Hello,
can onyone tell me why am I seeing this junk at the end of received message?(Please find attached) How can I remove it?
I'm using Visual Studio Code with PlatformIO extension.
Here is my code:
MainTransmitter:
#include <Arduino.h>
#include "433MHzRFTransmitter.h"
void setup() {
RFTransmitterInitialization();
}
void loop() {
RFTransmitterSendMessage(1000);
}
433MHzRFTransmitter.h:
/*
Library used to send and receive unaddressed,
unreliable datagrams via RF modules using Amplitude Shift Keying
*/
#include "RH_ASK.h"
//Library used by RH_ASK, need to be included
#include "SPI.h"
//Creating driver object4
extern RH_ASK rf_driver;
//Time interval between sending message - needed to use millis() instead delay()
extern int transmitterSendingInterval;
//Variable needed to store millis()
extern unsigned long previousTransmitterMillis;
//RF driver initialization
void RFTransmitterInitialization();
/*
Sending message via RF module using send function from RH_ASK library.
@Param - time interval between sending message
*/
void RFTransmitterSendMessage(int sendingTimeInterval);
433MHzRFTransmitter.cpp:
#include "433MHzRFTransmitter.h"
RH_ASK rf_driver;
int transmitterSendingInterval = 1000;
unsigned long previousTransmitterMillis = 0;
void RFTransmitterInitialization() {
rf_driver.init();
}
void RFTransmitterSendMessage(int sendingTimeInterval) {
transmitterSendingInterval = sendingTimeInterval;
if(millis() - previousTransmitterMillis >= transmitterSendingInterval) {
const char *msg = "Hello Raadley!";
rf_driver.send((uint8_t *)msg, strlen(msg));
rf_driver.waitPacketSent();
previousTransmitterMillis = millis();
}
}
MainReceiver:
#include <Arduino.h>
#include "433MHzRFReceiver.h"
void setup() {
RFReceiverInitialization();
Serial.begin(9600);
}
void loop() {
RFReceiverReadMessage();
}
433MHzRFReceiver.h:
#include "RH_ASK.h"
#include "SPI.h"
extern RH_ASK rf_driver;
void RFReceiverInitialization();
//Reads message using Send function from RH_ASK library and prints it in console
void RFReceiverReadMessage();
433MHzRFReceiver.cpp:
#include "433MHzRFReceiver.h"
RH_ASK rf_driver;
void RFReceiverInitialization() {
rf_driver.init();
//Serial.begin(9600);
}
void RFReceiverReadMessage() {
uint8_t buf[14];
uint8_t buflen = sizeof(buf);
if(rf_driver.recv(buf, &buflen)) {
Serial.print("Message received: ");
Serial.println((char *)buf);
}
}
I would be grateful if anyone could help me.
Thank you in advance.