Update: Both devices magically came back online with sample code below. I have no idea why or how. What gives? With that said I still have a question: how's my wiring look?
Question: Are these devices wired correctly in your opinion/estimation? TIA
Greetings from Canada. I have two esp32c3 mini’s that were working happily and continuously for several hours up until 2am-ish last night. A simple reboot did nothing, amongst many other attempts to resolve this - leading me down the rabbit hole that brings me to this post. I’ve reduced everything to the basics and can’t even get serial output for either device at this point.
Product Link ESP32C3 Mini: https://www.aliexpress.com/item/1005007446721319.html
Product Link Lora: https://www.aliexpress.com/item/1005006176213952.html
My Wiring:
My Device:
My Code:
#include <SPI.h>
#include <LoRa.h>
// Define the pins used by the LoRa module
const int csPin = 7; // LoRa radio chip select
const int resetPin = 1; // LoRa radio reset
const int irqPin = 0; // Must be a hardware interrupt pin
int counter = 0;
// Configuração da inicialização da comunicação LoRa Transmissora
void setup()
{
Serial.begin(115200);
while (!Serial);
Serial.println("LoRa Receiver");
//Custom LORA settings - SCK, MISO, MOSI, SS
SPI.begin(4, 5, 6, 7);
// Setup LoRa module
LoRa.setPins(csPin, resetPin, irqPin);
if (!LoRa.begin(915E6)) {
Serial.println("Starting LoRa failed!");
while (1);
}
}
void loop()
{
Serial.print("Sending packet: ");
Serial.println(counter);
// send packet
LoRa.beginPacket();
LoRa.print("hello ");
LoRa.print(counter);
LoRa.endPacket();
counter++;
delay(1000);
}
The Problem - No serial output. No LoRa communication. No nothing.
The above code results in no serial output for either device although the power light comes on.
- Checked all connections/continuity between each board - (seemingly) all good.
- Uploaded other simple scripts (I.E. blink leds) without LoRa - works on each device without issue.
- Changed various settings such as the baud rate, different ports on my computer, etc.
- USB CDC on Boot is enabled
Everything was working fine until my computer to which one of the devices was connected went into hibernation mode. When I rebooted each device this morning that's when everything seemed to brick or stall out (no serial output and no confirmation packet sent blinking). At this point the only common denominator is my usb cable although things seem to be uploading without errors/issue and other scripts upload/work fine when LoRa is not incorporated/used. I’m at a loss for what to try or do next and any advice or direction would be appreciated.