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Hello.
I am working on a personal project using the LoRa module E32-TTL-100.
My setup is composed of two Arduinos and two E32 modules. I am basically connecting each Arduino to each E32 module, and my aim is to successfully set a communication between these two pairs using LoRa.
For the connection between Arduino and E32 I am using the following circuit.
For the code, I am using the one in Ebyte LoRa E32 device for Arduino, esp32 or esp8266: fixed transmission – 4.
/* * LoRa E32-TTL-100 * Write on serial to transfer a message to other device * http://mischianti.org * * E32-TTL-100----- Arduino UNO * M0 ----- GND * M1 ----- GND * TX ----- PIN 2 (PullUP) * RX ----- PIN 3 (PullUP & Voltage divider) * AUX ----- Not connected * VCC ----- 3.3v/5v * GND ----- GND * */ #include "Arduino.h" #include "LoRa_E32.h" LoRa_E32 e32ttl100(2, 3); // e32 TX e32 RX void setup() { Serial.begin(9600); delay(500); Serial.println("Hi, I'm going to send message!"); // Startup all pins and UART e32ttl100.begin(); // Send message ResponseStatus rs = e32ttl100.sendMessage("Hello, world?"); // Check If there is some problem of successfully send Serial.println(rs.getResponseDescription()); } void loop() { // If something available if (e32ttl100.available()>1) { // read the String message ResponseContainer rc = e32ttl100.receiveMessage(); // Is something goes wrong print error if (rc.status.code!=1){ rc.status.getResponseDescription(); }else{ // Print the data received Serial.println(rc.data); } } if (Serial.available()) { String input = Serial.readString(); e32ttl100.sendMessage(input); } }I have uploaded this same code to both Arduinos and then opened the Serial consoles to monitor if the communication was happening as expected. However, I only get the prints saying that the message was sent succesfully on the sender’s end, but never see the receiving end printing the received message.
Am I doing something wrong? I am totally new to LoRa, so I am also very lost in this and kinda burned out, since I’ve being trying to get it to work for days now.
I wonder if I am skipping some configuratin step I was supposed to be doing before this.
Thanks in advance for any help.
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I decided to try switching to Sleep Mode and check what the Get Configuration code would output for each of my circuits.
Output for Arduino 1:
No response from device! (Check wiring) 12 ---------------------------------------- HEAD BIN: 0 0 0 AddH BIN: 0 AddL BIN: 1100101 Chan BIN: 115 -> 525MHz SpeedParityBit BIN : 1 -> 8O1 SpeedUARTDataRate BIN : 110 -> 57600bps SpeedAirDataRate BIN : 11 -> 4.8kbps OptionTrans BIN : 0 -> Transparent transmission (default) OptionPullup BIN : 0 -> TXD, RXD, AUX are open-collectors OptionWakeup BIN : 0 -> 250ms (default) OptionFEC BIN : 0 -> Turn off Forward Error Correction Switch OptionPower BIN : 0 -> 20dBm (Default) ---------------------------------------- No response from device! (Check wiring) 12 ---------------------------------------- HEAD BIN: 0 0 0 Freq.: 0 Version : 64 Features : 42 ----------------------------------------Output for Arduino 2:
No response from device! (Check wiring) 12 ---------------------------------------- HEAD BIN: 0 0 0 AddH BIN: 0 AddL BIN: 11000011 Chan BIN: 115 -> 525MHz SpeedParityBit BIN : 1 -> 8O1 SpeedUARTDataRate BIN : 110 -> 57600bps SpeedAirDataRate BIN : 11 -> 4.8kbps OptionTrans BIN : 0 -> Transparent transmission (default) OptionPullup BIN : 0 -> TXD, RXD, AUX are open-collectors OptionWakeup BIN : 0 -> 250ms (default) OptionFEC BIN : 0 -> Turn off Forward Error Correction Switch OptionPower BIN : 0 -> 20dBm (Default) ---------------------------------------- Success 1 ---------------------------------------- HEAD BIN: 11000011 195 C3 Freq.: 32 Version : 53 Features : 14 ----------------------------------------Does this give us any information on where there might be a problem?
Thanks for the help.
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Hello. Thanks a lot for the tips.
I have enabled the debugging mode and now I’m getting the following message in the serial monitor.
Init AUX pin! Begin ex Begin Software Serial Begin The M0 and M1 pins is not set, this mean that you are connect directly the pins as you need! AUX HIGH! Complete! The M0 and M1 pins is not set, this mean that you are connect directly the pins as you need! AUX HIGH! Complete! 3 Available buffer: 0 structure size: 6 ---------------------------------------- HEAD : 0 0 0 AddH : 0 AddL : 207 Chan : 239 -> 649MHz SpeedParityBit : 10 -> 8E1 SpeedUARTDatte : 111 -> 115200bps SpeedAirDataRate : 110 -> 19.2kbps 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 : 111 -> 2000ms OptionFEC : 0 -> Turn off Forward Error Correction Switch OptionPower : 0 -> 20dBm (Default) ---------------------------------------- The M0 and M1 pins is not set, this mean that you are connect directly the pins as you need! AUX HIGH! Complete! No response from device! (Check wiring) 12 ---------------------------------------- HEAD BIN: 0 0 0 AddH BIN: 0 AddL BIN: 11001111 Chan BIN: 239 -> 649MHz SpeedParityBit BIN : 10 -> 8E1 SpeedUARTDataRate BIN : 111 -> 115200bps SpeedAirDataRate BIN : 110 -> 19.2kbps OptionTrans BIN : 1 -> Fixed transmission (first three bytes can be used as high/low address and channel) OptionPullup BIN : 1 -> TXD, RXD, AUX are push-pulls/pull-ups OptionWakeup BIN : 111 -> 2000ms OptionFEC BIN : 0 -> Turn off Forward Error Correction Switch OptionPower BIN : 0 -> 20dBm (Default) ---------------------------------------- The M0 and M1 pins is not set, this mean that you are connect directly the pins as you need! AUX HIGH! Complete! 3 Available buffer: 4 structure size: 4 AUX HIGH! Complete! The M0 and M1 pins is not set, this mean that you are connect directly the pins as you need! AUX HIGH! Complete! ---------------------------------------- HEAD BIN INSIDE: 11000011 195 C3 Freq.: 32 Version : 53 Features : 14 ---------------------------------------- Success 1 ---------------------------------------- HEAD BIN: 11000011 195 C3 Freq.: 32 Version : 53 Features : 14 ----------------------------------------I checked all wires multiples times with multimeter and have redone all wire connections. Do you have any insight on what may be going wrong?
Best,
Linx -
I have realized that it was not working because I was not using the complete circuit.
Now I have built with the complete circuit (below), and stopped getting the error in the getConfiguration routine.
Now I will try to make a simple communication using the Part 1 tutorial and will report back with the results.
Thank you!
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