Tried doing it earlier today.
Didn't use a breadboard because i was scared of the large amount of current that would go through it and that i would end up starting a fire again.
anyway this is the schematic i followed
And the code:
#define HEATER_PIN 25
void setup() {
pinMode(HEATER_PIN, OUTPUT);
digitalWrite(HEATER_PIN, LOW); // Heater off
}
void loop() {
digitalWrite(HEATER_PIN, HIGH); // Heater on
delay(5000);
digitalWrite(HEATER_PIN, LOW); // Heater off
delay(5000);
}
No changes. is there a way to confirm im actually doing the right thing or if there's something wrong