PR15

[pokcek]

can you tell me what type of gas that the sensor can detect and how to include a buzzer in the circuit... tq...

[ober]

Please refer to the data sheet of gas sensor....

Adding buzzer? You may refer to PR23's schematic where it has a buzzer on board. It is just a digital output.

[pokcek]

Please refer to the data sheet of gas sensor....

Adding buzzer? You may refer to PR23's schematic where it has a buzzer on board. It is just a digital output.

if i had succesfully installed the buzzer, how about the programme..? is it change..? and if it change, how can i get the sample programme....?

[hyng]

Many of Cytron DIY project has the buzzer installed. You can just refer to them including the sample program.

[ober]

if i had succesfully installed the buzzer, how about the programme..? is it change..? and if it change, how can i get the sample programme....?

Yes, buzzer is like a normal digital output similar to LED, Relay in software point of view. I would say most of the sample source code under DIY project at least uses the LED, so you can refer to any of it. In fact PR15 also uses LED.