Availability: In stock
The Qwiic MP3 Trigger can be used both as a standalone board or with the Qwiic connect system. By default the firmware installed on the ATtiny84 of the MP3 Trigger allows you to play tracks using the triggers. When pin 3 is pulled low the T003.mp3 file will immediately be played. By pulling multiple pins down simultaneously the four triggers can play up to ten tracks.
Or your microcontrollerboard can send a simple I2C command to listen to whatever is on your micro SD card. Sparkfun has written an extensive Arduino library to make MP3 playing over I2C a breeze. Play tracks, change volume, play next/previous, check if track is playing, stop play, change EQ, and change I2C address are all supported.
When a USB-C cable is connected to the Qwiic MP3 Trigger the contents of the microSD card appears as a jump drive. Sound output is provided via a 3.5mm headphone jack or poke-home connector allowing an external speaker to be connected without soldering. The Class-D mono amplifier is capable of outputting up to 1.4W.
More information is available on the website of Sparkfun.