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Thank you for replying to my previous comment,
I have bought the LoRa E32 433T30D from the following Link , along with the TX433 JKD-20p antenna. When I checked using RF Setting software with USB to TTL, there is a message saying ‘No Response from devices.’ I have three LoRa devices, and all of them have the same message.
When I checked using the GetConfiguration library example with an ESP32 board and following the schematic you provided, I got the following resultsRX MIC ---> -1 TX MIC ---> -1 AUX ---> 15 M0 ---> 21 M1 ---> 19 Init AUX pin! Init M0 pin! Init M1 pin! Begin ex Begin Hardware Serial Begin MODE NORMAL! AUX HIGH! Complete! MODE PROGRAM/SLEEP! AUX HIGH! Complete! AUX HIGH! Complete! MODE NORMAL! AUX HIGH! Complete! MODE PROGRAM/SLEEP! AUX HIGH! Complete! Available buffer: 0 structure size: 6 ---------------------------------------- HEAD : 10100101 165 A5 AddH : 165 AddL : 165 Chan : 165 -> 575MHz SpeedParityBit : 10 -> 8E1 SpeedUARTDatte : 100 -> 19200bps SpeedAirDataRate : 101 -> 19.2kbps OptionTrans : 1 -> Fixed transmission (first three bytes can be used as high/low address and channel) OptionPullup : 0 -> TXD, RXD, AUX are open-collectors OptionWakeup : 100 -> 1250ms OptionFEC : 1 -> Turn on Forward Error Correction Switch (Default) OptionPower : 1 -> 17dBm ---------------------------------------- MODE NORMAL! AUX HIGH! Complete! MODE PROGRAM/SLEEP! AUX HIGH! Complete! AUX HIGH! Complete! Clear buffer...ok!When I attempted to send a message with the following code, the LoRa did not receive any message response.
SendFixedTransmission#include "Arduino.h" #include "LoRa_E32.h" LoRa_E32 e32ttl(&Serial2,15,21,19); // AUX M0 M1LoRa_E32 e32ttl(&Serial2,15,21,19); // AUX M0 M1 void printParameters(struct Configuration configuration); void printModuleInformation(struct ModuleInformation moduleInformation); //The setup function is called once at startup of the sketch void setup() { Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for native USB } delay(100); e32ttl.begin(); // After set configuration comment set M0 and M1 to low // and reboot if you directly set HIGH M0 and M1 to program ResponseStructContainer c; c = e32ttl.getConfiguration(); Configuration configuration = *(Configuration*) c.data; 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(); // --------------------------- } // The loop function is called in an endless loop void loop() { delay(2000); Serial.println("Send message to 00 03 04"); ResponseStatus rs = e32ttl.sendFixedMessage(0, 3, 0x04, "Hello"); Serial.println(rs.getResponseDescription()); } 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, BIN); Serial.print(F("AddL : ")); Serial.println(configuration.ADDL, BIN); Serial.print(F("Chan : ")); Serial.print(configuration.CHAN, DEC); 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 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("----------------------------------------"); }RecaiveFixedTransmission
#include "Arduino.h" #include "LoRa_E32.h" LoRa_E32 e32ttl(&Serial2,15,21,19); // AUX M0 M1 void printParameters(struct Configuration configuration); void printModuleInformation(struct ModuleInformation moduleInformation); //The setup function is called once at startup of the sketch void setup() { Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for native USB } delay(100); e32ttl.begin(); e32ttl.resetModule(); // After set configuration comment set M0 and M1 to low // and reboot if you directly set HIGH M0 and M1 to program ResponseStructContainer c; c = e32ttl.getConfiguration(); Configuration configuration = *(Configuration*) c.data; configuration.ADDL = 3; configuration.ADDH = 0; configuration.CHAN = 0x04; configuration.OPTION.fixedTransmission = FT_FIXED_TRANSMISSION; e32ttl.setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE); printParameters(configuration); c.close(); // --------------------------- Serial.println(); Serial.println("Start listening!"); } // The loop function is called in an endless loop void loop() { if (e32ttl.available() > 1){ ResponseContainer rs = e32ttl.receiveMessage(); // First of all get the data String message = rs.data; Serial.println(rs.status.getResponseDescription()); Serial.println(message); } } 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, DEC); Serial.print(F("AddL : ")); Serial.println(configuration.ADDL, DEC); Serial.print(F("Chan : ")); Serial.print(configuration.CHAN, DEC); 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 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("----------------------------------------"); } -
This is for the screenshotScreenshot
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Hi Srill,
Strangely, the library does not say again any response from the device. You get
Available buffer: 0 structure size: 6
and means that the device doesn’t give a response.There is a power supply problem or wiring problem.
Bye Renzo-
After I checked the wiring as you suggested, here were several jumper cables that broken, wkwkwkwk. Two of the LoRa modules can transmit and receive messages properly, but one module can only receive messages because previously I tried it on Arduino without looking at the schematic you provided, and I didn’t use a voltage divider like your scheme.
thanks renzo. Have a great day!
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Hi Renzo,
I would like to ask again. How do I define the hardware serial for the LoRa E32?
i want use UART1 for GPS and UART2 for LoRa, but when I define it as follows :#define RXD1 12 #define TXD1 13 HardwareSerial neogps(1); HardwareSerial Serial2(2); LoRa_E32 e32ttl(&Serial2, 15, 33, 32); [...] void setup(){ neogps.begin(9600, SERIAL_8N1, RXD1, TXD1); e32ttl.begin();the system encounters an error like this.
invalid conversion from 'HardwareSerial*' to 'byte' {aka 'unsigned char'} [-fpermissive]i use ESP32 DevkitC V4 board
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in the following line
LoRa_E32 e32ttl(&Serial2, 15, 33, 32);if i change Serial2 to:
HardwareSerial lora(2); LoRa_E32 e32ttl(&lora, 15, 33, 32);There are no errors, but when I upload it to the board, there is no data received or sent from LoRa or GPS, here an error screenshot
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hello Renzo,
I want to ask, why when I use Lora E220 (E220-400T30D) with an antenna (Tx433 JKD-20p) my ESP32 board always restarts when sending messages, but when I remove the antenna everything works fine receiving and sending messages. I use a supply from an 18660 4.2v battery and I have tried using 5v/3a, the results are still the same. -
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