ESP8266 Wi-Fi
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| // Adafruit ESP8266 WiFi | |
| // Copyright (C) 2019 https://www.roboticboat.uk | |
| // fa032de3-9b62-4b21-a867-ae14a5200c2a | |
| // | |
| // This program is free software: you can redistribute it and/or modify | |
| // it under the terms of the GNU General Public License as published by | |
| // the Free Software Foundation, either version 3 of the License, or | |
| // (at your option) any later version. | |
| // | |
| // This program is distributed in the hope that it will be useful, | |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| // GNU General Public License for more details. | |
| // | |
| // You should have received a copy of the GNU General Public License | |
| // along with this program. If not, see <https://www.gnu.org/licenses/>. | |
| // These Terms shall be governed and construed in accordance with the laws of | |
| // England and Wales, without regard to its conflict of law provisions. | |
| #include <ESP8266WiFi.h> | |
| #include <WiFiClient.h> | |
| // Press down the GPIO0 button | |
| // Press down the Reset button | |
| // Release the Reset button | |
| // Release the GPIO0 button | |
| // The board should display a faint red light | |
| // Now upload the script | |
| // Network name and password | |
| const char *ssid = "Yardstick Robotic Boat"; | |
| const char *password = "password1"; | |
| WiFiServer server(80); | |
| void setup() { | |
| // Open connection to the User Serial Monitor | |
| Serial.begin(9600); | |
| // Setup a local WiFi hotspot | |
| WiFi.mode(WIFI_AP); | |
| // Wait one second | |
| delay(1000); | |
| // Update the User | |
| Serial.println(); | |
| Serial.print("Configuring WiFi"); | |
| // Login to the local WiFi hotspot | |
| WiFi.softAP(ssid, password); | |
| // Obtain the IP address on the WiFi network | |
| IPAddress myIP = WiFi.softAPIP(); | |
| // Start the WiFi Server | |
| server.begin(); | |
| // Update the User | |
| Serial.println("HTTP server started"); | |
| } | |
| void loop() { | |
| // Is there a client on the WiFi server | |
| WiFiClient client = server.available(); | |
| // Check if a client connection exists | |
| if (client) { | |
| // We have a connected client | |
| // Read the http request | |
| String reg = client.readStringUntil('\r'); | |
| // Update the User with the request seen | |
| Serial.println(reg); | |
| // The webserver sends a request to the client | |
| client.print("Received message "); | |
| client.print(reg); | |
| client.flush(); | |
| } | |
| } |
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| // Adafruit ESP8266 WiFi | |
| // Copyright (C) 2019 https://www.roboticboat.uk | |
| // 1473b8dd-8dcf-4a2c-a6a5-44e9aa50aaa8 | |
| // | |
| // This program is free software: you can redistribute it and/or modify | |
| // it under the terms of the GNU General Public License as published by | |
| // the Free Software Foundation, either version 3 of the License, or | |
| // (at your option) any later version. | |
| // | |
| // This program is distributed in the hope that it will be useful, | |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| // GNU General Public License for more details. | |
| // | |
| // You should have received a copy of the GNU General Public License | |
| // along with this program. If not, see <https://www.gnu.org/licenses/>. | |
| // These Terms shall be governed and construed in accordance with the laws of | |
| // England and Wales, without regard to its conflict of law provisions. | |
| #include <ESP8266WiFi.h> | |
| #include <WiFiClient.h> | |
| // Press down the GPIO0 button | |
| // Press down the Reset button | |
| // Release the Reset button | |
| // Release the GPIO0 button | |
| // The board should display a faint red light | |
| // Now upload the script | |
| // Network name and password | |
| const char *ssid = "Yardstick Robotic Boat"; | |
| const char *password = "password1"; | |
| WiFiServer server(80); | |
| void setup() { | |
| // Open connection to the User Serial Monitor | |
| Serial.begin(9600); | |
| // Setup a local WiFi hotspot | |
| WiFi.mode(WIFI_AP); | |
| // Wait one second | |
| delay(1000); | |
| // Update the User | |
| Serial.println("\nConfiguring WiFi"); | |
| // Login to the local WiFi hotspot | |
| WiFi.softAP(ssid, password); | |
| // Obtain the IP address on the WiFi network | |
| IPAddress myIP = WiFi.softAPIP(); | |
| // Start the WiFi Server | |
| server.begin(); | |
| // Update the User | |
| Serial.println("HTTP server started"); | |
| } | |
| void loop() { | |
| // Is there a client on the WiFi server | |
| WiFiClient client = server.available(); | |
| // Check if a client connection exists | |
| if (client) { | |
| // We have a connected client | |
| // Read the http request | |
| String reg = client.readStringUntil('\r'); | |
| // Update the User with the request seen | |
| //Serial.println(reg); | |
| // Parse the string | |
| extractMessage(reg); | |
| //parseString(reg); | |
| // The webserver sends a request to the client | |
| client.print("Received message "); | |
| client.print(reg); | |
| client.flush(); | |
| } | |
| } | |
| void extractMessage(String msg){ | |
| // Below is an example of a message a,b,c,d,e,f,g | |
| // Notice GET / and HTTP/1.1 are added to the string | |
| // GET /a,b,c,d,e,f,g HTTP/1.1 | |
| // Can ignore this information as not required | |
| if (msg == "GET /favicon.ico HTTP/1.1") return; | |
| int i = msg.indexOf('/') + 1; | |
| int j = msg.indexOf(' ',i); | |
| // Update the User on the Serial monitor | |
| //Serial.print('['); | |
| Serial.println(msg.substring(i,j)); | |
| //Serial.println(']'); | |
| } | |
| void parseString(String msg) { | |
| // Below is an example of a message a,b,c,d,e,f,g | |
| // Notice GET / and HTTP/1.1 are added to the string | |
| // GET /a,b,c,d,e,f,g HTTP/1.1 | |
| // Length of the Url message | |
| int commaLocation = 0; | |
| int i = msg.indexOf('/') + 1; | |
| String cmd = ""; | |
| // Return if there are no information | |
| if (i <= 0) return; | |
| // Loop over the String message | |
| while (i < msg.length() && msg.indexOf(',',i) >= 0){ | |
| // Find the location of the comma in the string | |
| commaLocation = msg.indexOf(',', i); | |
| // Extract the String between the commas | |
| cmd = msg.substring(i, commaLocation); | |
| // Update the User on the Serial monitor | |
| Serial.println(cmd); | |
| // Move on to the next comma | |
| i = commaLocation + 1; | |
| } | |
| // Now find the last string | |
| commaLocation = msg.indexOf(' ', i); | |
| // Extract the String between the commas | |
| cmd = msg.substring(i, commaLocation); | |
| // Update the User on the Serial monitor | |
| Serial.println(cmd); | |
| } |