95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
//************************************************************
|
|
// this is a simple example that uses the painlessMesh library to
|
|
// setup a node that logs to a central logging node
|
|
// The logServer example shows how to configure the central logging nodes
|
|
//************************************************************
|
|
#include "painlessMesh.h"
|
|
|
|
#define MESH_PREFIX "whateverYouLike"
|
|
#define MESH_PASSWORD "somethingSneaky"
|
|
#define MESH_PORT 5555
|
|
|
|
Scheduler userScheduler; // to control your personal task
|
|
painlessMesh mesh;
|
|
|
|
// Prototype
|
|
void receivedCallback( uint32_t from, String &msg );
|
|
|
|
size_t logServerId = 0;
|
|
|
|
// Send message to the logServer every 10 seconds
|
|
Task myLoggingTask(10000, TASK_FOREVER, []() {
|
|
#if ARDUINOJSON_VERSION_MAJOR==6
|
|
DynamicJsonDocument jsonBuffer(1024);
|
|
JsonObject msg = jsonBuffer.to<JsonObject>();
|
|
#else
|
|
DynamicJsonBuffer jsonBuffer;
|
|
JsonObject& msg = jsonBuffer.createObject();
|
|
#endif
|
|
msg["topic"] = "sensor";
|
|
msg["value"] = random(0, 180);
|
|
|
|
String str;
|
|
#if ARDUINOJSON_VERSION_MAJOR==6
|
|
serializeJson(msg, str);
|
|
#else
|
|
msg.printTo(str);
|
|
#endif
|
|
if (logServerId == 0) // If we don't know the logServer yet
|
|
mesh.sendBroadcast(str);
|
|
else
|
|
mesh.sendSingle(logServerId, str);
|
|
|
|
// log to serial
|
|
#if ARDUINOJSON_VERSION_MAJOR==6
|
|
serializeJson(msg, Serial);
|
|
#else
|
|
msg.printTo(Serial);
|
|
#endif
|
|
Serial.printf("\n");
|
|
});
|
|
|
|
void setup() {
|
|
Serial.begin(115200);
|
|
|
|
mesh.setDebugMsgTypes( ERROR | STARTUP | CONNECTION ); // set before init() so that you can see startup messages
|
|
|
|
mesh.init( MESH_PREFIX, MESH_PASSWORD, &userScheduler, MESH_PORT, WIFI_AP_STA, 6 );
|
|
mesh.onReceive(&receivedCallback);
|
|
|
|
// Add the task to the your scheduler
|
|
userScheduler.addTask(myLoggingTask);
|
|
myLoggingTask.enable();
|
|
}
|
|
|
|
void loop() {
|
|
// it will run the user scheduler as well
|
|
mesh.update();
|
|
}
|
|
|
|
void receivedCallback( uint32_t from, String &msg ) {
|
|
Serial.printf("logClient: Received from %u msg=%s\n", from, msg.c_str());
|
|
|
|
// Saving logServer
|
|
#if ARDUINOJSON_VERSION_MAJOR==6
|
|
DynamicJsonDocument jsonBuffer(1024 + msg.length());
|
|
DeserializationError error = deserializeJson(jsonBuffer, msg);
|
|
if (error) {
|
|
Serial.printf("DeserializationError\n");
|
|
return;
|
|
}
|
|
JsonObject root = jsonBuffer.as<JsonObject>();
|
|
#else
|
|
DynamicJsonBuffer jsonBuffer;
|
|
JsonObject& root = jsonBuffer.parseObject(msg);
|
|
#endif
|
|
if (root.containsKey("topic")) {
|
|
if (String("logServer").equals(root["topic"].as<String>())) {
|
|
// check for on: true or false
|
|
logServerId = root["nodeId"];
|
|
Serial.printf("logServer detected!!!\n");
|
|
}
|
|
Serial.printf("Handled from %u msg=%s\n", from, msg.c_str());
|
|
}
|
|
}
|