Data Size Not Match 7 error ESP32

[Pedro]

Hi,

I am using an ESP32-WROOM-32UE and an E32900T30D.

I run this code: /*
* LoRa E32-TTL-100 – ESP32
* Configuração do módulo e leitura das informações
* Adaptado para usar os pinos 16 RX e 17 TX
*
* Conexões:
* M0 —– 3.3V
* M1 —– 3.3V
* TX —– GPIO 16 pull up resistor
* RX —– GPIO 17 pull up resistor
* AUX —– 3.3v pull up resistor
* VCC —– 5V
* GND —– GND
*/

#include “Arduino.h”
#include “LoRa_E32.h”

// Define pinos de comunicação UART2 (ESP32)
#define RXD2 16 // Pino RX do ESP32 (conectado ao TX do LoRa)
#define TXD2 17 // Pino TX do ESP32 (conectado ao RX do LoRa)

// Inicializa o módulo LoRa E32 usando apenas o Serial2
LoRa_E32 e32ttl100(&Serial2);

void printParameters(struct Configuration configuration);
void printModuleInformation(struct ModuleInformation moduleInformation);

void setup() {
Serial.begin(9600); // Comunicação com o PC
Serial2.begin(19200, SERIAL_8E1, RXD2, TXD2);
//Serial2.begin(9600, SERIAL_8N1, RXD2, TXD2); // Comunicação com o módulo LoRa

delay(500);
Serial.println(“Inicializando LoRa E32…”);

// Inicia comunicação com o módulo
e32ttl100.begin();

// Obtém a configuração atual do módulo
ResponseStructContainer c = e32ttl100.getConfiguration();
Configuration configuration = *(Configuration*)c.data;

Serial.println(c.status.getResponseDescription());
Serial.println(c.status.code);

printParameters(configuration);
c.close();

// Obtém informações do módulo
ResponseStructContainer cMi = e32ttl100.getModuleInformation();
ModuleInformation mi = *(ModuleInformation*)cMi.data;

Serial.println(cMi.status.getResponseDescription());
Serial.println(cMi.status.code);

printModuleInformation(mi);
cMi.close();
}

void loop() {
// Nada no loop por enquanto
}

void printParameters(struct Configuration configuration) {
Serial.println(“—————————————-“);
Serial.print(F(“HEAD BIN: “)); Serial.print(configuration.HEAD, BIN);
Serial.print(” “); Serial.print(configuration.HEAD, DEC);
Serial.print(” “); Serial.println(configuration.HEAD, HEX);

Serial.println(F(” “));
Serial.print(F(“AddH BIN: “)); Serial.println(configuration.ADDH, BIN);
Serial.print(F(“AddL BIN: “)); Serial.println(configuration.ADDL, BIN);
Serial.print(F(“Chan BIN: “)); Serial.print(configuration.CHAN, DEC);
Serial.print(” -> “); Serial.println(configuration.getChannelDescription());

Serial.println(F(” “));
Serial.print(F(“SpeedParityBit BIN : “)); Serial.print(configuration.SPED.uartParity, BIN);
Serial.print(” -> “); Serial.println(configuration.SPED.getUARTParityDescription());
Serial.print(F(“SpeedUARTDataRate BIN : “)); Serial.print(configuration.SPED.uartBaudRate, BIN);
Serial.print(” -> “); Serial.println(configuration.SPED.getUARTBaudRate());
Serial.print(F(“SpeedAirDataRate BIN : “)); Serial.print(configuration.SPED.airDataRate, BIN);
Serial.print(” -> “); Serial.println(configuration.SPED.getAirDataRate());

Serial.print(F(“OptionTrans BIN : “)); Serial.print(configuration.OPTION.fixedTransmission, BIN);
Serial.print(” -> “); Serial.println(configuration.OPTION.getFixedTransmissionDescription());
Serial.print(F(“OptionPullup BIN : “)); Serial.print(configuration.OPTION.ioDriveMode, BIN);
Serial.print(” -> “); Serial.println(configuration.OPTION.getIODroveModeDescription());
Serial.print(F(“OptionWakeup BIN : “)); Serial.print(configuration.OPTION.wirelessWakeupTime, BIN);
Serial.print(” -> “); Serial.println(configuration.OPTION.getWirelessWakeUPTimeDescription());
Serial.print(F(“OptionFEC BIN : “)); Serial.print(configuration.OPTION.fec, BIN);
Serial.print(” -> “); Serial.println(configuration.OPTION.getFECDescription());
Serial.print(F(“OptionPower BIN : “)); Serial.print(configuration.OPTION.transmissionPower, BIN);
Serial.print(” -> “); Serial.println(configuration.OPTION.getTransmissionPowerDescription());

Serial.println(“—————————————-“);
}

void printModuleInformation(struct ModuleInformation moduleInformation) {
Serial.println(“—————————————-“);
Serial.print(F(“HEAD BIN: “)); Serial.print(moduleInformation.HEAD, BIN);
Serial.print(” “); Serial.print(moduleInformation.HEAD, DEC);
Serial.print(” “); Serial.println(moduleInformation.HEAD, HEX);

Serial.print(F(“Freq.: “)); Serial.println(moduleInformation.frequency, HEX);
Serial.print(F(“Version : “)); Serial.println(moduleInformation.version, HEX);
Serial.print(F(“Features : “)); Serial.println(moduleInformation.features, HEX);
Serial.println(“—————————————-“);
}
and get: !�
�ܠ��J��1���1!���!��L!�1�Inicializando LoRa E32…
Data size not match!
7
—————————————-
HEAD BIN: 11000001 193 C1

AddH BIN: 11000001
AddL BIN: 11000001
Chan BIN: 178 -> 588MHz

SpeedParityBit BIN : 10 -> 8E1
SpeedUARTDataRate BIN : 100 -> 19200bps
SpeedAirDataRate BIN : 101 -> 19.2kbps

Thanks, and I am waiting for an answer

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