[Renzo Mischianti]

Hi,
I re-do all the specified test, and the library work correctly, the problem is born when you don’t set RSSI enabled on all devices, but only in one.
Bye Renzo

[Renzo Mischianti]

Hi Mark,
refer to the article, the documentation that is maintained is that.
PCF8575 i2c 16 bit digital I/O expander

The pcf8575 doesn’t have sufficient power to light 5mm led, use It to put GND to the Catode.
Bye Renzo

[Renzo Mischianti]

Hi Sebastian,
to manage additional await, you can put 1 to this variable.

Bye Renzo

[Renzo Mischianti]

Hi Sebastian,
to enable DEBUG uncomment this line.

An additional test is to enable automatic response by setting the value to ‘a’ at this line.

Bye Renzo

[Renzo Mischianti]

Hi mark,
I replicate the test with an esp32 dev kit v1 and a pcf8575 with 16 led, and It’s work without a problem, so if I can’t replicate your problem, I can only do some supposition to try to help.

For the scheme follow the site.
Bye Renzo

[Renzo Mischianti]

Hi,
It’s improbably that there is a compatibility problem, I think there is a mistake on the wiring or power supply to the LEDs.
Bye Renzo

[Renzo Mischianti]

Hi Mark,
I retest the library again, and It’s working ok.

Can you do an i2c scanner and paste the result here?

#include <Wire.h>

void setup()
{
  Wire.begin();

  Serial.begin(9600);
  Serial.println("\nI2C Scanner");
}

void loop()
{
  byte error, address;
  int nDevices;

  Serial.println("Scanning...");

  nDevices = 0;
  for(address = 1; address < 127; address++ )
  {
    // The i2c_scanner uses the return value of
    // the Write.endTransmisstion to see if
    // a device did acknowledge to the address.
    Wire.beginTransmission(address);
    error = Wire.endTransmission();

    if (error == 0)
    {
      Serial.print("I2C device found at address 0x");
      if (address<16)
        Serial.print("0");
      Serial.print(address,HEX);
      Serial.println("  !");

      nDevices++;
    }
    else if (error==4)
    {
      Serial.print("Unknow error at address 0x");
      if (address<16)
        Serial.print("0");
      Serial.println(address,HEX);
    }
  }
  if (nDevices == 0)
    Serial.println("No I2C devices found\n");
  else
    Serial.println("done\n");

  delay(5000);           // wait 5 seconds for next scan
}

you must have a this result

Scanning... 
I2C device found at address 0x20  !
done
 
Scanning... 
I2C device found at address 0x20  ! 
done
 
Scanning... 
I2C device found at address 0x20  ! 
done

Bye Renzo

[Renzo Mischianti]

Thanks for sharing George,
It’s very interesting, but I think we can get the same result by sending a binary structure like in this article.

Ebyte LoRa E220 device for Arduino, esp32 or esp8266: manage Wake On Radio and sends structured data – 5

It can be interesting to verify if It’s apply some compression system.
Bye Renzo

[Renzo Mischianti]

Hi RD,
as I already say, I think that doing a Gateway (to manage a limited number of clients) it’s very simple, and the fastest way is to do It.
If you need some help, ask without a problem.
Bye Renzo

[Renzo Mischianti]

Hi Aishwarya,
first of all, connect AUX pin to have real feedback.
Then pay attention to the power supply and ensure the wiring of M0 and M1 is correct.
Bye Renzo

[Renzo Mischianti]

Hi playzino,
I publish the available commands, and I think they are not present.
Bye Renzo

[Renzo Mischianti]

Hi Dusan,
Does It possible that you don’t set the correct mode for the devices?

E220 and E32 have different management of WOR, and you must manage with the correct setMode.

Bye Renzo

[Renzo Mischianti]

Hi George,
I did some test, and the library work correctly, I think you don’t do the correct configuration on the booth device. To send and receive the RSSI, you must set the RSSI parameter on the boot device

	configuration.TRANSMISSION_MODE.enableRSSI = RSSI_ENABLED;

Use the precompiled configuration for sender and receiver that you can find in the examples.

Bye Renzo

[Renzo Mischianti]

Hi George,
you probably received a memory leak because you do the wrong setting of M0 and M1, and the return of the device is wrong, and the repeating of that operation put MCU in an inconsistent state.
Try to do a full connection and retry.
Bye Renzo

[Renzo Mischianti]

Hi RD,
sorry for the late response, but I lost this message.

No, there isn’t a way to get all information on SX, but I think the simplest solution is to take a microcontroller with wifi and do a gateway.
It’s very simple to manage, and you can use every mqtt server and similar, or you can expose directly via websocket the messages arrived.

You can find something here.
EByte LoRa E32 gateway: manage via REST and WebSocket (esp8266, esp32) – 1

Bye Renzo

[Author]

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