Lora E32+arduino nano, Not receiving any message

[tstmrtamir]

Thank you very much for your library and tutorial. I’m using two Arduino nano and Lora E32 to send and receive. both have same connection:

Lora module: E32-TTL-1W
Arduino: Nano 3

GND -> G
VCC -> 3V3
AUX ->D5
TX->D2
RX->D3
M1->D6
M0->D7

sender code:

LoRa_E32 e32ttl(2, 3, 5, 7, 6);

void setup() {
Serial.begin(9600);
while (!Serial) {
;
}
delay(500);

e32ttl.begin();

ResponseStructContainer c;
c = e32ttl.getConfiguration();
Configuration configuration = *(Configuration*) c.data;
Serial.println(c.status.getResponseDescription());
Serial.println(c.status.code);

// configuration.ADDL = 0x01;
// configuration.ADDH = 0x00;
// configuration.CHAN = 0x02;
// configuration.OPTION.fixedTransmission = FT_FIXED_TRANSMISSION;
// e32ttl.setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE);
printParameters(configuration);
c.close();
}

void loop() {
delay(5000);

Serial.println("Send message to 03 00 04");
ResponseStatus rs = e32ttl.sendFixedMessage(0, 3, 0x04, "Message to 00 03 04 device");

Serial.println(rs.getResponseDescription());

}

receiver code:

LoRa_E32 e32ttl(2, 3, 5, 7, 6);

void setup() {
Serial.begin(9600);
while (!Serial) {
;

}
delay(500);

e32ttl.begin();
ResponseStructContainer c;
c = e32ttl.getConfiguration();
Configuration configuration = *(Configuration*) c.data;
Serial.println(c.status.getResponseDescription());
Serial.println(c.status.code);

// configuration.ADDL = 0x03;
// configuration.ADDH = 0x00;
// configuration.CHAN = 0x04;
// configuration.OPTION.fixedTransmission = FT_FIXED_TRANSMISSION;
// e32ttl.setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE);
printParameters(configuration);
c.close();
}

void loop() {
if (e32ttl.available() > 1){
Serial.println("GOT message");
ResponseContainer rs = e32ttl.receiveMessage();
String message = rs.data;

Serial.println(rs.status.getResponseDescription());
Serial.println(message);
}
}

I got “Success” on my sender side. but the receiver is not receiving any message, it is not going inside the condition: if (e32ttl.available() > 1){}. Can you check my code and connections please Mr.Mischianti

• This topic was modified 1 year, 8 months ago by tstmrtamir.

[Elkez]

I have the same problem. However, in the diagram in the description https://mischianti.org/lora-e32-device-for-arduino-esp32-or-esp8266-library-part-2/#Fully_connected_schema
is a different connection. Which one is valid?
Pins 2,3,4,5,6 are used.
Elkez.

[Renzo Mischianti]

Hi Elkez,
enable debug and post all the output of the 2 microcontrollers.
Bye Renzo

[alexcary21]

Ensure proper wiring, matching configurations, and check for potential interference. Debug step by step, verify code integrity, and ensure adequate power supply for both Lora E32 and Arduino Nano.

[Author]

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