Created project

Started on boot as access point
This commit is contained in:
Roar Fredriksen 2018-03-13 22:07:09 +01:00
parent 923b08adb2
commit 71860d0719
8 changed files with 626 additions and 0 deletions

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/*
Name: AmsToMqttBridge.ino
Created: 3/13/2018 7:40:28 PM
Author: roarf
*/
#include "configuration.h"
#include "accesspoint.h"
#include <HanReader.h>
accesspoint ap;
// the setup function runs once when you press reset or power the board
void setup()
{
// Setup serial port for debugging
Serial.begin(115200);
while (!Serial);
Serial.println("Started...");
// Assign pin for boot as AP
delay(1000);
pinMode(0, INPUT_PULLUP);
// Flash the blue LED, to indicate we can boot as AP now
pinMode(2, OUTPUT);
digitalWrite(2, LOW);
// Initialize the AP
ap.setup(0, Serial);
// Turn off the blue LED
digitalWrite(2, HIGH);
}
// the loop function runs over and over again until power down or reset
void loop()
{
if (!ap.loop())
{
// Only do normal stupp if we're not booted as AP
}
}

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//
//
//
#include "accesspoint.h"
ESP8266WebServer accesspoint::server(80);
void accesspoint::setup(int accessPointButtonPin, Stream& debugger)
{
this->debugger = &debugger;
// Test if we're missing configuration
if (!config.hasConfig())
{
this->print("No config. We're booting as AP. Look for SSID ");
this->println(this->AP_SSID);
isActivated = true;
}
else
{
// Test if we're holding down the AP pin, over 5 seconds
int time = millis() + 5000;
this->print("Press the AP button now to boot as access point");
while (millis() < time)
{
this->print(".");
if (digitalRead(accessPointButtonPin) == LOW)
{
this->println("");
this->println("AP button was pressed. Booting as access point now");
isActivated = true;
break;
}
delay(100);
}
}
if (isActivated)
{
WiFi.disconnect(true);
WiFi.softAPdisconnect(true);
WiFi.mode(WIFI_OFF);
delay(2000);
WiFi.softAP(AP_SSID);
WiFi.mode(WIFI_AP);
/* Setup the DNS server redirecting all the domains to this IP */
dnsServer.setErrorReplyCode(DNSReplyCode::NoError);
dnsServer.start(DNS_PORT, "*", WiFi.softAPIP());
server.on("/", handleRoot);
server.begin(); // Web server start
this->print("Web server is ready for config at http://");
this->print(WiFi.softAPIP());
this->println("/");
}
}
/** Handle root or redirect to captive portal */
void accesspoint::handleRoot() {
Serial.println("Serving / over http...");
server.sendHeader("Cache-Control", "no-cache, no-store, must-revalidate");
server.sendHeader("Pragma", "no-cache");
server.sendHeader("Expires", "-1");
server.setContentLength(CONTENT_LENGTH_UNKNOWN);
server.send(200, "text/html", ""); // Empty content inhibits Content-length header so we have to close the socket ourselves.
server.sendContent(
"<html><head></head><body>"
"<h1>HELLO WORLD!!</h1>"
);
server.sendContent(
"<p>You may want to <a href='/wifi'>config the wifi connection</a>.</p>"
"</body></html>"
);
server.client().stop(); // Stop is needed because we sent no content length
}
bool accesspoint::loop() {
if (isActivated)
{
//DNS
dnsServer.processNextRequest();
//HTTP
server.handleClient();
return true;
}
else
{
return false;
}
}
size_t accesspoint::print(const char* text)
{
if (this->debugger) this->debugger->print(text);
}
size_t accesspoint::println(const char* text)
{
if (this->debugger) this->debugger->println(text);
}
size_t accesspoint::print(const Printable& data)
{
if (this->debugger) this->debugger->print(data);
}
size_t accesspoint::println(const Printable& data)
{
if (this->debugger) this->debugger->println(data);
}

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// ap.h
#ifndef _ACCESSPOINT_h
#define _ACCESSPOINT_h
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <DNSServer.h>
#include "configuration.h"
class accesspoint {
public:
void setup(int accessPointButtonPin, Stream& debugger);
bool loop();
private:
const char* AP_SSID = "AMS2MQTT";
configuration config;
bool isActivated = false;
Stream* debugger = NULL;
// DNS server
const byte DNS_PORT = 53;
DNSServer dnsServer;
size_t print(const char* text);
size_t println(const char* text);
size_t print(const Printable& data);
size_t println(const Printable& data);
// Web server
static void handleRoot();
static ESP8266WebServer server;
};
#endif

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//
//
//
#include "configuration.h"
bool configuration::hasConfig()
{
bool has = false;
EEPROM.begin(EEPROM_SIZE);
has = EEPROM.read(EEPROM_CONFIG_ADDRESS) == EEPROM_CHECK_SUM;
EEPROM.end();
return has;
}
bool configuration::save()
{
int address = EEPROM_CONFIG_ADDRESS;
EEPROM.begin(EEPROM_SIZE);
EEPROM.put(address, EEPROM_CHECK_SUM);
address++;
address += saveString(address, ssid);
address += saveString(address, ssidPassword);
address += saveString(address, mqtt);
address += saveInt(address, mqttPort);
address += saveString(address, mqttClientID);
address += saveString(address, mqttPublishTopic);
address += saveString(address, mqttSubscribeTopic);
if (isSecure()) {
address += saveBool(address, true);
address += saveString(address, mqttUser);
address += saveString(address, mqttPass);
}
else
address += saveBool(address, false);
bool vRet = EEPROM.commit();
EEPROM.end();
return vRet;
}
bool configuration::load()
{
int address = EEPROM_CONFIG_ADDRESS;
bool success = false;
EEPROM.begin(EEPROM_SIZE);
if (EEPROM.read(address) == EEPROM_CHECK_SUM)
{
address++;
address += readString(address, &ssid);
address += readString(address, &ssidPassword);
address += readString(address, &mqtt);
address += readInt(address, &mqttPort);
address += readString(address, &mqttClientID);
address += readString(address, &mqttPublishTopic);
address += readString(address, &mqttSubscribeTopic);
bool secure = false;
address += readBool(address, &secure);
if (secure)
{
address += readString(address, &mqttUser);
address += readString(address, &mqttPass);
}
else
{
mqttUser = 0;
mqttPass = 0;
}
success = true;
}
else
{
ssid = (char*)String("").c_str();
ssidPassword = (char*)String("").c_str();
mqtt = (char*)String("").c_str();
mqttClientID = (char*)String("").c_str();
mqttPublishTopic = (char*)String("").c_str();
mqttSubscribeTopic = (char*)String("").c_str();
mqttUser = 0;
mqttPass = 0;
mqttPort = 1883;
}
EEPROM.end();
return success;
}
bool configuration::isSecure()
{
return (mqttUser != 0) && (String(mqttUser).length() > 0);
}
int configuration::readInt(int pAddress, int *pValue)
{
int lower = EEPROM.read(pAddress);
int higher = EEPROM.read(pAddress + 1);
*pValue = lower + (higher << 8);
return 2;
}
int configuration::saveInt(int pAddress, int pValue)
{
byte lowByte = pValue & 0xFF;
byte highByte = ((pValue >> 8) & 0xFF);
EEPROM.write(pAddress, lowByte);
EEPROM.write(pAddress + 1, highByte);
return 2;
}
int configuration::readBool(int pAddress, bool *pValue)
{
byte y = EEPROM.read(pAddress);
*pValue = (bool)y;
//Serial.printf("Read bool as %#x [%s]\r\n", y, (*pValue ? "true" : "false"));
return 1;
}
int configuration::saveBool(int pAddress, bool pValue)
{
byte y = (byte)pValue;
//Serial.printf("Writing bool as %#x [%s]\r\n", y, (pValue ? "true" : "false"));
EEPROM.write(pAddress, y);
return 1;
}
void configuration::print(Stream& serial)
{
/*
char* ssid;
char* ssidPassword;
char* mqtt;
int mqttPort;
char* mqttClientID;
char* mqttPublishTopic;
char* mqttSubscribeTopic;
bool secure;
char* mqttUser;
char* mqttPass;
*/
serial.println("Configuration:");
serial.println("-----------------------------------------------");
serial.printf("ssid: %s\r\n", this->ssid);
serial.printf("ssidPassword: %s\r\n", this->ssidPassword);
serial.printf("mqtt: %s\r\n", this->mqtt);
serial.printf("mqttPort: %i\r\n", this->mqttPort);
serial.printf("mqttClientID: %s\r\n", this->mqttClientID);
serial.printf("mqttPublishTopic: %s\r\n", this->mqttPublishTopic);
serial.printf("mqttSubscribeTopic: %s\r\n", this->mqttSubscribeTopic);
if (this->isSecure())
{
serial.printf("SECURE MQTT CONNECTION:\r\n");
serial.printf("mqttUser: %s\r\n", this->mqttUser);
serial.printf("mqttPass: %s\r\n", this->mqttPass);
}
serial.println("-----------------------------------------------");
}
template <class T> int configuration::writeAnything(int ee, const T& value)
{
const byte* p = (const byte*)(const void*)&value;
unsigned int i;
for (i = 0; i < sizeof(value); i++)
EEPROM.write(ee++, *p++);
return i;
}
template <class T> int configuration::readAnything(int ee, T& value)
{
byte* p = (byte*)(void*)&value;
unsigned int i;
for (i = 0; i < sizeof(value); i++)
*p++ = EEPROM.read(ee++);
return i;
}
int configuration::readString(int pAddress, char* pString[])
{
int address = 0;
byte vLength = EEPROM.read(pAddress + address);
address++;
//Serial.print("Found length of string: ");
//Serial.println(vLength);
char* buffer = new char[vLength];
for (int i = 0; i<vLength; i++)
{
buffer[i] = EEPROM.read(pAddress + address++);
}
*pString = buffer;
//Serial.print("Read string from EEPROM: [");
//Serial.print(*pString);
//Serial.println("]");
return address;
}
int configuration::saveString(int pAddress, char* pString)
{
int address = 0;
int vLength = strlen(pString) + 1;
//Serial.print("Storing length of string: ");
//Serial.println(vLength);
EEPROM.put(pAddress + address, vLength);
address++;
//Serial.print("Storing string: ");
//Serial.println(pString);
for (int i = 0; i<vLength; i++)
{
EEPROM.put(pAddress + address, pString[i]);
address++;
}
return address;
}

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// config.h
#ifndef _CONFIGURATION_h
#define _CONFIGURATION_h
#include <EEPROM.h>
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
class configuration {
public:
char* ssid;
char* ssidPassword;
char* mqtt;
int mqttPort;
char* mqttClientID;
char* mqttPublishTopic;
char* mqttSubscribeTopic;
char* mqttUser;
char* mqttPass;
bool hasConfig();
bool isSecure();
bool save();
bool load();
void print(Stream& serial);
protected:
private:
const int EEPROM_SIZE = 512;
const byte EEPROM_CHECK_SUM = 124; // Used to check if config is stored. Change if structure changes
const int EEPROM_CONFIG_ADDRESS = 0;
int saveString(int pAddress, char* pString);
int readString(int pAddress, char* pString[]);
int saveInt(int pAddress, int pValue);
int readInt(int pAddress, int *pValue);
int saveBool(int pAddress, bool pValue);
int readBool(int pAddress, bool *pValue);
template <class T> int writeAnything(int ee, const T& value);
template <class T> int readAnything(int ee, T& value);
};
#endif