Hello everyone,
I have a problem initialising the MFRC522 library. I am writing a program for a node in a mesh network using the painlessMesh library. This node contains an IR beam break sensor with an RFID reader. When there is a low signal on the sensor, the program is to recognise the vehicle by using the RFID reader. Individually, the codes work. When I want to combine them together, strange content pops up on the serial port monitor from which I understand nothing.
Code:
#include <SPI.h>
#include <MFRC522.h>
#include <painlessMesh.h>
#define RST_PIN 22
#define SS_PIN 11
#define SENSORPIN 2
int sensorState = 0, lastState = 0;
#define MESH_SSID "essa"
#define MESH_PASSWORD "essa"
#define MESH_PORT 5555
String carName = "";
String nodeName = "Bramka1";
Scheduler userScheduler;
painlessMesh mesh;
MFRC522 mfrc522 (SS_PIN, RST_PIN);
void sendMessage() ; // callback func
Task sendTask( TASK_SECOND * 1 , TASK_FOREVER, &sendMessage );
// everthying should be done in callback func
void sendMessage(){
digitalWrite(SENSORPIN, HIGH); // turn on the pullup
// Serialize the message
DynamicJsonDocument doc(1024);
doc["Sensor"] = "IR_Break_Beam";
doc["Wezel"] = nodeName;
if (sensorState == HIGH ) {
doc["Stan"] = "nie przekroczono";
}
if (sensorState == LOW){
doc["Stan"] = "przekroczono";
}
doc["Pojazd"] = carName;
String msg ;
serializeJson(doc, msg); //
mesh.sendBroadcast( msg );
Serial.println("");
Serial.println(msg);
}
void receivedCallback(uint32_t from, String &msg) {
Serial.println("Message ="); Serial.println(msg);
String json = msg.c_str();;
DynamicJsonDocument doc(1024);
}
void newConnectionCallback(uint32_t nodeId) {
// Nowe połączenie
}
void changedConnectionCallback() {
// Zmiana połączenia
}
void setup() {
Serial.begin(115200);
pinMode(SENSORPIN, INPUT);
mesh.setDebugMsgTypes(ERROR | STARTUP | CONNECTION);
mesh.init(MESH_SSID, MESH_PASSWORD, &userScheduler, MESH_PORT);
mesh.onReceive(&receivedCallback);
mesh.onNewConnection(&newConnectionCallback);
mesh.onChangedConnections(&changedConnectionCallback);
mesh.setContainsRoot(true);
mfrc522.PCD_Init(); // Init MFRC522
SPI.begin(); // Init SPI bus
//delay(4);
mfrc522.PCD_DumpVersionToSerial(); // Show details of PCD - MFRC522 Card Reader details
userScheduler.addTask( sendTask );
sendTask.enable();
}
void loop() {
/*Show UID for Card/Tag on serial monitor*/
byte letter;
String content= "";
for (byte i = 0; i < mfrc522.uid.size; i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
content.concat(String(mfrc522.uid.uidByte[i], HEX));
}
content.toUpperCase();
if (content.substring(1) == "DC 60 B6 79") /*UID for the Card/Tag we want to give access Replace with your card UID*/
{
carName = "WV";
}
//if (content.substring(1) == "76 F4 EF 2B") /*UID for the Card/Tag we want to give access Replace with your card UID*/
//{
// carName = "Audi";
//}
else {
carName = "nie rozpoznano";
}
sensorState = digitalRead(SENSORPIN);
lastState = sensorState;
mesh.update();
}
neomilium
commented
8 months ago
Hello everyone, I have a problem initialising the MFRC522 library. I am writing a program for a node in a mesh network using the painlessMesh library. This node contains an IR beam break sensor with an RFID reader. When there is a low signal on the sensor, the program is to recognise the vehicle by using the RFID reader. Individually, the codes work. When I want to combine them together, strange content pops up on the serial port monitor from which I understand nothing.
Code:
Serial port monitor: