質問編集履歴
3
画像追記
test
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@@ -402,6 +402,18 @@
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送信元IP192.168.4.1
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送信元IP192.168.4.2
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### 環境
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Unity2017.3.0f3
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2
wiresharkでのパケットの確認を質問欄に追加
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test
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@@ -222,6 +222,186 @@
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### wiresharkでのパケットの確認
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ESPrDeveloper側のコードを以下のように改変し、wiresharkでWiFiにどんなパケットが流れているか確認しました。
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```Arduino
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#include <ESP8266WiFi.h>
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#include <WiFiUdp.h>
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extern "C" {
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#include "user_interface.h"
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}
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const char* ssid = "ESP_WROOM_02";
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const char* password = "hoge4444";
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WiFiUDP UDPTestServer;
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static const char *udpReturnAddr = "192.168.150.64";
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unsigned int UDPPort = 22222;
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255
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const int packetSize = 2;
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byte packetBuffer[packetSize];
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void setup() {
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Serial.begin(115200);
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264
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265
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delay(10);
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266
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Serial.println();
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Serial.println();
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Serial.print("Connecting to ");
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Serial.println(ssid);
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WiFi.begin(ssid, password);
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280
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281
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WiFi.config(IPAddress(192, 168, 4, 1), IPAddress(192, 168, 4, 2), IPAddress(255, 255, 255, 0));
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283
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while (WiFi.softAPgetStationNum() <= 0) {
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delay(500);
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Serial.print(".");
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}
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Serial.println("");
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Serial.println("WiFi connected");
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298
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299
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Serial.print("IP address: ");
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300
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Serial.println(WiFi.localIP());
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IPAddress myIP = WiFi.softAPIP();
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Serial.print("AP IP address: ");
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Serial.println(myIP);
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byte mac[6];
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315
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WiFi.macAddress(mac);
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316
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317
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char buf[20];
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318
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Serial.print("MAC address: ");
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320
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sprintf(buf,"%02X:%02X:%02X:%02X:%02X:%02X",mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
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Serial.print(buf);
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sprintf(buf," %02x%02x%02x%02x%02x%02x",mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
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Serial.println(buf);
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328
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329
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UDPTestServer.begin(UDPPort);
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330
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331
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332
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333
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}
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334
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335
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336
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337
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int value = 0;
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338
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+
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339
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+
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340
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+
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341
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+
void loop()
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342
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+
|
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343
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+
{
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|
344
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+
|
|
345
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+
if(WiFi.softAPgetStationNum() <= 0)
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346
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+
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347
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{
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348
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+
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349
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delay(500);
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350
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+
|
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351
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+
Serial.print(".");
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352
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+
|
|
353
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+
}
|
|
354
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+
|
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355
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+
else
|
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356
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+
|
|
357
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+
{
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358
|
+
|
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359
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+
handleUDPServer();
|
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360
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+
|
|
361
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+
}
|
|
362
|
+
|
|
363
|
+
delay(1);
|
|
364
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+
|
|
365
|
+
}
|
|
366
|
+
|
|
367
|
+
|
|
368
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+
|
|
369
|
+
void handleUDPServer()
|
|
370
|
+
|
|
371
|
+
{
|
|
372
|
+
|
|
373
|
+
uint ADC_Value = 0;
|
|
374
|
+
|
|
375
|
+
ADC_Value = system_adc_read();
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|
376
|
+
|
|
377
|
+
String str = String(ADC_Value) ;
|
|
378
|
+
|
|
379
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+
int a = str.length();
|
|
380
|
+
|
|
381
|
+
char msg[a+1];
|
|
382
|
+
|
|
383
|
+
str.toCharArray(msg, a+1);
|
|
384
|
+
|
|
385
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+
Serial.print(".");
|
|
386
|
+
|
|
387
|
+
UDPTestServer.beginPacket(udpReturnAddr, UDPPort);
|
|
388
|
+
|
|
389
|
+
UDPTestServer.write(msg, a+1);
|
|
390
|
+
|
|
391
|
+
UDPTestServer.endPacket();
|
|
392
|
+
|
|
393
|
+
delay(3);
|
|
394
|
+
|
|
395
|
+
}
|
|
396
|
+
|
|
397
|
+
```
|
|
398
|
+
|
|
399
|
+
結果は以下のようになりUDPパケットは流れず、ARPパケットやICMPパケットが多くみられました。
|
|
400
|
+
|
|
401
|
+
|
|
402
|
+
|
|
403
|
+
|
|
404
|
+
|
|
225
405
|
### 環境
|
|
226
406
|
|
|
227
407
|
Unity2017.3.0f3
|
1
初心者アイコン追加
test
CHANGED
|
File without changes
|
test
CHANGED
|
File without changes
|