Smoke sensor with esp32

Projects General Guidance
1

Hello
this is a smoke sensor forum with esp32
i need help of what should i link
and what code

2

I have moved your topic to Project Guidance, It wasn't really related to IDE 1.x.

What smoke sensors are you looking at?

3

mine is "flying fish" wroom32 smoke-sensor, could you find a linkage with an esp32?

4

accualy i found it, so uhm here it is

#include <Arduino.h>
#include <driver/adc.h>

const int GPIO32 = 32; // Define GPIO32 constant
const int BUZZER_PIN = 13; // Define buzzer pin as GPIO13

void setup() {
  Serial.begin(115200);
  pinMode(GPIO32, INPUT);
  pinMode(BUZZER_PIN, OUTPUT); // Set buzzer pin as output
  adc1_config_width(ADC_WIDTH_12BIT); // Configure ADC1 to use 12-bit resolution
  adc1_config_channel_atten(ADC1_CHANNEL_0, ADC_ATTEN_11DB); // Set attenuation for ADC1 channel 0 (GPIO32) to 11dB
}

void loop() {
  int sensorValue = analogRead((uint8_t)GPIO32); // Convert pin number to uint8_t before calling analogRead()

  // Check if sensor value exceeds a threshold (e.g., 1000)
  if (sensorValue > 1000) {
    tone(BUZZER_PIN, 440); // Play a 440Hz tone if smoke detected
  } else {
    noTone(BUZZER_PIN); // Stop the tone otherwise
  }

  Serial.println(sensorValue);
  delay(100);
}

thanks

5

It all works properly for you?

1 Like
6

Yes it does

7

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