Hi,
I have started experimenting with LORA modules which I have purchased on
Aliexpress.
I'm using
FireBeetle 2 ESP32-E IoT as microcontroller and it is impossible to obtain configuration. from both purchased modules.
So far I have tried:
1) Different ESP32s
2) Powering module out of 5V (4.5V actually)
3) removed pull-up resistors
4) with/without AUX
Wiring (module - ESP)
M0 - Ground
M1 - Ground
RX - pin 17 TX + behind 4.7k ohm resistor connected to 3.3V
TX - pin 16 RX + behind 4.7k ohm resistor connected to 3.3V
AUX - pin 25 + behind 4.7k ohm resistor connected to 3.3V
VCC - 5V
Ground - Ground
On board pins I can measure specified voltages.
My code:
/*
* LoRa E220 LLCC68
* Get configuration.
* http://mischianti.org
*
* E220 ----- Arduino MKR
* M0 ----- 2 (or GND)
* M1 ----- 3 (or GND)
* RX ----- 14 (PullUP)
* TX ----- 13 (PullUP)
* AUX ----- 1 (PullUP)
* VCC ----- 3.3v/5v
* GND ----- GND
*
*/
#include "Arduino.h"
#include "EByte_LoRa_E220_library.h"
// ---------- esp32 pins --------------
LoRa_E220 e220ttl(&Serial2, 25, UART_BPS_RATE_9600); // RX AUX M0 M1
void printParameters(struct Configuration configuration);
void printModuleInformation(struct ModuleInformation moduleInformation);
void setup() {
Serial.begin(115200);
while(!Serial){};
delay(2500);
Serial.println();
// Startup all pins and UART
e220ttl.begin();
ResponseStructContainer c;
c = e220ttl.getConfiguration();
// It's important get configuration pointer before all other operation
Configuration configuration = *(Configuration*) c.data;
Serial.println(c.status.getResponseDescription());
Serial.println(c.status.code);
printParameters(configuration);
ResponseStructContainer cMi;
cMi = e220ttl.getModuleInformation();
// It's important get information pointer before all other operation
ModuleInformation mi = *(ModuleInformation*)cMi.data;
Serial.println(cMi.status.getResponseDescription());
Serial.println(cMi.status.code);
printModuleInformation(mi);
c.close();
}
void loop() {
}
void printParameters(struct Configuration configuration) {
Serial.println("----------------------------------------");
Serial.print(F("HEAD : ")); Serial.print(configuration.COMMAND, HEX);Serial.print(" ");Serial.print(configuration.STARTING_ADDRESS, HEX);Serial.print(" ");Serial.println(configuration.LENGHT, HEX);
Serial.println(F(" "));
Serial.print(F("AddH : ")); Serial.println(configuration.ADDH, HEX);
Serial.print(F("AddL : ")); Serial.println(configuration.ADDL, HEX);
Serial.println(F(" "));
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.getUARTBaudRateDescription());
Serial.print(F("SpeedAirDataRate : ")); Serial.print(configuration.SPED.airDataRate, BIN);Serial.print(" -> "); Serial.println(configuration.SPED.getAirDataRateDescription());
Serial.println(F(" "));
Serial.print(F("OptionSubPacketSett: ")); Serial.print(configuration.OPTION.subPacketSetting, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getSubPacketSetting());
Serial.print(F("OptionTranPower : ")); Serial.print(configuration.OPTION.transmissionPower, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getTransmissionPowerDescription());
Serial.print(F("OptionRSSIAmbientNo: ")); Serial.print(configuration.OPTION.RSSIAmbientNoise, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getRSSIAmbientNoiseEnable());
Serial.println(F(" "));
Serial.print(F("TransModeWORPeriod : ")); Serial.print(configuration.TRANSMISSION_MODE.WORPeriod, BIN);Serial.print(" -> "); Serial.println(configuration.TRANSMISSION_MODE.getWORPeriodByParamsDescription());
Serial.print(F("TransModeEnableLBT : ")); Serial.print(configuration.TRANSMISSION_MODE.enableLBT, BIN);Serial.print(" -> "); Serial.println(configuration.TRANSMISSION_MODE.getLBTEnableByteDescription());
Serial.print(F("TransModeEnableRSSI: ")); Serial.print(configuration.TRANSMISSION_MODE.enableRSSI, BIN);Serial.print(" -> "); Serial.println(configuration.TRANSMISSION_MODE.getRSSIEnableByteDescription());
Serial.print(F("TransModeFixedTrans: ")); Serial.print(configuration.TRANSMISSION_MODE.fixedTransmission, BIN);Serial.print(" -> "); Serial.println(configuration.TRANSMISSION_MODE.getFixedTransmissionDescription());
Serial.println("----------------------------------------");
}
void printModuleInformation(struct ModuleInformation moduleInformation) {
Serial.println("----------------------------------------");
Serial.print(F("HEAD: ")); Serial.print(moduleInformation.COMMAND, HEX);Serial.print(" ");Serial.print(moduleInformation.STARTING_ADDRESS, HEX);Serial.print(" ");Serial.println(moduleInformation.LENGHT, DEC);
Serial.print(F("Model no.: ")); Serial.println(moduleInformation.model, HEX);
Serial.print(F("Version : ")); Serial.println(moduleInformation.version, HEX);
Serial.print(F("Features : ")); Serial.println(moduleInformation.features, HEX);
Serial.println("----------------------------------------");
}
Output:
No response from device! (Check wiring)
12
----------------------------------------
HEAD : 12 D0 FC
AddH : 8D
AddL : EF
Chan : 219 -> 629MHz
SpeedParityBit : 10 -> 8E1
SpeedUARTDatte : 11 -> 9600bps (default)
SpeedAirDataRate : 1 -> 2.4kbps
OptionSubPacketSett: 0 -> 200bytes (default)
OptionTranPower : 10 -> 13dBm
OptionRSSIAmbientNo: 1 -> Enabled
TransModeWORPeriod : 111 -> 4000ms
TransModeEnableLBT : 0 -> Disabled (default)
TransModeEnableRSSI: 0 -> Disabled (default)
TransModeFixedTrans: 0 -> Transparent transmission (default)
----------------------------------------
No response from device! (Check wiring)
12
----------------------------------------
HEAD: 54 72 97
Model no.: 6E
Version : 73
Features : 70
----------------------------------------
