 '18 at 22:34





What surprises you? Packets are getting in faster than they are processed, so old packets are still being processed after the packet stream ended.

– Ctx
Nov 13 '18 at 22:34












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