Tsunami Super WAV Trigger

Development Boards Other Microcontrollers
1

Hello, I am currently working on a technical project involving the implementation of a Tsunami Super WAV Trigger in combination with 12 solid state relays. I am reaching out to you with several questions regarding the feasibility of this setup and the components required. Project description:
The goal is to create a system in which 12 specific audio files are played back using the Tsunami WAV Trigger.

Although the Tsunami is capable of playing multiple sounds simultaneously, this project uses 12 individual audio channels. Each channel is linked to a relay that must be activated (energized) while the corresponding sound is playing. As soon as the playback stops, the relay should automatically deactivate.

This setup is intended to simulate an electronic piano, where each tone also triggers a physical or visual action via the relay.

The audio playback is triggered by external input signals to the Tsunami, which activate the individual tones. Technical specification:
I understand that the Tsunami Super WAV Trigger outputs 3.3V on its GPIO pins.

According to the documentation, this is sufficient to directly drive an appropriate solid state relay. The relay itself needs to be capable of switching an external 24V load.

I am therefore looking for a type of relay that can reliably be triggered by a 3.3V signal and is suitable for switching 24V. My questions are as follows:

Which solid state relays and cabling are suitable for this application (3.3V control, 24V switching)?

Are there any relay modules available with multiple channels that can be controlled via a Qwiic connection ?

Is this setup technically feasible with the Tsunami WAV Trigger, ensuring that sound playback and the activation of the corresponding relay occur synchronously? For example, by using the GPIO outputs assigned to each audio track.
2

Couple of points that could be a problem:

1 - The Super WAV trigger only has 8 audio outputs.
2 - The 16 GPIO pins are all inputs.

You would need external hardware to drive the relays and monitor the WAV trigger over serial / I2C for track playing status.

3

According to this website (https://www.sparkfun.com/tsunami-super-wav-trigger-25-voice-qwiic.html), I have more than 8 audio outputs.
And I’m also aware that the 16 GPIO pins are all inputs — I probably described that incorrectly.

What I’m looking for is a way to activate a specific relay for each melody at the exact moment it starts playing.
So when one of the 12 melodies is playing, only the corresponding relay should be switched on during playback.

However, I haven’t been able to figure out how to do this.
I hope I can find the help here to make this project a success.

4

…where are you reading that there are more than 8? From the page you linked, specs:

  • Eight audio output channels can be arranged as 4 stereo outputs. Route any track to any output

You could just use 2 of them to cover the needed 12