Create bbn_m5atomS3_lite_AS3935_lightning.ino

bbn_m5atomS3_lite_AS3935_lightning/bbn_m5atomS3_lite_AS3935_lightning.ino

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+#include <M5AtomS3.h>
+#include <SparkFun_AS3935.h>
+#include "NmeaXDR.h"
+
+// 0x03 is default i2c address, but the address can also be 0x02, 0x01.
+// Adjust the address jumpers on the underside of the product.
+#define AS3935_ADDR 0x03
+#define INDOOR 0x12
+#define OUTDOOR 0xE
+#define LIGHTNING_INT 0x08
+#define DISTURBER_INT 0x04
+#define NOISE_INT 0x01
+
+SparkFun_AS3935 lightning(AS3935_ADDR);
+
+// Interrupt pin for lightning detection
+const int lightningInt = G7;
+
+// This variable holds the number representing the lightning or non-lightning
+// event issued by the lightning detector.
+int intVal = 0;
+int noise = 2; // Value between 1-7
+int disturber = 2; // Value between 1-10
+
+void setup() {
+  auto cfg = M5.config();
+  AtomS3.begin(cfg);
+  Serial.begin(4800);
+
+  // When lightning is detected the interrupt pin goes HIGH.
+  pinMode(lightningInt, INPUT);
+
+  Serial.println("AS3935 Franklin Lightning Detector");
+
+  Wire.begin(); // Begin Wire before lightning sensor.
+
+  if ( !lightning.begin() ) { // Initialize the sensor.
+    Serial.println ("Lightning Detector did not start up, freezing!");
+    while (1);
+  }
+  else {
+    Serial.println("Schmow-ZoW, Lightning Detector Ready!");
+  }
+
+  // The lightning detector defaults to an indoor setting at
+  // the cost of less sensitivity
+  lightning.setIndoorOutdoor(INDOOR);
+  //lightning.setIndoorOutdoor(OUTDOOR);
+}
+
+void loop() {
+  if (digitalRead(lightningInt) == HIGH) {
+    // Hardware has alerted us to an event, now we read the interrupt register
+    // to see exactly what it is.
+    intVal = lightning.readInterruptReg();
+    if (intVal == NOISE_INT) {
+      Serial.println("Noise.");
+      // Too much noise? Uncomment the code below, a higher number means better noise rejection.
+      //lightning.setNoiseLevel(setNoiseLevel);
+    }
+    else if (intVal == DISTURBER_INT) {
+      Serial.println("Disturber.");
+      // Too many disturbers? Uncomment the code below, a higher number means better disturber rejection.
+      //lightning.watchdogThreshold(threshVal);
+    }
+    else if (intVal == LIGHTNING_INT) {
+      Serial.println("Lightning Strike Detected!");
+      // Lightning! Now how far away is it? Distance estimation takes into
+      // account any previously seen events in the last 15 seconds.
+      byte distance = lightning.distanceToStorm();
+      Serial.print("Approximately: ");
+      Serial.print(distance);
+      Serial.println("km away!");
+    }
+  }
+  delay(100); 
+}