Hello everyone!
Can someone please help me figure out what i’m doing wrong? What i’m trying to do sounds extremely simple and i don’t understand why it’s not working!
All i want is to read an LDR sensor values and have them written on a virtual pin so that i can display them on a widget in blynk console. I’m using an ESP32 board which reads the values just fine (tested it), but when i try to port the code to read the values into the Blynk code all i get are zeroes!
Code follows:
void setup() {
pinMode(25,INPUT);
Serial.begin(115200);
}
void loop(){
Serial.println(analogRead(25));
delay(1000);
}
This is the very simple code i use to read the values and print them on the Serial Monitor. The output is as follows:
As you can see, it works just fine.
However, as soon as i try to use the same code in the Blynk enviroment with the following code
#define BLYNK_TEMPLATE_ID "REDACTED"
#define BLYNK_TEMPLATE_NAME "REDACTED"
#define BLYNK_AUTH_TOKEN "REDACTED"
#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32_SSL.h>
char ssid[] = "REDACTED";
char pass[] = "REDACTED";
BlynkTimer timer;
void gauge()
{
Serial.println(analogRead(25));
}
void setup()
{
Serial.begin(115200);
Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
timer.setInterval(1000L,gauge);
pinMode(25,INPUT);
}
void loop()
{
Blynk.run();
timer.run();
}
All i get are zeroes!
I’ve also tried a similar code that mirrors the one found in the Blynk documentation
#define BLYNK_TEMPLATE_ID "REDACTED"
#define BLYNK_TEMPLATE_NAME "REDACTED"
#define BLYNK_AUTH_TOKEN "REDACTED"
#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32_SSL.h>
char ssid[] = "REDACTED";
char pass[] = "REDACTED";
BlynkTimer timer;
int LDRVal;
void gauge()
{
Serial.println(LDRVal);
}
void setup()
{
Serial.begin(115200);
Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
timer.setInterval(1000L,gauge);
pinMode(25,INPUT);
}
void loop()
{
LDRVal=analogRead(25);
Blynk.run();
timer.run();
}
But got the same result. Does anyone see what i’m missing?
I know my blynk code has no function that writes the values to a Virtual Pin. Right now i’m trying to understand why my code isn’t working. Once i do, writing the values to a Virtual Pin should be pretty straightforward.
Thanks!