Arducam ESP32-S Uno Pinout

Using Arduino General Electronics
1

I am trying to hook up an Adafruit Lora RFM9X to an Arducam ESP32-S Uno board. However, I am receiving the following error:

Failed to put device in Lora Mode
RH_RF95_REG_01_OP_MODE: 0

I believe this error is coming from a pin layout error when hooking up the wiring between the ESP and the Lora. More specifically, I believe the error is coming from the placement of hardware interrupt pin. Does anyone have any familiarity with the Arducam board and could offer some assistance?

2

Please post your code, the full error message and the schematic of your project

3

/ LoRa 9x_TX
// -- mode: C++ --
// Example sketch showing how to create a simple messaging client (transmitter)
// with the RH_RF95 class. RH_RF95 class does not provide for addressing or
// reliability, so you should only use RH_RF95 if you do not need the higher
// level messaging abilities.
// It is designed to work with the other example LoRa9x_RX

#include <SPI.h>
#include <RH_RF95.h>

#define RFM95_CS 4
#define RFM95_RST 2
#define RFM95_INT 3

// Change to 434.0 or other frequency, must match RX's freq!
#define RF95_FREQ 915.0

// Singleton instance of the radio driver
RH_RF95 rf95(RFM95_CS, RFM95_INT);

void setup()
{
pinMode(RFM95_RST, OUTPUT);
digitalWrite(RFM95_RST, HIGH);

while (!Serial);
Serial.begin(9600);
delay(100);

Serial.println("Arduino LoRa TX Test!");

// manual reset
digitalWrite(RFM95_RST, LOW);
delay(10);
digitalWrite(RFM95_RST, HIGH);
delay(10);

while (!rf95.init()) {
Serial.println("LoRa radio init failed");
while (1);
}
Serial.println("LoRa radio init OK!");

// Defaults after init are 434.0MHz, modulation GFSK_Rb250Fd250, +13dbM
if (!rf95.setFrequency(RF95_FREQ)) {
Serial.println("setFrequency failed");
while (1);
}
Serial.print("Set Freq to: "); Serial.println(RF95_FREQ);

// Defaults after init are 434.0MHz, 13dBm, Bw = 125 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on

// The default transmitter power is 13dBm, using PA_BOOST.
// If you are using RFM95/96/97/98 modules which uses the PA_BOOST transmitter pin, then
// you can set transmitter powers from 5 to 23 dBm:
rf95.setTxPower(23, false);
}

int16_t packetnum = 0; // packet counter, we increment per xmission

void loop()
{
Serial.println("Sending to rf95_server");
// Send a message to rf95_server

char radiopacket[20] = "Hello World # ";
itoa(packetnum++, radiopacket+13, 10);
Serial.print("Sending "); Serial.println(radiopacket);
radiopacket[19] = 0;

Serial.println("Sending..."); delay(10);
rf95.send((uint8_t *)radiopacket, 20);

Serial.println("Waiting for packet to complete..."); delay(10);
rf95.waitPacketSent();
// Now wait for a reply
uint8_t buf[RH_RF95_MAX_MESSAGE_LEN];
uint8_t len = sizeof(buf);

Serial.println("Waiting for reply..."); delay(10);
if (rf95.waitAvailableTimeout(1000))
{
// Should be a reply message for us now
if (rf95.recv(buf, &len))
{
Serial.print("Got reply: ");
Serial.println((char*)buf);
Serial.print("RSSI: ");
Serial.println(rf95.lastRssi(), DEC);
}
else
{
Serial.println("Receive failed");
}
}
else
{
Serial.println("No reply, is there a listener around?");
}
delay(1000);
}

4

The full error message is the one given

5

I've tried a few different wiring configurations but none of them work.
These are the components used:

6

This code was not written for a ESP32. You'll need a pin out diagram for your make model of the ESP32 and then change and adapt this code to run on an ESP32.

Edit your post and add code tags.

8

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