I have successfully run ESP8266 Feather Huzzah + HR SC04 by pining it in the loop functin. Getting correct vales for the ultra sonic distance
However when i move the code to blynk sketch. Occationaly the sketch will not even connect to Blynk or it connects and returns just zero. Am i missing something?
#define BLYNK_PRINT Serial // Comment this out to disable prints and save space
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <SimpleTimer.h>
#include <NewPing.h>
#define TRIGGER_PIN 2
#define ECHO_PIN 0
#define MAX_DISTANCE 200
NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE);
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "my authen code here";
WidgetLCD lcd(V0);
SimpleTimer timer;
void setup()
{
Serial.begin(9600);
Blynk.begin(auth, "my wifi name", "my wifi pass");
delay(100);
timer.setInterval(1000, ultra);
}
void ultra()
{
unsigned int uS = sonar.ping_cm();
Serial.println(uS);
lcd.clear(); //Use it to clear the LCD Widget
lcd.print(0,0,"Distance (cm):");
lcd.print(0,1,(uS));
}
void loop()
{
Blynk.run();
timer.run();
}
// ---------------------------------------------------------------------------
// Example NewPing library sketch that does a ping every second.
// ---------------------------------------------------------------------------
#include <NewPing.h>
#define TRIGGER_PIN 2 // Arduino pin tied to trigger pin on the ultrasonic sensor.
#define ECHO_PIN 0 // Arduino pin tied to echo pin on the ultrasonic sensor.
#define MAX_DISTANCE 200 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm.
NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance.
void setup() {
Serial.begin(115200); // Open serial monitor at 115200 baud to see ping results.
}
void loop() {
delay(1000); // pings every second
Serial.print("Ping: ");
Serial.print(sonar.ping_cm()); // Send ping, get distance in cm and print result (0 = outside set distance range)
Serial.println("cm");
}
I was able to fix the intermitten connection issue by always hard reseting the device by disconnecting the power and then connecting it.
But there is def some issue getting sonar.ping_cm() to work on any part of the sketch.
I was able to run a simple counter variable and get that to display on the lcd blynk module file.
