Adafruit STEMMA Speaker - Plug and Play Audio Amplifier
by Adafruit
This Adafruit STEMMA Speaker - Plug and Play Audio Amplifier has a class D audio amplifier on board, and Adafruits favorite little 1 Watt 8 ohm speaker.
Connecting it up is easy - you only need ground, 3 to 5V power, and audio signal. The audio signal does not need to be AC coupled, we do that for you, and can range up to the power pin voltage (3 or 5V peak-to-peak). You can use either the 3-pin JST socket or the alligator/sew-pads for this slim and portable package. The sound quality is good enough for music, tones, speech, whatever you like and volume can be adjusted with a small screwdriver.
TECHNICAL DETAILS
- Assembled dimensions: 37mm x 30.5mm x 7.2mm
- Product Weight: 7.5g / 0.3oz
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8 customer reviews
2 years ago
Would have been nice if it had a polarity diode on board. Still, only £6 and a lot of smoke. My fault. Luckily I bought two.
by PAUL about Adafruit STEMMA Speaker - Plug and Play Audio Amplifier via REVIEWS.io
by PAUL about 2 years ago
I'm sure it's a neat bit of kit, but unfortunately, it was about 10mm too big to fit into the projects I was working on. So I can't anything as to its functionality. I totally own that this was my mistake, I misread the sizes. Thankfully pimoroni has this no-fuss return policy so I was able to send it back and get a refund with no bother, (and buy an amp and speaker separately that would fit.
by Simon about Adafruit STEMMA Speaker - Plug and Play Audio Amplifier via REVIEWS.io
by Simon about 3 years ago
Surprisingly good volume. Too cute not to have.
by Jonas about Adafruit STEMMA Speaker - Plug and Play Audio Amplifier via REVIEWS.io
by Jonas about 4 years ago
by Phillip about Adafruit STEMMA Speaker - Plug and Play Audio Amplifier via REVIEWS.io
by Phillip about 4 years ago
Not deafening but adequate for my purposes (amplifying the Pi headphone output).
One slight niggle is the volume control pot is very tricky to turn - not one of my hundreds of screwdrivers fitted it well, so perhaps either ship with an adjustment tool or use one that is easier to adjust?
by Jeremy about Adafruit STEMMA Speaker - Plug and Play Audio Amplifier via REVIEWS.io
by Jeremy about 5 years ago
Just the job for robot project development. Very compact and light. Sound output okay, but can be improved by adding (cardboard) baffle.
by Alan about Adafruit STEMMA Speaker - Plug and Play Audio Amplifier via REVIEWS.io
by Alan about 5 years ago
I'll be using these guys again.
by Paul about Adafruit STEMMA Speaker - Plug and Play Audio Amplifier via REVIEWS.io
by Paul about 5 years ago
Running this of a Pi Zero W; you can use a DTO to get the PWM audio signal to it from the rerouted GPIO 18 pin. Simple aplay commands will work - it's loud enough. If you hear a "hiss" then turn the PWM volume (alsamixer command) up to 100% and use the tiny volume screw on the adafruit to turn the volume on the STEMMA down. Don't be tempted to reduce the "volume" of PWM (unless you really know what you're doing!) it probably doesn't do what you expect.
by Rich about Adafruit STEMMA Speaker - Plug and Play Audio Amplifier via REVIEWS.io
by Rich about 1 user photo
Out of stock – hopefully back soon!
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Adafruit STEMMA Speaker - Plug and Play Audio Amplifier
ADA3885Out of stock£5.70
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“Just the job for robot project development. Very compact and light. Sound output okay, but can be improved by adding (cardboard) baffle.”
Alan