Multiple MP3 Trigger V2 on same serial line?

Multiple MP3 Trigger V2 on same serial line?#107171

By smitty505000 - Wed Aug 11, 2010 5:06 am

- Wed Aug 11, 2010 5:06 am #107171

Hi all,
Is it possible to opperate multiple MP3 Triggers on the same serial line? Maybe by giving them individual addresses?

Smitty

Re: Multiple MP3 Trigger V2 on same serial line?#107229

By robertsonics - Thu Aug 12, 2010 5:38 am

- Thu Aug 12, 2010 5:38 am #107229

Kinda sorta... You could connect a transmit line and ground from your sending microcontroller to multiple MP3 Triggers (RX and GND), but you could not connect multiple MP3 Trigger TX lines to the receive input of your micro. So it would be communication in one direction only: from your micro to all the MP3 Triggers.

There's no way to address them individually, so they'd all get the same command. If you had different track numbers in each MP3 Trigger however, then when you send a command to start a track, the ones that have that track number will play, while the ones that don't won't, and will stop if they are already playing something else.

Re: Multiple MP3 Trigger V2 on same serial line?#107246

By smitty505000 - Thu Aug 12, 2010 12:04 pm

- Thu Aug 12, 2010 12:04 pm #107246

Thanks for the reply. I didnt think you could give them an address, but it would have been nice.

Its already a fantastic product! I am using 4 of them in my.....um lets see, Animatronic Interactive Machanical Puzzle diorama?

Smitty

SparkFun Forums