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Add API subscription to Arduino sketch

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This commit is contained in:
Daniele Viganò 2020-06-03 23:53:25 +02:00
parent b6653c510d
commit bb0e043bf9
Signed by: dani
GPG Key ID: DB49AFC03C40EE02
1 changed files with 32 additions and 23 deletions
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55
arduino/tempLightSensor/tempLightSensor.ino
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@ -9,11 +9,10 @@
#define AREF_VOLTAGE 3.3
// const String serverName = "sensor.server.domain";
const size_t capacity = 2 * JSON_OBJECT_SIZE(3) + JSON_OBJECT_SIZE(2) + 20;
const size_t capacity = JSON_OBJECT_SIZE(2) + 2 * JSON_OBJECT_SIZE(3) + 110;
DynamicJsonDocument json(capacity);
JsonObject payload = json.createNestedObject("payload");
DynamicJsonDocument telemetry(capacity);
JsonObject payload = telemetry.createNestedObject("payload");
JsonObject temp = payload.createNestedObject("temperature");
unsigned int counter = 0;
@ -30,7 +29,8 @@ struct netConfig {
};
netConfig config;
const String URL = "/telemetry/";
const String apiURL = "/api/subscribe/";
const String telemetryURL = "/telemetry/";
const int postDelay = 10 * 1000;
void setup(void) {
@ -38,6 +38,8 @@ void setup(void) {
analogReference(EXTERNAL);
StaticJsonDocument<20> api;
byte mac[6];
char serial[9];
@ -80,7 +82,10 @@ void setup(void) {
Serial.println("DEBUG: clock updated via NTP.");
#endif
json["device"] = serial;
api["serial"] = serial;
postData(config, apiURL, api);
telemetry["device"] = serial;
// payload["id"] = serverName;
}
@ -93,9 +98,9 @@ void loop(void) {
float tempC = (tempVoltage - 0.5) * 100 ;
if (NTPValid) {
json["clock"] = timeClient.getEpochTime();
telemetry["clock"] = timeClient.getEpochTime();
} else {
json["clock"] = NULL; // converted into 0
telemetry["clock"] = NULL; // converted into 0
}
payload["light"] = photocellReading;
@ -103,14 +108,30 @@ void loop(void) {
temp["raw"] = tempReading;
temp["volts"] = tempVoltage;
if (EthernetClient client = client.connect(config.address, config.port)) {
postData(config, telemetryURL, telemetry);
if (counter == 6 * 120) { // Update clock every 6 times * 10 sec * 120 minutes = 2 hrs
timeClient.update();
counter = 0;
#if DEBUG_TO_SERIAL
Serial.println("DEBUG: clock updated via NTP.");
#endif
} else {
counter++;
}
delay(postDelay);
}
void postData(const netConfig &postAPI, const String &URL, const DynamicJsonDocument &json) {
if (EthernetClient client = client.connect(postAPI.address, postAPI.port)) {
client.print("POST ");
client.print(URL);
client.println(" HTTP/1.1");
client.print("Host: ");
client.print(config.address);
client.print(postAPI.address);
client.print(":");
client.println(config.port);
client.println(postAPI.port);
client.println("Content-Type: application/json");
client.print("Content-Length: ");
client.println(measureJsonPretty(json));
@ -125,16 +146,4 @@ void loop(void) {
Serial.println("\n<<<");
#endif
}
if (counter == 6 * 120) { // Update clock every 6 times * 10 sec * 120 minutes = 2 hrs
timeClient.update();
counter = 0;
#if DEBUG_TO_SERIAL
Serial.println("DEBUG: clock updated via NTP.");
#endif
} else {
counter++;
}
delay(postDelay);
}