329 lines
10 KiB
C++
329 lines
10 KiB
C++
//*******************************************************************************
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// SmartThings Arduino WifiEsp Library - Use an Arduino with an ESP-01 for WiFi
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//
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// License
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// (C) Copyright 2017 Dan Ogorchock
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//
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// History
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// 2017-02-20 Dan Ogorchock Created
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// 2018-01-06 Dan Ogorchock Added WiFi.RSSI() data collection
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// 2018-01-06 Dan Ogorchock Simplified the MAC address printout to prevent confusion
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// 2018-02-03 Dan Ogorchock Support for Hubitat
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// 2020-04-05 Dan Ogorchock Tweaked to hopefully prevent lockup
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//*******************************************************************************
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#include "SmartThingsWiFiEsp.h"
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namespace st
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{
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//*******************************************************************************
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// SmartThingsWiFiEsp Constructor - Arduino + ESP-01 board - STATIC IP
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//*******************************************************************************
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SmartThingsWiFiEsp::SmartThingsWiFiEsp(Stream *espSerial, String ssid, String password, IPAddress localIP, uint16_t serverPort, IPAddress hubIP, uint16_t hubPort, SmartThingsCallout_t *callout, String shieldType, bool enableDebug, int transmitInterval) :
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SmartThingsEthernet(localIP, serverPort, hubIP, hubPort, callout, shieldType, enableDebug, transmitInterval, false),
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st_server(serverPort),
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st_espSerial(espSerial)
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{
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ssid.toCharArray(st_ssid, sizeof(st_ssid));
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password.toCharArray(st_password, sizeof(st_password));
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}
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//*******************************************************************************
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// SmartThingsWiFiEsp Constructor - Arduino + ESP-01 board - DHCP
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//*******************************************************************************
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SmartThingsWiFiEsp::SmartThingsWiFiEsp(Stream *espSerial, String ssid, String password, uint16_t serverPort, IPAddress hubIP, uint16_t hubPort, SmartThingsCallout_t *callout, String shieldType, bool enableDebug, int transmitInterval) :
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SmartThingsEthernet(serverPort, hubIP, hubPort, callout, shieldType, enableDebug, transmitInterval, true),
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st_server(serverPort),
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st_espSerial(espSerial)
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{
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ssid.toCharArray(st_ssid, sizeof(st_ssid));
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password.toCharArray(st_password, sizeof(st_password));
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}
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//*****************************************************************************
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//SmartThingsWiFiEsp::~SmartThingsESP8266WiFI()
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//*****************************************************************************
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SmartThingsWiFiEsp::~SmartThingsWiFiEsp()
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{
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}
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//*******************************************************************************
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/// Initialize SmartThingsWiFiEsp Library
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//*******************************************************************************
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void SmartThingsWiFiEsp::init(void)
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{
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int status = WL_IDLE_STATUS; // the Wifi radio's status
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Serial.println(F(""));
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Serial.println(F("Initializing WiFiEsp network. Please be patient..."));
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// Initialize the WiFiEsp library
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WiFi.init(st_espSerial);
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// check for the presence of the shield
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if (WiFi.status() == WL_NO_SHIELD) {
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Serial.println("ESP WiFi shield not present");
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// don't continue
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while (true);
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}
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// attempt to connect to WiFi network
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while (status != WL_CONNECTED) {
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Serial.print("Attempting to connect to WPA SSID: ");
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Serial.println(st_ssid);
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// Connect to WPA/WPA2 network
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status = WiFi.begin(st_ssid, st_password);
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delay(1000);
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}
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if (st_DHCP == false)
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{
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// Set the local IP address
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WiFi.config(st_localIP);
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}
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st_server.begin();
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uint8_t mac[6];
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char buf[20];
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Serial.println(F(""));
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Serial.println(F("Enter the following three lines of data into ST App on your phone!"));
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Serial.print(F("localIP = "));
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Serial.println(WiFi.localIP());
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Serial.print(F("serverPort = "));
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Serial.println(st_serverPort);
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WiFi.macAddress(mac);
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Serial.print(F("MAC Address = "));
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sprintf(buf, "%02X%02X%02X%02X%02X%02X", mac[5], mac[4], mac[3], mac[2], mac[1], mac[0]);
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Serial.println(buf);
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Serial.println(F(""));
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Serial.print(F("SSID = "));
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Serial.println(st_ssid);
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Serial.print(F("PASSWORD = "));
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Serial.println(st_password);
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Serial.print(F("hubIP = "));
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Serial.println(st_hubIP);
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Serial.print(F("hubPort = "));
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Serial.println(st_hubPort);
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Serial.print(F("RSSI = "));
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Serial.println(WiFi.RSSI());
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Serial.println(F(""));
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Serial.println(F("SmartThingsWiFiEsp: Intialized"));
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Serial.println(F(""));
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RSSIsendInterval = 5000;
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previousMillis = millis() - RSSIsendInterval;
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}
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//*****************************************************************************
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// Run SmartThingsWiFiEsp Library
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//*****************************************************************************
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void SmartThingsWiFiEsp::run(void)
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{
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String readString;
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String tempString;
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String strRSSI;
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//if (WiFi.status() != WL_CONNECTED)
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//{
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// Serial.println(F("**********************************************************"));
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// Serial.println(F("**** WiFi Module Disconnected. Attempting restart! ******"));
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// Serial.println(F("**********************************************************"));
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// WiFi.reset();
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// init();
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//}
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//else
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//{
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if (millis() - previousMillis > RSSIsendInterval)
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{
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previousMillis = millis();
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if (RSSIsendInterval < RSSI_TX_INTERVAL)
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{
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RSSIsendInterval = RSSIsendInterval + 1000;
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}
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strRSSI = String("rssi ") + String(WiFi.RSSI());
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send(strRSSI);
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if (_isDebugEnabled)
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{
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Serial.println(strRSSI);
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}
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}
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//}
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WiFiEspClient client = st_server.available();
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if (client) {
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boolean currentLineIsBlank = true;
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while (client.connected()) {
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if (client.available()) {
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char c = client.read();
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//read char by char HTTP request
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if (readString.length() < 200) {
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//store characters to string
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readString += c;
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}
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else
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{
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if (_isDebugEnabled)
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{
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Serial.println(F(""));
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Serial.println(F("SmartThings.run() - Exceeded 200 character limit"));
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Serial.println(F(""));
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}
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}
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// if you've gotten to the end of the line (received a newline
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// character) and the line is blank, the http request has ended,
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// so you can send a reply
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if (c == '\n' && currentLineIsBlank) {
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//now output HTML data header
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tempString = readString.substring(readString.indexOf('/') + 1, readString.indexOf('?'));
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if (tempString.length() > 0) {
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client.println(F("HTTP/1.1 200 OK")); //send new page
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client.println();
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}
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else {
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client.println(F("HTTP/1.1 204 No Content"));
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client.println();
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client.println();
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if (_isDebugEnabled)
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{
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Serial.println(F("No Valid Data Received"));
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}
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}
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break;
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}
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if (c == '\n') {
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// you're starting a new line
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currentLineIsBlank = true;
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}
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else if (c != '\r') {
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// you've gotten a character on the current line
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currentLineIsBlank = false;
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}
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}
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}
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delay(1);
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//stopping client
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client.stop();
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//Handle the received data after cleaning up the network connection
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if (tempString.length() > 0) {
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if (_isDebugEnabled)
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{
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Serial.print(F("Handling request from ST. tempString = "));
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Serial.println(tempString);
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}
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//Pass the message to user's SmartThings callout function
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tempString.replace("%20", " "); //Clean up for Hubitat
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_calloutFunction(tempString);
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}
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readString = "";
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tempString = "";
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}
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}
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//*******************************************************************************
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/// Send Message out over Ethernet to the Hub
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//*******************************************************************************
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void SmartThingsWiFiEsp::send(String message)
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{
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st_client.stop();
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//if (WiFi.status() != WL_CONNECTED)
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//{
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// Serial.println(F("**********************************************************"));
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// Serial.println(F("**** WiFi Module Disconnected. Attempting restart! ******"));
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// Serial.println(F("**********************************************************"));
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// WiFi.reset();
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// init();
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//}
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//Make sure the client is stopped, to free up socket for new conenction
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st_client.stop();
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if (st_client.connect(st_hubIP, st_hubPort))
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{
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st_client.println(F("POST / HTTP/1.1"));
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st_client.print(F("HOST: "));
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st_client.print(st_hubIP);
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st_client.print(F(":"));
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st_client.println(st_hubPort);
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st_client.println(F("CONTENT-TYPE: text"));
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st_client.print(F("CONTENT-LENGTH: "));
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st_client.println(message.length());
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st_client.println();
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st_client.println(message);
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}
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else
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{
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//connection failed;
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if (_isDebugEnabled)
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{
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Serial.println(F("***********************************************************"));
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Serial.println(F("***** SmartThings.send() - Ethernet Connection Failed *****"));
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Serial.println(F("***********************************************************"));
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Serial.print(F("hubIP = "));
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Serial.print(st_hubIP);
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Serial.print(F(" "));
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Serial.print(F("hubPort = "));
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Serial.println(st_hubPort);
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Serial.println(F("***********************************************************"));
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Serial.println(F("**** WiFi Disconnected. ESP8266 should auto-reconnect ****"));
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Serial.println(F("***********************************************************"));
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}
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//WiFi.reset();//End current broken WiFi Connection
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//init(); //Re-Init connection to get things working again
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if (_isDebugEnabled)
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{
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Serial.println(F("***********************************************************"));
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Serial.println(F("****** Attempting to resend missed data *******"));
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Serial.println(F("***********************************************************"));
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}
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st_client.flush();
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st_client.stop();
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if (st_client.connect(st_hubIP, st_hubPort))
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{
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st_client.println(F("POST / HTTP/1.1"));
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st_client.print(F("HOST: "));
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st_client.print(st_hubIP);
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st_client.print(F(":"));
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st_client.println(st_hubPort);
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st_client.println(F("CONTENT-TYPE: text"));
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st_client.print(F("CONTENT-LENGTH: "));
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st_client.println(message.length());
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st_client.println();
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st_client.println(message);
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}
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}
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//if (_isDebugEnabled) { Serial.println(F("WiFi.send(): Reading for reply data "));}
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// read any data returned from the POST
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//while (st_client.connected()) {
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while (st_client.available()) {
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char c = st_client.read(); //gets byte from ethernet buffer
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//if (_isDebugEnabled) { Serial.print(c); } //prints byte to serial monitor
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//}
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}
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delay(1);
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st_client.stop();
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}
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}
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