ESP8266: Difference between revisions

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ESP8266 (view source)

Revision as of 14:49, 14 June 2016

1,336 bytes added , 14 June 2016

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→‎UDP sending

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 == Use as a standalone Microcontroller Board ==
-Installation Instructions: https://github.com/esp8266/Arduino
+Installation Instructions for the Arduino IDE: https://github.com/esp8266/Arduino
 [[File:ESP8266_Standalone.png  | 800px]]
@@ Line 133: / Line 133: @@
   *  GPIO0 (IO0) to GND
 */
 void setup() {
@@ Line 148: / Line 146: @@
 }
+</source>
+'''pin mapping:'''
+<source lang = c>
+ESP8266 PINS
+============
+Arduino Pin 0 = IO0
+Arduino Pin 1 = Blue LED
+Arduino Pin 2 = IO2
+Arduino Pin 3 = ??
+Arduino Pin 4 = IO4
+Arduino Pin 5 = IO5
+Arduino Pin 6 = ??
+Arduino Pin 7 = ??
+Arduino Pin 8 = ??
+Arduino Pin 12 = IO12
+Arduino Pin 13 = IO13
+Arduino Pin 14 = IO14
+Arduino Pin 15 = IO15
+</source>
+== UDP sending ==
+<source lang=c>
+#include <ESP8266WiFi.h>
+#include <ESP8266mDNS.h>
+#include <WiFiUdp.h>
+WiFiUDP udp;
+const char* ssid     = "yourWifiName";
+const char* password = "yourPassword";
+const char* hostString = "yourHostName";
+void setup() {
+  Serial.begin(57600);
+  delay(100);
+  Serial.println("\r\nsetup()");
+  WiFi.hostname(hostString);
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(250);
+    Serial.print(".");
+  }
+  Serial.println("");
+  Serial.print("Connected to ");
+  Serial.println(ssid);
+  Serial.print("IP address: ");
+  Serial.println(WiFi.localIP());
+ if (!MDNS.begin(hostString)) {
+    Serial.println("Error setting up MDNS responder!");
+ }
+ Serial.println("mDNS responder started");
+}
+void loop() {
+  IPAddress broadcastIp(192, 168, 0, 110);
+  //IPAddress broadcastIp(255, 255, 255, 255);
+  udp.beginPacket(broadcastIp,5555);
+  udp.write("hi");
+  udp.endPacket();
+  delay(500);
+}
 </source>
 == Reverting Firmware to AT Firmware ==
-This is for the esp-201 module, coming with 4bit flash.
+This is for the esp-201 module, coming with 4mbit (512kB) flash.
 Get the latest Firmware on the espressif bbs home page: