RF Receiver and Transmitter not communicating?

Projects Programming
1

Hi guys,

Bit of a noob with all this stuff here.

Basically I have an Elegoo Uno R3 connected to an RF receiver, and a MakerHawk ATMega (Arduino Nano) connected to the transmitter.

I'm probably doing something wrong (no output on serial monitors).

I tried taking pictures but they came out terrible, so let me explain the connections.

For the Uno, I have the VCC to VCC of receiver, grnd to grnd of receiver, and RX (digital pin 0) of Uno to one of the data ports on the receiver.

For the Nano, I have VCC to VCC of transmitter (5v btw, same as uno), grnd to grnd of transmitter, and TX1 of Nano to data pin on transmitter.

I have the following receiver and transmitter

For the receiver code, I have the following:

#include <RH_ASK.h>
#ifdef RH_HAVE_HARDWARE_SPI
#include <SPI.h> // Not actually used but needed to compile
#endif

RH_ASK driver;

void setup()
{
#ifdef RH_HAVE_SERIAL
    Serial.begin(9600);	  // Debugging only
#endif
    if (!driver.init())
#ifdef RH_HAVE_SERIAL
         Serial.println("init failed");
#else
	;
#endif
}

void loop()
{
    uint8_t buf[RH_ASK_MAX_MESSAGE_LEN];
    uint8_t buflen = sizeof(buf);

    if (driver.recv(buf, &buflen)) // Non-blocking
    {
    	// Message with a good checksum received, dump it.
    	driver.printBuffer("Got:", buf, buflen);
    }
}

and for the transmitter code I have the following:

#include <RH_ASK.h>
#ifdef RH_HAVE_HARDWARE_SPI
#include <SPI.h> // Not actually used but needed to compile
#endif

RH_ASK driver;

void setup()
{
#ifdef RH_HAVE_SERIAL
    Serial.begin(9600);	  // Debugging only
#endif
    if (!driver.init())
#ifdef RH_HAVE_SERIAL
         Serial.println("init failed");
#else
	;
#endif
}

void loop()
{
    const char *msg = "hello";

    driver.send((uint8_t *)msg, strlen(msg));
    driver.waitPacketSent();
    delay(200);
}

Any help would be greatly appreciated!

2

I think I worked it out. I connected the ports differently i.e. receiving on digital pin 11 on receiver and transmitting on digital pin 12 on the transmitter, and changed RH_ASK driver to RH_ASK driver(2000, 11,12) and vice versa... sorry for polluting the forum!

3

You could edit the post and add the word "[SOLVED]" to the tile so people don't bother...