Read string from serial port and send it to gateway
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According to:
https://github.com/mysensors/Arduino/blob/master/libraries/MySensors/MyMessage.cpp
There is no set method that accepts String type. You could use this one instead:
MyMessage& MyMessage::set(const char* value)
Greetings,
Tim -
Thanks
Bu ti don't know how to fix this in my sketch :-( , can you please point me to the right direction ??Andreas H
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Hmmm, I'm out, when it comes to pure C, so I'm not sure if I'm really able to help you.
The first question that comes to my mind, when I read your sketch is: when does the loop end, that reads the characters?
If the string you receive ends for example with a newline, you could use something like: https://www.arduino.cc/en/Serial/ReadBytesUntil
where buffer is char[] and could be passed to msg.set().Please keep in mind that the message content must not exceed 25 bytes.
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Opps . i missed that in this sketch :-(
But the main problem is howto send a string och many chars :-(
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Hello
I dont get any error when i compile, so i will make a test later today.
Thanks
Andreas H -
This did the trick.
gw.send(msg.set(readString.c_str()));
Thanks for this :-)Andreas H
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This did the trick.
gw.send(msg.set(readString.c_str()));
Thanks for this :-)Andreas H
@Andreas-Henriksson
Hello. I need something like this ...
Can you show your functional version?
Thanks... -
Hello, i don't using this any more but i found this on my laptop.
I can't confirm that i work, but it the latest version i have.#include <SPI.h> #include <MySensor.h> #include <DHT.h> #define CHILD_ID_INFO 0 #define CHILD_ID_SOC 1 #define CHILD_ID_STATE 2 #define CHILD_ID_ERROR 3 #define CHILD_ID_SET_STATE 4 #define CHILD_ID_TEMP 5 #define CHILD_ID_HUM 6 //Pin #define HUMIDITY_SENSOR_DIGITAL_PIN 3 MySensor gw; MyMessage info(CHILD_ID_INFO, V_VAR1); MyMessage soc(CHILD_ID_SOC, V_VAR2); MyMessage state(CHILD_ID_STATE, V_VAR3); MyMessage error(CHILD_ID_ERROR, V_VAR4); MyMessage temp(CHILD_ID_TEMP, V_TEMP); MyMessage hum(CHILD_ID_HUM, V_HUM); DHT dht; //DHT Sensor const byte numChars = 25; char receivedChars[numChars]; float lastTemp; float lastHum; boolean metric = true; //MySensorr int mySensorType; int mySensorMsg; String mySensorStr; String mySensorRaw; String mySensorRawSoc; String mySensorStrSoc; //Serial Read boolean newData = false; void setup() { dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN); gw.begin(incomingMessage, 1, false); Serial.begin(115200); // Send the sketch version information to the gateway and Controller gw.sendSketchInfo("Mover", "1.0"); // Register all sensors to gateway (they will be created as child devices) gw.present(CHILD_ID_INFO, S_CUSTOM); gw.present(CHILD_ID_SOC, S_CUSTOM); gw.present(CHILD_ID_STATE, S_CUSTOM); gw.present(CHILD_ID_ERROR, S_CUSTOM); gw.present(CHILD_ID_SET_STATE, S_CUSTOM); gw.present(CHILD_ID_TEMP, S_TEMP); gw.present(CHILD_ID_HUM, S_HUM); metric = gw.getConfig().isMetric; } void loop() { recvWithStartEndMarkers(); showNewData(); gw.process(); } void incomingMessage(const MyMessage &message) { // We only expect one type of message from controller. But we better check anyway. if (message.type == 28) { if (message.getInt() == 99) { float temperature = dht.getTemperature(); //if (isnan(temperature)) //{ // Serial.println("Failed reading temperature from DHT"); //} if (temperature != lastTemp) { lastTemp = temperature; if (!metric) { temperature = dht.toFahrenheit(temperature); } //Serial.print("T: "); //Serial.println(temperature); } gw.send(temp.set(temperature, 1)); float humidity = dht.getHumidity(); //if (isnan(humidity)) //{ // Serial.println("Failed reading humidity from DHT"); //} if (humidity != lastHum) { lastHum = humidity; //Serial.print("H: "); //Serial.println(humidity); } gw.send(hum.set(humidity, 1)); } else { //Serial.println(message.type); //Serial.print("Incoming change for sensor:"); //Serial.println(message.sensor); //Serial.print(", New status: "); Serial.print(message.getInt()); } } //} } void recvWithStartEndMarkers() { static boolean recvInProgress = false; static byte ndx = 0; char startMarker = '<'; char endMarker = '>'; char rc; // if (Serial.available() > 0) { while (Serial.available() > 0 && newData == false) { rc = Serial.read(); if (recvInProgress == true) { if (rc != endMarker) { receivedChars[ndx] = rc; ndx++; if (ndx >= numChars) { ndx = numChars - 1; } } else { receivedChars[ndx] = '\0'; // terminate the string recvInProgress = false; ndx = 0; newData = true; } } else if (rc == startMarker) { recvInProgress = true; } } } void showNewData() { if (newData == true) { mySensorRawSoc = receivedChars; mySensorStrSoc = mySensorRawSoc.substring(2, 6); mySensorRaw = receivedChars; mySensorStr = mySensorRaw.substring(2); switch (receivedChars[0]) { case '1': gw.send(info.set(mySensorStr.c_str())); break; case '2': gw.send(soc.set(mySensorStrSoc.c_str())); break; case '3': gw.send(state.set(mySensorStr.c_str())); break; case '4': gw.send(error.set(mySensorStr.c_str())); break; } /*Serial.print ("type: "); Serial.println (receivedChars[0]); Serial.print ("Msg: "); Serial.println (receivedChars[2]); Serial.println (mySensorRaw); Serial.println (mySensorStr); */ mySensorRawSoc = ""; mySensorStrSoc = ""; mySensorRaw = ""; mySensorStr = ""; newData = false; } }
