[SOLVED] Cant combine geophone project with LoRa project

Projects Programming
11

So I've doctored the program and removed the delay and replaced it with millis() to get the program to cycle without having to stop the program using delays. The serial monitor and serial plotter are working, but the program is crashing now. I cannot read the data inside the serial monitor in order to possibly debug with the ESP32 decoder. any tips? code posted below.

#include <Adafruit_ADS1X15.h>
#include <heltec.h>
#include "images.h"
#define BAND    915E6  //you can set band here directly,e.g. 868E6,915E6
// Adafruit_ADS1115 ads;  /* Use this for the 16-bit version */
Adafruit_ADS1115 ads;    


int16_t GPI36; // the ADS is connected to analog pin 36
int threshold = constrain(threshold, 0, -1);  // threshold value to decide when the detected noise triggers the LoRa to send a message
unsigned int sensorReading = 0;      // variable to store the value read from the sensor pin
unsigned int counter = 0;
String rssi = "RSSI --";
String packSize = "--";
String packet ;
unsigned long geoStartMillis;
unsigned long currentMillis;
const unsigned long geoPeriod = 100;  //sensor read period



void setup()
{
  Serial.begin(9600);       // use the serial port
  Serial.println("Hello!");
  Serial.println("Single-ended readings from AIN0 with >3.0V comparator");
  Serial.println("ADC Range: +/- 6.144V (1 bit = 3mV/ADS1015, 0.1875mV/ADS1115)");
  Serial.println("Comparator Threshold: 1000 (3.000V)");
  amplify();
  heltec_begin();
  geoStartMillis = millis();  //start time of geophone

}

void loop()
{
  currentMillis = millis();  //get the current time
  geo();


}

void geo()  //function to get updated geophone reading
{
  if (currentMillis - geoStartMillis >= geoPeriod)  //test whether the period has elapsed
  {
    getReading();
    geoStartMillis = currentMillis;  
  }
}


void amplify()
{
  if (!ads.begin()) {
    Serial.println("Failed to initialize ADS.");
    while (1);
  }
  // Setup 3V comparator on channel 0
  ads.startComparator_SingleEnded(0, 1000);
}

int getReading()
{
  // read the sensor and store it in the variable sensorReading:
  sensorReading = ads.getLastConversionResults();
  Serial.print("GEOPHONE: "); Serial.println(sensorReading);
  // if the sensor reading is greater than the threshold:
  if (sensorReading = !threshold) {
    heltec_send();
  }
}


void logo() //logo display
{
  Heltec.display->clear();
  Heltec.display->drawXbm(0, 5, logo_width, logo_height, logo_bits);
  Heltec.display->display();
}

void heltec_begin() //setup for heltec LoRa 32 
{
  //WIFI Kit series V1 not support Vext control
  Heltec.begin(true /*DisplayEnable Enable*/, true /*Heltec.Heltec.Heltec.LoRa Disable*/, true /*Serial Enable*/, true /*PABOOST Enable*/, BAND /*long BAND*/);

  Heltec.display->init();
  Heltec.display->flipScreenVertically();
  Heltec.display->setFont(ArialMT_Plain_10);
  logo();
  Heltec.display->clear();
  Heltec.display->drawString(0, 0, "Heltec.LoRa Initial success!");
  Heltec.display->display();
}


void heltec_send() //send LoRa message 
{
  Heltec.display->clear();
  Heltec.display->setTextAlignment(TEXT_ALIGN_LEFT);
  Heltec.display->setFont(ArialMT_Plain_10);

  Heltec.display->drawString(0, 0, "Sending packet: ");
  Heltec.display->drawString(90, 0, String(counter));
  Heltec.display->display();
  LoRa.beginPacket();

  /*
     LoRa.setTxPower(txPower,RFOUT_pin);
     txPower -- 0 ~ 20
     RFOUT_pin could be RF_PACONFIG_PASELECT_PABOOST or RF_PACONFIG_PASELECT_RFO
       - RF_PACONFIG_PASELECT_PABOOST -- LoRa single output via PABOOST, maximum output 20dBm
       - RF_PACONFIG_PASELECT_RFO     -- LoRa single output via RFO_HF / RFO_LF, maximum output 14dBm
  */
  LoRa.setTxPower(14, RF_PACONFIG_PASELECT_PABOOST);
  LoRa.print("Stimulant ");
  LoRa.print(counter);
  LoRa.endPacket();
  Serial.print("--Alert!"); Serial.println(sensorReading);
  counter++;


}