129790badb
*Setup wifi connectivity as a blocking process. As Wifi is required for OTA to function no point moving forward until this is done on startup. This will mean either we connect to an Access Point or we become one. *Added BTC OTA option
103 lines
3.1 KiB
C++
103 lines
3.1 KiB
C++
/*
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WiFiTelnetToSerial - Example Transparent UART to Telnet Server for ESP32
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Copyright (c) 2017 Hristo Gochkov. All rights reserved.
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This file is part of the ESP32 WiFi library for Arduino environment.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <WiFi.h>
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#include <WiFiMulti.h>
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WiFiMulti wifiMulti;
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//how many clients should be able to telnet to this ESP32
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#define MAX_SRV_CLIENTS 1
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const char* ssid = "Derpina";
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const char* password = "randomsharedkey1";
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WiFiServer server(23);
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WiFiClient serverClients[MAX_SRV_CLIENTS];
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void setup() {
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Serial.begin(115200);
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Serial.println("\nConnecting");
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wifiMulti.addAP(ssid, password);
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wifiMulti.addAP("ssid_from_AP_2", "your_password_for_AP_2");
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wifiMulti.addAP("ssid_from_AP_3", "your_password_for_AP_3");
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Serial.println("Connecting Wifi ");
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for (int loops = 10; loops > 0; loops--) {
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if (wifiMulti.run() == WL_CONNECTED) {
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Serial.println("");
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Serial.print("WiFi connected ");
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Serial.print("IP address: ");
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Serial.println(WiFi.localIP());
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break;
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}
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else {
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Serial.println(loops);
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delay(1000);
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}
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}
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if (wifiMulti.run() != WL_CONNECTED) {
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Serial.println("WiFi connect failed");
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delay(1000);
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ESP.restart();
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}
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//start UART and the server
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server.begin();
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server.setNoDelay(true);
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Serial.print("Ready! Use 'telnet ");
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Serial.print(WiFi.localIP());
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Serial.println(" 23' to connect");
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}
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int testval=0;
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void loop() {
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testval=testval+1;
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uint8_t i;
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Serial.println(testval);
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if (wifiMulti.run() == WL_CONNECTED) {
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//check if there are any new clients
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if (server.hasClient()){
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for(i = 0; i < MAX_SRV_CLIENTS; i++){
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//find free/disconnected spot
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if (!serverClients[i] || !serverClients[i].connected()){
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if(serverClients[i]) serverClients[i].stop();
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serverClients[i] = server.available();
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if (!serverClients[i]) Serial.println("available broken");
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Serial.print("New client: ");
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Serial.print(i); Serial.print(' ');
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Serial.println(serverClients[i].remoteIP());
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break;
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server.print(Serial.read());
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}
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}
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if (i >= MAX_SRV_CLIENTS) {
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//no free/disconnected spot so reject
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server.available().stop();
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}
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}
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}
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else {
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Serial.println("WiFi not connected!");
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for(i = 0; i < MAX_SRV_CLIENTS; i++) {
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if (serverClients[i]) serverClients[i].stop();
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}
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delay(1000);
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}
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}
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