kommentare eingefügt, led blinkt fehlercodes
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1 changed files with 122 additions and 62 deletions
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@ -41,21 +41,22 @@ void init_pins() {
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*/
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pinMode(REED_PIN, INPUT_PULLUP);
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pinMode(LED_PIN, OUTPUT);
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digitalWrite(LED_PIN, LOW);
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digitalWrite(LED_PIN, HIGH);
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Serial.println("[Pin] LED and REED initialized");
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}
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void init_wifi() {
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/*
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* first turn wifi off and than in access point mode
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* maybe turn of is not needed!
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* Creates the ssl context. Turns wifi off and than into
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* access point mode.
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* TODO: is 'turn of' needed!
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*/
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ESP8266WiFiMulti wifi;
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WiFi.mode(WIFI_OFF);
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WiFi.mode(WIFI_STA);
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wifi.addAP(SSID_1, PSK_1);
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wifi.addAP(SSID_2, PSK_2);
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wifi.addAP(SSID_2, NULL);
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Serial.println("[Wifi] Wifi initialized");
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wifi.run();
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if (WiFi.status() == WL_CONNECTED) {
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@ -63,8 +64,10 @@ void init_wifi() {
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Serial.println(WiFi.SSID());
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Serial.print("[Wifi] IP: ");
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Serial.println(WiFi.localIP());
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set_clock();
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} else {
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Serial.println("[Wifi] Error: Failed to connect");
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signal_wifi_failed();
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}
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}
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@ -83,23 +86,95 @@ door_state read_door_state() {
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return DOOR_CLOSED;
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}
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void toggle_led(door_state state) {
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void signal_door_changed() {
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/*
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* turns onboard led on or depends on the door state
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* LED signal, if door is opened
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*/
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if (state == DOOR_OPEN) {
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uint8_t count = 2;
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for(uint8_t i=0; i!= count; ++i) {
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digitalWrite(LED_PIN, LOW);
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} else {
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delay(100);
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digitalWrite(LED_PIN, HIGH);
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delay(100);
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}
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}
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void signal_send_successful() {
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/*
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* LED signal, if new status was send successful
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*/
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uint8_t count = 5;
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for(uint8_t i=0; i!= count; ++i) {
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digitalWrite(LED_PIN, LOW);
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delay(100);
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digitalWrite(LED_PIN, HIGH);
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delay(100);
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}
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}
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void signal_clock_failed() {
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/*
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* LED signal, if time setting failed
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*/
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uint8_t count = 2;
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for(uint8_t i=0; i!= count; ++i) {
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digitalWrite(LED_PIN, LOW);
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delay(500);
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digitalWrite(LED_PIN, HIGH);
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delay(500);
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}
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delay(2000);
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}
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void signal_wifi_failed() {
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/*
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* LED signal, if wifi initialication was failed
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*/
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uint8_t count = 3;
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for(uint8_t i=0; i!= count; ++i) {
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digitalWrite(LED_PIN, LOW);
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delay(500);
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digitalWrite(LED_PIN, HIGH);
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delay(500);
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}
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delay(2000);
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}
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void signal_connect_failed() {
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/*
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* LED signal, if door is opened
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*/
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uint8_t count = 4;
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for(uint8_t i=0; i!= count; ++i) {
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digitalWrite(LED_PIN, LOW);
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delay(500);
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digitalWrite(LED_PIN, HIGH);
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delay(500);
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}
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delay(2000);
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}
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void signal_send_failed() {
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/*
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* LED signal, if door is opened
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*/
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uint8_t count = 5;
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for(uint8_t i=0; i!= count; ++i) {
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digitalWrite(LED_PIN, LOW);
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delay(500);
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digitalWrite(LED_PIN, HIGH);
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delay(500);
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}
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delay(2000);
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}
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void set_clock() {
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/*
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* We need time for certificate authorization
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*/
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configTime(TZ_STRING, NTP_URL);
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Serial.print("Waiting for NTP time sync: ");
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Serial.print("[Clock] Waiting for NTP time sync");
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time_t now = time(nullptr);
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while (now < 8 * 3600 * 2) {
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delay(500);
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@ -109,15 +184,14 @@ void set_clock() {
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Serial.println("");
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struct tm timeinfo;
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gmtime_r(&now, &timeinfo);
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Serial.print("Current time: ");
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Serial.print(asctime(&timeinfo));
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Serial.print("[Clock] Current time: ");
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Serial.println(asctime(&timeinfo));
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}
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int send_status(door_state state) {
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/*
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* geht die initialisierung mit einem byte länge?
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* terminiert strcpy den status mit \0?
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* Inits wifi (if needed) and send the status
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*/
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char status[2] = "";
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@ -135,17 +209,19 @@ int send_status(door_state state) {
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BearSSL::PrivateKey client_key(CLIENT_KEY);
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client.setTrustAnchors(&server_cert);
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client.setClientRSACert(&client_cert, &client_key);
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delay(500);
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delay(200);
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Serial.println("[Ctx] SSL Context initialized");
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Serial.print("[Ctx] Free Heap: ");
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Serial.println(ESP.getFreeHeap());
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delay(500);
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delay(200);
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if (WiFi.status() != WL_CONNECTED) {
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init_wifi();
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}
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Serial.printf("[Send] Connect to %s:%i\n", SERVER_URL, SERVER_PORT);
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client.connect(SERVER_URL, SERVER_PORT);
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if (!client.connected()) {
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Serial.println("[Send] Can't connect to server");
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Serial.print("[Send] SSL Error: ");
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Serial.println(client.getLastSSLError());
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signal_send_failed();
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client.stop();
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return 1;
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} else {
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@ -154,34 +230,19 @@ int send_status(door_state state) {
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Serial.println("[Send] Connection successful established");
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Serial.printf("[Send] Send status: %s\n", status);
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client.write(status);
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signal_send_successful();
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}
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return 0;
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}
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void setup() {
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/*
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* things to do once at boot time
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*/
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init_serial();
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Serial.print("[Init] Free Heap ( after serial init): ");
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Serial.println(ESP.getFreeHeap());
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init_pins();
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Serial.print("[Init] Free Heap (after pins init): ");
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Serial.println(ESP.getFreeHeap());
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init_wifi();
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Serial.print("[Init] Free Heap (after wifi init): ");
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Serial.println(ESP.getFreeHeap());
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delay(500);
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set_clock();
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Serial.print("[Init] Free Heap (after setting clock): ");
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Serial.println(ESP.getFreeHeap());
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delay(500);
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}
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void loop() {
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@ -192,11 +253,10 @@ void loop() {
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new_door_state = read_door_state();
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if (new_door_state != current_door_state) {
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Serial.printf("[Loop] Status has changed to %i\n", new_door_state);
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toggle_led(new_door_state);
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send_status(new_door_state);
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signal_door_changed();;
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if (send_status(new_door_state) == 0) {
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current_door_state = new_door_state;
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}
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Serial.print("[Loop] Free Heap: ");
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Serial.println(ESP.getFreeHeap());
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}
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delay(FREQUENCY);
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}
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