ESP32 – Ebyte LORA E32 433T30D V8

Tagged: ESP32 - LORA E32 433T30D V8

This topic has 3 replies, 2 voices, and was last updated 4 months, 1 week ago by petoga.

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- 30 December 2024 at 15:00 #32011
  petoga
  Participant
  Hi Renzo,
  I have trouble with config Lora E32 433T30D, I see it can sendmessage with code 1: success, but they can not receive. I dont know why and how to solve, I use ESP32 doit devkit V1, it do not support softwareSerial so I use hardwareSerial (Serial2) for connect Lora module.
  I have info after config as below for 1st module:
  HEAD : 10010001 145 91
  
  AddH : 0
  AddL : 2
  Chan : 17 -> 433MHz
  
  SpeedParityBit : 0 -> 8N1 (Default)
  SpeedUARTDatte : 11 -> 9600bps (default)
  SpeedAirDataRate : 10 -> 2.4kbps (default)
  OptionTrans : 1 -> Fixed transmission (first three bytes can be used as high/low address and channel)
  OptionPullup : 1 -> TXD, RXD, AUX are push-pulls/pull-ups
  OptionWakeup : 0 -> 250ms (default)
  OptionFEC : 1 -> Turn on Forward Error Correction Switch (Default)
  OptionPower : 0 -> 20dBm (Default)
  —————————————-
  Success
  Waiting for incoming data…
  Data available: 0
  CHECK: No_data
  
  And 2nd Module as below:
  HEAD : 11000011 195 C3
  
  AddH : 0
  AddL : 3
  Chan : 17 -> 433MHz
  
  SpeedParityBit : 0 -> 8N1 (Default)
  SpeedUARTDatte : 11 -> 9600bps (default)
  SpeedAirDataRate : 10 -> 2.4kbps (default)
  OptionTrans : 1 -> Fixed transmission (first three bytes can be used as high/low address and channel)
  OptionPullup : 1 -> TXD, RXD, AUX are push-pulls/pull-ups
  OptionWakeup : 0 -> 250ms (default)
  OptionFEC : 1 -> Turn on Forward Error Correction Switch (Default)
  OptionPower : 0 -> 20dBm (Default)
  —————————————-
  Success
  Waiting for incoming data…
  Data available: 0
  CHECK: No_data
  
  I do not if I miss something, so pl help!
  
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- 10 January 2025 at 09:21 #32036
  Renzo Mischianti
  Keymaster
  Hi Petoga,
  to use different HardwareSerial pins, you must use the correct constructor
```
LoRa_E32(byte txE32pin, byte rxE32pin, HardwareSerial* serial, byte auxPin, byte m0Pin, byte m1Pin, UART_BPS_RATE bpsRate, uint32_t serialConfig = SERIAL_8N1);
// -------------------------------------
```
  so the first example constructor become
```
LoRa_E32 e32ttl100(RX_PIN, TX_PIN, &Serial2, 35, M0, M1, UART_BPS_RATE_9600); //  RX AUX M0 M1
```
  Bye Renzo
- 11 January 2025 at 13:31 #32044
  petoga
  Participant
  Hi Renzo,
  Thanks for your support, I have update my code with your comment, I also check voltage of all lora pin, I get M0 = M1 = 0v, AUX = 3.3v, Tx = 3.3v, Rx = 3.3v, for both module. But can not get receive data from both.
  AUX, RX, TX I use resistor 4.7k to 3.3v and M1, M0 use 1k ohm to GND (cause if dont use resistor it always 3.3v even though I set it LOW . Serial output as below:
  CHECK: No_data
  No_data
  Pin GPIO27: 0.00 V
  Pin GPIO33: 0.00 V
  Message sent successfully!
  Module acknowledged with response:
  Waiting for incoming data…
  Data available: 0
  CHECK: No_data
  
  Below is update code:
  `#include <Wire.h>
  #include <HardwareSerial.h>
  #include “LoRa_E32.h”
  //#define LED 14
  #define BUTT 12
  #define M1 33
  #define M0 27
  int counting = 0;
  #define RX_ESP 16 // RXD2 16
  #define TX_ESP 17 // TXD2 17
  #define AUX 5
  HardwareSerial mySerial(2);
  //LoRa_E32(byte txE32pin, byte rxE32pin, HardwareSerial* serial, byte auxPin, byte m0Pin, byte m1Pin, UART_BPS_RATE bpsRate, uint32_t serialConfig = SERIAL_8N1);
  LoRa_E32 e32ttl( RX_ESP ,TX_ESP, &mySerial, AUX, M0, M1,UART_BPS_RATE_9600,SERIAL_8N1);
  // ————————————-
  void printParameters(struct Configuration configuration);
  void printModuleInformation(struct ModuleInformation moduleInformation);
  void SendData(String str);
  void SendData(String str);
  void setMode(int m0, int m1);
  void waitForAux();
  String revData();
  void voltage();
  void printParameters(struct Configuration configuration);
  void printModuleInformation(struct ModuleInformation moduleInformation);
  //The setup function is called once at startup of the sketch
  //
  const int adcPins[] = {27, 33 }; //32, 33, 34, 35, 36, 39, 25, 26, 0, 2, 4, 12, 13, 14, 15, 27};
  //const int adcPins[] = { 16, 17, 5, 27, 33 };
  const int numPins = sizeof(adcPins) / sizeof(adcPins[0]);
  void setup()
  {
  Serial.begin(115200);
  //pinMode(LED, OUTPUT);
  pinMode(BUTT, INPUT);
  pinMode(M0, OUTPUT);
  pinMode(M1, OUTPUT);
  pinMode(AUX, INPUT);
  //digitalWrite(LED, LOW);
  setMode(LOW, LOW);
  digitalWrite(M0, LOW);
  digitalWrite(M1, LOW);
  //Serial1.begin(9600, SERIAL_8N1, RX_PIN, TX_PIN);
  mySerial.begin(9600, SERIAL_8N1, RX_ESP, TX_ESP);
  e32ttl.begin();
  waitForAux();
  delay(100);
  //
  ResponseStructContainer info = e32ttl.getModuleInformation();
  //
  delay(100);
  ResponseStructContainer c;
  c = e32ttl.getConfiguration();
  Configuration configuration = *(Configuration*) c.data;
  configuration.ADDL = 0x02;
  configuration.ADDH = 0x00;
  configuration.CHAN = 0x17;
  configuration.SPED.uartBaudRate = 0x04 ;//19200;
  configuration.SPED.airDataRate = 0x03; //2.4k
  configuration.OPTION.fec = 1;
  configuration.OPTION.transmissionPower = 0;
  configuration.OPTION.wirelessWakeupTime = 0;
  configuration.SPED.uartParity = 0;
  configuration.OPTION.ioDriveMode = IO_D_MODE_PUSH_PULLS_PULL_UPS; // Pull-up management
  Serial.print(F(“OptionFEC : “)); Serial.print(configuration.OPTION.fec, BIN);Serial.print(” -> “); Serial.println(configuration.OPTION.getFECDescription());
  Serial.print(F(“OptionPower : “)); Serial.print(configuration.OPTION.transmissionPower, BIN);Serial.print(” -> “); Serial.println(configuration.OPTION.getTransmissionPowerDescription());
  configuration.OPTION.fixedTransmission = FT_FIXED_TRANSMISSION;
  e32ttl.setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE);
  Serial.println(“LoRa Sender Initialized”);
  c.close();
  printParameters(configuration);
  // —————————
  //
  
  digitalWrite(M0, LOW);
  digitalWrite(M1, LOW);
  }
  
  // The loop function is called in an endless loop
  void loop()
  {
  voltage();
  // ResponseStatus rs = e32ttl.sendFixedMessage(0,3,17, “HELLO LORA_3”);
  ResponseStatus rs = e32ttl.sendBroadcastFixedMessage(0x17, “HELLO LORA_3”);
  if (rs.code == 1) {
  Serial.println(“Message sent successfully!”);
  ResponseContainer response = e32ttl.receiveMessage();
  if (response.status.code == 1) {
  Serial.print(“Module acknowledged with response: “);
  Serial.println(response.data);
  } else {
  Serial.println(“No acknowledgment received.”);
  }
  } else {
  Serial.println(“Failed to send message.”);
  }
  //
  String res2 = revData();
  delay(100);
  Serial.println(“CHECK: ” + res2);
  if (res2.substring(0,12) == “HELLO LORA_2”) {
  Serial.println(“NHAN: ” + res2);
  delay(50);
  }
  else {
  Serial.println(res2);
  }
  delay(1000);
  //
  
  }
  //
  void printParameters(struct Configuration configuration) {
  Serial.println(“—————————————-“);
  
  Serial.print(F(“HEAD : “)); 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 : “)); Serial.println(configuration.ADDH, HEX);
  Serial.print(F(“AddL : “)); Serial.println(configuration.ADDL, HEX);
  Serial.print(F(“Chan : “)); Serial.print(configuration.CHAN, HEX); Serial.print(” -> “); Serial.println(configuration.getChannelDescription());
  Serial.println(F(” “));
  Serial.print(F(“SpeedParityBit : “)); Serial.print(configuration.SPED.uartParity, BIN);Serial.print(” -> “); Serial.println(configuration.SPED.getUARTParityDescription());
  Serial.print(F(“SpeedUARTDatte : “)); Serial.print(configuration.SPED.uartBaudRate, BIN);Serial.print(” -> “); Serial.println(configuration.SPED.getUARTBaudRate());
  Serial.print(F(“SpeedAirDataRate : “)); Serial.print(configuration.SPED.airDataRate, BIN);Serial.print(” -> “); Serial.println(configuration.SPED.getAirDataRate());
  
  Serial.print(F(“OptionTrans : “)); Serial.print(configuration.OPTION.fixedTransmission, BIN);Serial.print(” -> “); Serial.println(configuration.OPTION.getFixedTransmissionDescription());
  Serial.print(F(“OptionPullup : “)); Serial.print(configuration.OPTION.ioDriveMode, BIN);Serial.print(” -> “); Serial.println(configuration.OPTION.getIODroveModeDescription());
  Serial.print(F(“OptionWakeup : “)); Serial.print(configuration.OPTION.wirelessWakeupTime, BIN);Serial.print(” -> “); Serial.println(configuration.OPTION.getWirelessWakeUPTimeDescription());
  Serial.print(F(“OptionFEC : “)); Serial.print(configuration.OPTION.fec, BIN);Serial.print(” -> “); Serial.println(configuration.OPTION.getFECDescription());
  Serial.print(F(“OptionPower : “)); Serial.print(configuration.OPTION.transmissionPower, BIN);Serial.print(” -> “); Serial.println(configuration.OPTION.getTransmissionPowerDescription());
  Serial.println(“—————————————-“);
  }
  
  void SendData(String str) {
  String s = str + “: ” + String(counting);
  counting++;
  ResponseStatus rs = e32ttl.sendBroadcastFixedMessage(0x17, s);
  //ResponseStatus rs = e32ttl.sendFixedMessage(0x00, 0x03, 0x17, s);
  Serial.println(“Code: ” + String(rs.code));
  if (rs.code != 1) {
  Serial.println(“Error Ping: ” + rs.getResponseDescription());
  }
  else {
  Serial.println(“Message have been send: ” + s + ” ” + rs.getResponseDescription());
  }
  // Serial.println(String(rs.code) + “:” + rs.getResponseDescription());
  delay(200);
  }
  
  String revData() {
  String res =””;
  Serial.println(“Waiting for incoming data…”);
  Serial.println(“Data available: ” + String(e32ttl.available()));
  if (e32ttl.available() > 0){
  ResponseContainer rs = e32ttl.receiveMessage();
  if (rs.status.code == 1) {
  String data = rs.data;
  Serial.println(“Received: ” + data);
  return data;
  }
  }
  return “No_data”;
  }
  
  void setMode(int m0, int m1) {
  digitalWrite(M0, m0);
  digitalWrite(M1, m1);
  delay(10);
  }
  
  void waitForAux() {
  while (digitalRead(AUX) == LOW) {
  delay(1);
  }
  }
  
  void voltage() {
  for (int i = 0; i < numPins; i++) {
  int pin = adcPins[i];
  int adcValue = analogRead(pin); // Đọc giá trị ADC
  float voltage = adcValue * 3.3 / 4095.0; // Chuyển đổi giá trị ADC sang điện áp
  Serial.print(“Pin GPIO”);
  Serial.print(pin);
  Serial.print(“: “);
  Serial.print(voltage);
  Serial.println(” V”);
  }
  }
  Please help! Thank Renzo!
  
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- 12 January 2025 at 08:02 #32047
  petoga
  Participant
  Hi Renzo,
  They have been communicated each other, I change UART_BPS_RATE_9600 for serial speed and configuration.SPED.uartBaudRate = 0x03 and it works.
  I try to set higher like 19200 for all but after upload it in restart loop. Just 9600 is suitable, I dont know why.
  Thank Renzo!
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