[EdoJidai]

Missing the #define E32_TTL_1W declaration!

“E32_TTL_1W is not optional for 30 dBm E32 modules, missing it causes silent, hard-to-debug failures”

Apologies for the thread, probably not needed.

[EdoJidai]

That worked!

Added the following line to the setup() routine:
Serial2.begin(9600, SERIAL_8N1, 16, 17);

Progress!

Thanks Renzo

[EdoJidai]

Hi Renzo, first off thank you for the great resources on this site.

I’m trying to get an E32 900T30D module to TX from an ESP32 WROOM Dev Module. The power stays at a constant 52mA so no transmission is happening. Do you have any debugging tips?

Here’s the pinout:
ESP32 GND – E32 GND – 104 Capacitor – 100mF Negative – Bench Pwr Negative
ESP32 VIN – E32 VCC – 104 Capacitor – 100mF Positive – Bench Pwr 5V 1A
ESP32 15 – E32 AUX
ESP32 RX2 – E32 TXD
ESP32 TX2 – E32 RXD
ESP32 19 – E32 M1
ESP32 21 – E32 M0

And the sender code: (similar to above)
// Sender
#include “Arduino.h”
#define E32_TTL_1W
#include “LoRa_E32.h”
#define FREQUENCY_915

LoRa_E32 e32ttl1w(&Serial2, 15, 21, 19); // RX AUX M0 M1

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

unsigned long interval = 3000; // interval between sends
unsigned long lastSendTime = 0; // last send time
byte msgCount = 0; // count of outgoing messages
long randNumber;

void setup() {
Serial.begin(9600);
delay(3000);
Serial.println(“In setup”);
e32ttl1w.begin();
nodeConfig();
}

void loop() {
if (millis() – lastSendTime > interval) {
// print a random number from 10 to 19
randNumber = random(10, 20);
String trama = String(randNumber);
ResponseStatus rs = e32ttl1w.sendFixedMessage(0x0, 0x3, 0x4, trama);
Serial.println(“Sending ” + trama);
Serial.println(rs.getResponseDescription());
lastSendTime = millis(); // timestamp the message
msgCount++;
}
delay(100);
}

void nodeConfig() {
ResponseStructContainer c;
c = e32ttl1w.getConfiguration();
Configuration configuration = *(Configuration*)c.data;

configuration.ADDH = 0x0;
configuration.ADDL = 0x1;
configuration.CHAN = 0x4;

configuration.SPED.airDataRate = AIR_DATA_RATE_010_24;
configuration.SPED.uartBaudRate = UART_BPS_9600;
configuration.SPED.uartParity = MODE_00_8N1;
configuration.OPTION.fec = FEC_1_ON;
configuration.OPTION.fixedTransmission = FT_FIXED_TRANSMISSION;
configuration.OPTION.ioDriveMode = IO_D_MODE_PUSH_PULLS_PULL_UPS;
configuration.OPTION.transmissionPower = POWER_21;
configuration.OPTION.wirelessWakeupTime = WAKE_UP_1250;
// printParameters(configuration);
c.close();

// Set configuration changed and set to not hold the configuration
ResponseStatus rs = e32ttl1w.setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE);
Serial.print(“Config: “);
Serial.println(rs.getResponseDescription());
}

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