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  • MIDI Synthesizer Unit (SAM2695)
  • MIDI Synthesizer Unit (SAM2695)
  • MIDI Synthesizer Unit (SAM2695)
  • MIDI Synthesizer Unit (SAM2695)
  • MIDI Synthesizer Unit (SAM2695)
  • MIDI Synthesizer Unit (SAM2695)
  • MIDI Synthesizer Unit (SAM2695)
  • MIDI Synthesizer Unit (SAM2695)
  • MIDI Synthesizer Unit (SAM2695)

MIDI Synthesizer Unit (SAM2695)

SKU:U178

$12.95

10+ In Stock

Shipping calculated at checkout.

Description

Unit Synth is a unit specially designed for MIDI sound systems, built with the SAM2695 audio synthesizer. It receives standard MIDI signals via serial communication, thereby enabling a variety of audio synthesis and processing functions, covering audio synthesis, mixing, sound effect processing, and more. The unit supports configuration of multi-channel instrument sound source output and allows adjustment of parameters such as 4-band EQ and reverb. In addition, it is equipped with an NS4150B class-D amplifier chip, providing clear audio output. This product is suitable for improvisational performance, music production studios, electronic music stages, as well as STEAM education.

Features

  • SAM2695 audio synthesizer chip
  • Serial communication
  • Class-D amplifier
  • MIDI standard protocol
  • Supports configuration of multi-channel instrument sound source output
  • Supports 4-band EQ, reverb, and other parameter adjustments
  • Development Environment: Arduino, UIFlow, etc.

Includes

  • 1 x Unit Synth
  • 1 x HY2.0-4P Grove Cable (20cm)

Applications

  • Improvisational performance
  • Music production studios
  • Electronic music stage
  • STEAM education

Specifications

Specification Parameter
Audio Synth Chip SAM2695
Amplifier Chip NS4150B
Audio Protocol MIDI
Speaker 8Ω@1W
Operating Temp. 0 ~ 40°C
Product Size 48.0 x 24.0 x 16.0mm
Product Weight 10.1g
Package Size 138.0 x 93.0 x 17.0mm
Gross Weight 15.4g

LEARN AND DOCUMENTS

Customer Reviews

Based on 5 reviews
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R
Ricardo Boza

MIDI Synthesizer Unit (SAM2695)

J
John Maloney
Amazing MIDI Synth for the price

It's hard to believe you can buy a General MIDI synthesizer for just $12.50. The MicroBlocks team plans to use these for a music coding class at FOSDEM in Feb 2025. The built in speaker is quite audible although, of course, you don't get much bass. I wish there there was an audio output jack but for the price, I'm not compaining!

a
aaron bussey
Excellent!

I bought three of these and have just ordered two more. Both the synth chip and the audio chip exceed my needs and expectations. The GM synth chip responds properly to all the sysex and MIDI messages I send it and the wave table voices are as good as any GM synth I have heard. The audio quality is excellent and more that sufficient for audiophile headsets and small practice speakers. The only limitation is the included piezo speaker which has extremely limited fidelity and volume. But it is connected with a 2mm pin header so it's easily eliminated and replaced with an audio jack for headphones, small speaker or connection to an external amp and speakers. The 4150B audio chip output is rated at 2 w @ 4 ohms, so is sufficient for any of these. I build and modify specialized MIDI controllers, particularly wind controllers and chromatic accordion button keyboards. These are useful for students learning and as practice instruments for musicians as well as useful for rehearsals. I was delighted to find these M5Stack available. Thanks, Aaron

Hi Aaron, thank you so much for your detailed feedback! It’s great to know that they’re fitting so well into your projects. We appreciate your insight about the piezo speaker—it's helpful for us and other customers. Thanks again for your support!

C
Craig A. Lindley
MIDI Synth Worked Great in my Laser Harp

I needed a module based on the SAM2695 so I decided to take a chance and buy the MIDI Synthesizer Unit from M5. It was the least expensive module I could find along with the most feature packed. I designed and built a Laser Harp which has the synth unit built in. You can check out the build at: http://craigandheather.net/celelaserharp.html
The module really works well and I would recommend it to everyone.

What I would like to see is a different version of this module without the amp and speaker with an 1/8" jax to route the output audio into an external amplifier.

Hi Craig, the piezo speaker is connected via a 2mm pin header and is easily replaced with an audio jack. And about the version with audio jack, you can have a check with our new product MIDI Unit (U187). Thanks!

S
Steve Johnson
Fantastic synthesizer unit

I was very surprised at the number of unique “instruments” and sounds that this unit provides. The documentation on M5Stack was somewhat lacking but the data sheet provided enough info to get this unit programmed. I found UIFlow wasn’t very helpful in programming this synthesizer and much more could be done by M5 to help basic “programmers” like myself, particularly as I am trying to introduce my grandson to graphical programming. All this said, this unit has a lot of potential.

Hi Steve, full MIDI implementation charts are included in the SAM2695 data sheet but unfortunately it is below many pages of physical and electrical data. And altho the SAM2695 implements the full range of GM MIDI messages and sysexes, the patches or voices are not editable. This is common in many GM synths. Thx!