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https://github.com/schinken/esp8266-geigercounter.git
synced 2024-11-22 00:20:20 +01:00
Reverted to 6dc7b63a55
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schinken
parent
8a47d2a644
commit
975ba1cd34
6 changed files with 144 additions and 307 deletions
20
README.md
20
README.md
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@ -8,27 +8,11 @@ Here's some code and schematic to connect your mightyohm.com geiger counter to t
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## compile
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## compile
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The firmware can be built and flashed using the Arduino IDE.
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To compile this code, just clone or download the master branch as a zip and ramp up your arduino library. For this code to work, you need the SimpleTimer-library (http://playground.arduino.cc/Code/SimpleTimer#Download) and the ESP8266 added to your Arduino-IDE as a board (https://github.com/esp8266/Arduino, see install instructions)
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For this, you will need to add ESP8266 support to it by [using the Boards Manager](https://github.com/esp8266/Arduino#installing-with-boards-manager).
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Furthermore, you will also need to install the following libraries using the Library Manager:
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* ArduinoJSON 6.10.1
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* PubSubClient 2.8.0
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* WiFiManager 0.15.0
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## settings
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## settings
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Since this project is using the WifiManager library, the ESP8266 will open up a WiFi Access Point for its initial configuration
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You need to adjust the settings in the settings.h file.
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or if it is unable to connect to the previously configured WiFi.
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The library pretends that said WiFi AP requires a captive portal which triggers a notification on recent android phones.
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Simply connect to the AP with your phone, tap the "Login required"-notification and you should be able to configure everything.
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## usage
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Since we're using the Home Assistant Autodiscovery feature, everything should just work™.
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## license and credits
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## license and credits
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@ -1,37 +0,0 @@
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void saveConfig() {
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DynamicJsonDocument json(512);
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json["mqtt_server"] = mqtt_server;
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json["username"] = username;
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json["password"] = password;
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File configFile = SPIFFS.open("/config.json", "w");
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if (!configFile) {
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return;
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}
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serializeJson(json, configFile);
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configFile.close();
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}
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void loadConfig() {
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if (SPIFFS.begin()) {
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if (SPIFFS.exists("/config.json")) {
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File configFile = SPIFFS.open("/config.json", "r");
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if (configFile) {
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const size_t size = configFile.size();
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std::unique_ptr<char[]> buf(new char[size]);
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configFile.readBytes(buf.get(), size);
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DynamicJsonDocument json(512);
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if (DeserializationError::Ok == deserializeJson(json, buf.get())) {
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strcpy(mqtt_server, json["mqtt_server"]);
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strcpy(username, json["username"]);
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strcpy(password, json["password"]);
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}
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}
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}
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}
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}
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@ -1,207 +1,153 @@
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#include "wifi.h"
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#include <ESP8266WiFi.h>
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#include <ESP8266WiFi.h>
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#include <DNSServer.h>
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#include <ESP8266WebServer.h>
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#include <ArduinoJson.h>
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#include <WiFiManager.h>
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#include <PubSubClient.h>
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#include <PubSubClient.h>
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#include <SoftwareSerial.h>
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#include <SoftwareSerial.h>
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#include <ArduinoOTA.h>
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#include <SimpleTimer.h>
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#include "settings.h"
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#include "settings.h"
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uint8_t mqttRetryCounter = 0;
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WiFiManager wifiManager;
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WiFiClient wifiClient;
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WiFiClient wifiClient;
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PubSubClient mqttClient;
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PubSubClient mqttClient;
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WiFiManagerParameter custom_mqtt_server("server", "mqtt server", mqtt_server, sizeof(mqtt_server));
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WiFiManagerParameter custom_mqtt_user("user", "MQTT username", username, sizeof(username));
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WiFiManagerParameter custom_mqtt_pass("pass", "MQTT password", password, sizeof(password));
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unsigned long lastMqttConnectionAttempt = millis();
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const long mqttConnectionInterval = 60000;
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unsigned long statusPublishPreviousMillis = millis();
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const long statusPublishInterval = 30000;
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char identifier[24];
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#define FIRMWARE_PREFIX "esp8266-geigercounter"
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#define AVAILABILITY_ONLINE "online"
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#define AVAILABILITY_OFFLINE "offline"
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char MQTT_TOPIC_AVAILABILITY[128];
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char MQTT_TOPIC_CPM[128];
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char MQTT_TOPIC_USV[128];
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char MQTT_TOPIC_AUTOCONF_CPM[128];
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char MQTT_TOPIC_AUTOCONF_USV[128];
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SoftwareSerial geigerCounterSerial(PIN_UART_RX, PIN_UART_TX);
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SoftwareSerial geigerCounterSerial(PIN_UART_RX, PIN_UART_TX);
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SimpleTimer timer;
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String serialInput = "";
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char serialInputHelper[RECV_LINE_SIZE];
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bool shouldSaveConfig = false;
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int lastCPM = 0, currentCPM = 0;
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float lastuSv = 0, currentuSv = 0;
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void saveConfigCallback () {
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shouldSaveConfig = true;
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}
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void setup() {
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void setup() {
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// power up wait
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delay(3000);
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delay(3000);
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Serial.begin(9600);
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delay(2000);
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Serial.println("\n");
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Serial.println("Hello from esp8266-geigercounter");
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Serial.printf("Core Version: %s\n", ESP.getCoreVersion().c_str());
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Serial.printf("Boot Version: %u\n", ESP.getBootVersion());
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Serial.printf("Boot Mode: %u\n", ESP.getBootMode());
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Serial.printf("CPU Frequency: %u MHz\n", ESP.getCpuFreqMHz());
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Serial.printf("Reset reason: %s\n", ESP.getResetReason().c_str());
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geigerCounterSerial.begin(9600);
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Serial.begin(115200);
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geigerCounterSerial.begin(BAUD_GEIGERCOUNTER);
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delay(10);
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snprintf(identifier, sizeof(identifier), "GEIGERCTR-%X", ESP.getChipId());
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WiFi.hostname(WIFI_HOSTNAME);
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snprintf(MQTT_TOPIC_AVAILABILITY, 127, "%s/%s/status", FIRMWARE_PREFIX, identifier);
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WiFi.mode(WIFI_STA);
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snprintf(MQTT_TOPIC_CPM, 127, "%s/%s_cpm/state", FIRMWARE_PREFIX, identifier);
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WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
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snprintf(MQTT_TOPIC_USV, 127, "%s/%s_usv/state", FIRMWARE_PREFIX, identifier);
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snprintf(MQTT_TOPIC_AUTOCONF_CPM, 127, "homeassistant/sensor/%s/%s_cpm/config", FIRMWARE_PREFIX, identifier);
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while (WiFi.status() != WL_CONNECTED) {
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snprintf(MQTT_TOPIC_AUTOCONF_USV, 127, "homeassistant/sensor/%s/%s_usv/config", FIRMWARE_PREFIX, identifier);
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Serial.print(".");
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delay(500);
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}
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mqttClient.setClient(wifiClient);
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mqttClient.setServer(MQTT_HOST, 1883);
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ArduinoOTA.setHostname(WIFI_HOSTNAME);
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ArduinoOTA.setPassword(OTA_PASSWORD);
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ArduinoOTA.begin();
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WiFi.hostname(identifier);
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timer.setInterval(UPDATE_INTERVAL_SECONDS * 1000L, updateRadiationValues);
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loadConfig();
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setupWifi();
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mqttClient.setServer(mqtt_server, 1883);
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mqttClient.setKeepAlive(10);
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mqttClient.setBufferSize(2048);
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Serial.print("Hostname: ");
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Serial.println(identifier);
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Serial.print("\nIP: ");
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Serial.println(WiFi.localIP());
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Serial.println("-- Current GPIO Configuration --");
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Serial.print("PIN_UART_RX: ");
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Serial.println(PIN_UART_RX);
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//Disable blue LED
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pinMode(LED_BUILTIN, OUTPUT);
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digitalWrite(LED_BUILTIN, HIGH);
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mqttReconnect();
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}
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}
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void updateRadiationValues() {
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char tmp[8];
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if (currentCPM != lastCPM) {
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String(currentCPM).toCharArray(tmp, 8);
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Serial.print("Sending CPM");
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Serial.println(tmp);
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mqttClient.publish(MQTT_TOPIC_CPM, tmp, true);
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}
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if (currentuSv != lastuSv) {
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String(currentuSv).toCharArray(tmp, 8);
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Serial.print("Sending uSv");
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Serial.println(tmp);
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mqttClient.publish(MQTT_TOPIC_USV, tmp, true);
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}
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lastCPM = currentCPM;
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lastuSv = currentuSv;
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}
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void connectMqtt() {
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while (!mqttClient.connected()) {
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if (mqttClient.connect(WIFI_HOSTNAME, MQTT_TOPIC_LAST_WILL, 1, true, "disconnected")) {
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mqttClient.publish(MQTT_TOPIC_LAST_WILL, "connected", true);
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} else {
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delay(1000);
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}
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}
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}
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void parseReceivedLine(char* input) {
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char segment = 0;
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char *token;
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float uSv = 0;
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float cpm = 0;
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token = strtok(input, delimiter);
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while (token != NULL) {
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switch (segment) {
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// This is just for validation
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case IDX_CPS_KEY: if (strcmp(token, "CPS") != 0) return; break;
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case IDX_CPM_KEY: if (strcmp(token, "CPM") != 0) return; break;
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case IDX_uSv_KEY: if (strcmp(token, "uSv/hr") != 0) return; break;
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case IDX_CPM:
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Serial.printf("Current CPM: %s\n", token);
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cpm = String(token).toInt();
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break;
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case IDX_uSv:
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Serial.printf("Current uSv/hr: %s\n", token);
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uSv = String(token).toFloat();
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break;
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}
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if (segment > 7) {
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// Invalid! There should be no more than 7 segments
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return;
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}
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token = strtok(NULL, delimiter);
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segment++;
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}
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currentuSv = uSv;
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currentCPM = cpm;
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}
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void loop() {
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void loop() {
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connectMqtt();
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timer.run();
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mqttClient.loop();
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mqttClient.loop();
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handleUart();
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if (geigerCounterSerial.available()) {
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char in = (char) geigerCounterSerial.read();
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if (statusPublishInterval <= (millis() - statusPublishPreviousMillis)) {
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serialInput += in;
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statusPublishPreviousMillis = millis();
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updateRadiationValues();
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if (in == '\n') {
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serialInput.toCharArray(serialInputHelper, RECV_LINE_SIZE);
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parseReceivedLine(serialInputHelper);
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serialInput = "";
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}
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}
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if (!mqttClient.connected() && (mqttConnectionInterval <= (millis() - lastMqttConnectionAttempt)) ) {
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// Just in case the buffer gets to big, start from scratch
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lastMqttConnectionAttempt = millis();
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if (serialInput.length() > RECV_LINE_SIZE + 10) {
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mqttReconnect();
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serialInput = "";
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}
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}
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}
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void setupWifi() {
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Serial.write(in);
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wifiManager.setDebugOutput(false);
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wifiManager.setSaveConfigCallback(saveConfigCallback);
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wifiManager.addParameter(&custom_mqtt_server);
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wifiManager.addParameter(&custom_mqtt_user);
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wifiManager.addParameter(&custom_mqtt_pass);
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WiFi.hostname(identifier);
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wifiManager.autoConnect(identifier);
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mqttClient.setClient(wifiClient);
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strcpy(mqtt_server, custom_mqtt_server.getValue());
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strcpy(username, custom_mqtt_user.getValue());
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strcpy(password, custom_mqtt_pass.getValue());
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if (shouldSaveConfig) {
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saveConfig();
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} else {
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//For some reason, the read values get overwritten in this function
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//To combat this, we just reload the config
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//This is most likely a logic error which could be fixed otherwise
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loadConfig();
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}
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}
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}
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ArduinoOTA.handle();
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void resetWifiSettingsAndReboot() {
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wifiManager.resetSettings();
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delay(3000);
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ESP.restart();
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}
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void mqttReconnect() {
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for (int attempt = 0; attempt < 3; ++attempt) {
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if (mqttClient.connect(identifier, username, password, MQTT_TOPIC_AVAILABILITY, 1, true, AVAILABILITY_OFFLINE)) {
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mqttClient.publish(MQTT_TOPIC_AVAILABILITY, AVAILABILITY_ONLINE, true);
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Serial.println("Connected to MQTT Server");
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publishAutoConfig();
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break;
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} else {
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Serial.println("Failed to connect to MQTT Server :(");
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delay(5000);
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}
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}
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}
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boolean isMqttConnected() {
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return mqttClient.connected();
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}
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void publishAutoConfig() {
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char mqttPayload[2048];
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DynamicJsonDocument device(256);
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StaticJsonDocument<64> identifiersDoc;
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JsonArray identifiers = identifiersDoc.to<JsonArray>();
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identifiers.add(identifier);
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device["identifiers"] = identifiers;
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device["manufacturer"] = "MightyOhm LLC";
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device["model"] = "Geiger Counter";
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device["name"] = identifier;
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device["sw_version"] = "0.0.1";
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DynamicJsonDocument cpmSensorPayload(512);
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cpmSensorPayload["device"] = device.as<JsonObject>();
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cpmSensorPayload["availability_topic"] = MQTT_TOPIC_AVAILABILITY;
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cpmSensorPayload["state_topic"] = MQTT_TOPIC_CPM;
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cpmSensorPayload["name"] = identifier + String(" CPM");
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cpmSensorPayload["unit_of_measurement"] = "CPM";
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cpmSensorPayload["unique_id"] = identifier + String("_cpm");
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serializeJson(cpmSensorPayload, mqttPayload);
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mqttClient.publish(MQTT_TOPIC_AUTOCONF_CPM, mqttPayload, true);
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DynamicJsonDocument usvSensorPayload(512);
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usvSensorPayload["device"] = device.as<JsonObject>();
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usvSensorPayload["availability_topic"] = MQTT_TOPIC_AVAILABILITY;
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usvSensorPayload["state_topic"] = MQTT_TOPIC_USV;
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usvSensorPayload["name"] = identifier + String(" uSv");
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usvSensorPayload["unit_of_measurement"] = "µSv/h";
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usvSensorPayload["unique_id"] = identifier + String("_uSv");
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|
||||||
|
|
||||||
serializeJson(usvSensorPayload, mqttPayload);
|
|
||||||
mqttClient.publish(MQTT_TOPIC_AUTOCONF_USV, mqttPayload, true);
|
|
||||||
|
|
||||||
Serial.println("Published MQTT Autoconf");
|
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -1,81 +0,0 @@
|
||||||
|
|
||||||
const char* delimiter = ", ";
|
|
||||||
int lastCPM = 0, currentCPM = 0;
|
|
||||||
float lastuSv = 0, currentuSv = 0;
|
|
||||||
|
|
||||||
byte serialRxBuf[255];
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
void handleUart() {
|
|
||||||
if (geigerCounterSerial.available()) {
|
|
||||||
geigerCounterSerial.readBytesUntil('\n', serialRxBuf, 250);
|
|
||||||
|
|
||||||
parseReceivedLine((char*)serialRxBuf);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
void parseReceivedLine(char* input) {
|
|
||||||
Serial.println(input);
|
|
||||||
|
|
||||||
char segment = 0;
|
|
||||||
char *token;
|
|
||||||
|
|
||||||
float uSv = 0;
|
|
||||||
float cpm = 0;
|
|
||||||
|
|
||||||
token = strtok(input, delimiter);
|
|
||||||
|
|
||||||
while (token != NULL) {
|
|
||||||
|
|
||||||
switch (segment) {
|
|
||||||
|
|
||||||
// This is just for validation
|
|
||||||
case IDX_CPS_KEY: if (strcmp(token, "CPS") != 0) return; break;
|
|
||||||
case IDX_CPM_KEY: if (strcmp(token, "CPM") != 0) return; break;
|
|
||||||
case IDX_uSv_KEY: if (strcmp(token, "uSv/hr") != 0) return; break;
|
|
||||||
|
|
||||||
case IDX_CPM:
|
|
||||||
//Serial.printf("\nCurrent CPM: %s\n", token);
|
|
||||||
cpm = String(token).toInt();
|
|
||||||
break;
|
|
||||||
|
|
||||||
case IDX_uSv:
|
|
||||||
//Serial.printf("Current uSv/hr: %s\n", token);
|
|
||||||
uSv = String(token).toFloat();
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (segment > 7) {
|
|
||||||
// Invalid! There should be no more than 7 segments
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
token = strtok(NULL, delimiter);
|
|
||||||
segment++;
|
|
||||||
}
|
|
||||||
|
|
||||||
currentuSv = uSv;
|
|
||||||
currentCPM = cpm;
|
|
||||||
}
|
|
||||||
|
|
||||||
void updateRadiationValues() {
|
|
||||||
char tmp[8];
|
|
||||||
|
|
||||||
if (currentCPM != lastCPM) {
|
|
||||||
String(currentCPM).toCharArray(tmp, 8);
|
|
||||||
Serial.print("Sending CPM: ");
|
|
||||||
Serial.println(tmp);
|
|
||||||
mqttClient.publish(MQTT_TOPIC_CPM, tmp, true);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (currentuSv != lastuSv) {
|
|
||||||
String(currentuSv).toCharArray(tmp, 8);
|
|
||||||
Serial.print("Sending uSv: ");
|
|
||||||
Serial.println(tmp);
|
|
||||||
mqttClient.publish(MQTT_TOPIC_USV, tmp, true);
|
|
||||||
}
|
|
||||||
|
|
||||||
lastCPM = currentCPM;
|
|
||||||
lastuSv = currentuSv;
|
|
||||||
}
|
|
||||||
29
settings.h.example
Normal file
29
settings.h.example
Normal file
|
|
@ -0,0 +1,29 @@
|
||||||
|
#define IDX_CPS_KEY 0
|
||||||
|
#define IDX_CPM_KEY 2
|
||||||
|
#define IDX_uSv_KEY 4
|
||||||
|
|
||||||
|
#define IDX_CPM 3
|
||||||
|
#define IDX_uSv 5
|
||||||
|
#define IDX_MODE 6
|
||||||
|
|
||||||
|
#define RECV_LINE_SIZE 37
|
||||||
|
|
||||||
|
#define PIN_UART_RX 0 // 4
|
||||||
|
#define PIN_UART_TX 13 // UNUSED
|
||||||
|
|
||||||
|
#define UPDATE_INTERVAL_SECONDS 300L
|
||||||
|
|
||||||
|
#define BAUD_GEIGERCOUNTER 9600
|
||||||
|
|
||||||
|
const char* HOSTNAME = "ESP-GeigerCounter";
|
||||||
|
const char* WIFI_SSID = "----";
|
||||||
|
const char* WIFI_PASSWORD = "----";
|
||||||
|
|
||||||
|
const char* OTA_PASSWORD = "foobar";
|
||||||
|
|
||||||
|
#define MQTT_TOPIC_CPM "sensor/radiation/cpm"
|
||||||
|
#define MQTT_TOPIC_USV "sensor/radiation/uSv"
|
||||||
|
#define MQTT_TOPIC_LAST_WILL "state/sensor/geigercounter"
|
||||||
|
|
||||||
|
const char* mqttHost = "mqtt.core.bckspc.de";
|
||||||
|
const char* delimiter = ", ";
|
||||||
4
wifi.h
4
wifi.h
|
|
@ -1,4 +0,0 @@
|
||||||
char mqtt_server[80] = "example.tld";
|
|
||||||
|
|
||||||
char username[24] = "";
|
|
||||||
char password[24] = "";
|
|
||||||
Loading…
Reference in a new issue