[Renzo Mischianti]

Hi Davidd,
if you use Ethernet Shield please refer to the article

Send email with attachments (v2.x library): Arduino Ethernet – 1

there are some limitation on secure connection and in Memory size like you can see on this topic

Using EMail Sender library with Arduino UNO Ethernet shield with Ethernet.h library

Bye Renzo

[Renzo Mischianti]

Hi Ayush,
I write an article on broadcast, I think you can find the solution on this article

Ebyte LoRa E32 device for Arduino, esp32 or esp8266: fixed transmission – 4

Bye Renzo

[Renzo Mischianti]

Hi Fernando,
you must reduce the DigitalInput object to a byte like so:

byte byteValReadAll = 0;

void setVal(uint8_t pin, uint8_t value){
	if (value==HIGH){
		byteValReadAll = byteValReadAll | bit(pin);
	}else{
		byteValReadAll = byteValReadAll & ~bit(pin);
	}

}

[...]
	setVal(P0, digitalInput.p0);
	setVal(P1, digitalInput.p1);
	setVal(P2, digitalInput.p2);
	setVal(P3, digitalInput.p3);
	setVal(P4, digitalInput.p4);
	setVal(P5, digitalInput.p5);
	setVal(P6, digitalInput.p6);
	setVal(P7, digitalInput.p7);
	
	Serial.println(byteValReadAll, BIN);
[...]

Bye Renzo

[Renzo Mischianti]

Yes, all LOW.
Bye Renzo

[Renzo Mischianti]

Hi Orvasson,
The flash memory use a SPI protocol, if I remember exist a specified library to simplify the usage without limitation.
Bye Renzo

[Renzo Mischianti]

Hi Claudio,
check with tester of m0 and M1 are correctly setted.
Bye Renzo

[Renzo Mischianti]

Hi Hector,
check Claudio configurazione, you must add the object Mame.
Bye Renzo

[Renzo Mischianti]

Sometime reboot loop can be generated by

• wrong wiring
• wrong usage
• and the e32 that have some waste on flash, to fix this problem you need the usb-ttl EByte device with the original software

Bye Renzo

[Renzo Mischianti]

Hi,
the usage of Serial2 can’t work, because you do the begin and inside the library I do begin again.
To use custom pin on esp32 you can refer this article

Ebyte LoRa E32 device for Arduino, esp32 or esp8266: library – Part 2

You can’t do

    LoRa_E32 e32ttl100(&Serial2, AUX_PIN, M0_PIN, M1_PIN);
    Serial2.begin(9600, SERIAL_8N1, RX2_PIN, TX2_PIN);
    e32ttl100.begin();

because you start the serial 2 times
you must use something like this

LoRa_E32(RX2_PIN, TX2_PIN, &Serial2, AUX_PIN, M0_PIN, M1_PIN);

Bye Renzo

[Renzo Mischianti]

Hi Josh,
check the logic level of M0 and M1 if raise correctly, with 5v power sometime It’s hard to change.
Check if are high.
If you have a FDTI use software serial to debug or to control the e32, debug information It’s important to discover the problem.

Bye Renzo

[Renzo Mischianti]

Hi Claudio,
the configuration is wrong, you don’t initialize the Serial, the library do it for you.
You can look at this topic with the same esp32 configuration problem.

EByte LoRa e32 not working on esp32: sends a random number, the other reads

If you need more information ask without problem.

Bye Renzo

[Renzo Mischianti]

Hi Josh,
please give us a connection schema, so we can help you.
And try to uncomment the line in the library

#define LoRa_E32_DEBUG

and retry.
Bye Renzo

[Renzo Mischianti]

Hi
I try to contact Ashining, but no response from they.
Sorry I think this productor have very low interest and support to Arduino ecosystem.
Bye Renzo

[Renzo Mischianti]

Hi Gilles,
yes you don’t see any difference because I think you must use SSClient for secure connection, and I must add secure support to the library.
I don’t have a w5500 shield, if I find one I try to add support.

You can try to add https://github.com/OPEnSLab-OSU/SSLClient to the library and instantiate the SecureClient with this.

Bye Renzo

[Renzo Mischianti]

Hi Orvasson,
I had lost your message (I need a moderator).

But what Paloy said is correct, you can connect various i2c devices and communicate with them via the device address.

Some devices have the address configurable through pins such as the various pcf8574 pcf8591 etc ..

PCF8574 i2c digital I/O expander

other can be programmed via code, other have fixed address.

You can check the address of the devices connected with a simple program like this:

/*
 * i2c scanner
 * Renzo Mischianti www.mischianti.org
 */
#include <Wire.h>

void setup() {
  Wire.begin();
  Serial.begin(115200);
  while (!Serial) {delay(100);};
  Serial.println();
  Serial.println("I2C Scanner");
}

void loop() {
  byte error, address;
  int nDevices;
  Serial.println("Scanning...");
  nDevices = 0;
  for(address = 1; address < 127; 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.println(address,HEX);
      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);
}

Bye Renzo

[Author]

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