OPL2 Audio Board

Name: OPL2 Audio Board
SKU: 9687
Price: 32.00 USD
Availability: InStock
Rating: 4.75 (54 reviews)

(54 Reviews)

YM3812 OPL2 FM-synthesizer board for Arduino and Raspberry Pi compatible dev boards

Designed by Cheerful Electronic in Netherlands

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YM3812 OPL2 FM-synthesizer board for Arduino and Raspberry Pi compatible dev boards

The OPL2 Audio Board This is a synthesizer board for your Arduino, Teensy, Raspberry Pi or basically any board with an SPI interface and a few extra IO pins! It uses the classic YM3812 OPL2 sound chi…

The OPL2 Audio Board

This is a synthesizer board for your Arduino, Teensy, Raspberry Pi or basically any board with an SPI interface and a few extra IO pins! It uses the classic YM3812 OPL2 sound chip. The same chip that was used on the Adlib and Sound Blaster sound cards. You can use it to play back music of your favorite classic games on a real chip, compose your own tunes and whacky sound effects, or play around with the YM3812's FM-synthesis.

December 2021 hardware update

The new updated OPL2 Audio Board hardware has better filtering for improved audio quality and better bass sounds. There is now also a line out to get clear audio directly from the OPL2 chip.

Here is some inspiration for your projects

Build your own retro synthesizer or MIDI keyboard. You can use the Piano Board to add a small piano keyboard.
Play simple tunes from a string that resembles the QBasic PLAY command
Play vintage video game music files (DRO, IMF)
Play Reality Adlib Tracker (RAD) files
Use it as a real OPL2 with DosBox
Use it as a MIDI device (requires Teensy 2.0++ or later)
Use it as a synthesizer together with the OPL3BankEditor by Wohlstand
Library includes instrument defintions from Adlib, The Fat Man (many DOS games), Windows 3.1 Sound Blaster drivers

What about the hardware and software?

You can choose to get a board fully assembled and tested or as a kit to assemble yourself. For kits I always test the ICs before sending! The kit is very easy to assemble and the software library comes with a bunch of examples to get you started within an hour.

The software is very easy to use and extend so you can incorporate it into your own projects without too much hassle. The OPL2 library allows you to:

Get easy access to all of the OPL2 registers
Every OPL2 setting is exposed as a separate function
Load predefined instruments or create your own
No need to do any bit twiddling, or calculate register offsets

Since I don't like to discriminate between development platforms the software is the same for Arduino and Raspberry Pi like boards. It is easy to switch between target platforms by changing a variable. By default platform is set for Arduino, Teensy, Node MCU, etc. For Raspberry Pi, Orange Pi and other Pi like boards an installation script is provided that will take care of all the hard work to compile and install the library.

Audio quality of the OPL2 Audio Board is great, although I recommend using it with active (amplified) speakers for the best results.

Before shipping the chips in each kit or assembled board are tested to confirm that they are 100% working. Please be aware that YM3812s are no longer in production and therefore you will receive chips that have been recycled, but tested to be fully functioning.

Enclosure

I now also offer a 3D printed enclosure for your OPL2 Audio Board. The enclosure comes as two parts printed in stylish Vertigo Grey PLA and 4 screws. Please note that if you order an assembled board with the enclosure that you will still have to put the board into the enclosure yourself.

If you want to print the enclosure yourself then you can download the STL files here: https://www.printables.com/model/263388-opl2-audio-board-enclosure/files.

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Review Breakdown

Average Ratings

Product: (4.93)

Documentation: (4.57)

Shipping: (4.70)

Communication: (4.78)

Morris | Nov. 22, 2021

OPL/2 is a fun toy.

I received the opl/2 as a kit. There was instructions on assembly and first use. BUT when it comes time to wire up to your controller, good luck. I first tried using wiring described by the assemble sheet, but no sound. I've spent a few hours trying to diagnosis a hardware problem. Finding the schematic didn't match the hardware. The clock was ok, serial to parallel was ok,
Hmmm not much remained. I was using a Raspberry Pi. I took a look at the source for the demo and saw different pin layout from the assembly sheet. Changed to demo pin connections but still no sound. Then I looked at the OPL lib source and found a third set of pin usage - and they worked. Maybe I should have ask when I found the first inconsistency?
Hardware to schematic or pin usage? It is a fun toy, now that it's producing sound.

Ross | Oct. 10, 2021

Fantastic little board

The board is easy to solder. It's well documented and designed. Lot's of potential uses, definitely recommended.

Ryan | Aug. 2, 2021

nice layout and sounds great!

I bought this board for my Opera Rotas drum machine kit, great clear instructions and well layed out board.
works great and sounds awesome!
Shipping was slow but there is a warning on the page due to covid restrictions.
Thank you!

Rachel | July 14, 2021

Love it!

This little board has been so much fun. Great library and sample code made it easy to get up and running.

Cyril | July 12, 2021

Perfect, thx.

Easy to assemble, well documented, this is a good product, good quality, it works very well, i recommend it

Robert | April 1, 2021

Super nice kit

OPL2 was the first computer generated music I made when I was younger. So nice to have this as a module now. Works perfect.

Jason | Feb. 27, 2021

Works Great!

I was a little disappointed the YM3812 was sanded and repainted; most are nowadays but I had hopes. The device and documentation are spot on. I have no complaints and it fits my needs perfectly! Didn't have a need to communicate with seller since documentation was well put together. I'm happy with the purchase!

Shipping was less than 3 weeks from order to arrival.

Merijntje | Feb. 12, 2021

The Way It Should Be™

First time purchase on Tindie; I'm very impressed. The board is good quality, using good quality components. It worked straight after soldering, no fussing around required. The examples in the documentation work very well, I had no issues. If I had to give one slightly negative remark it's that the hole spacing for the mounting holes isn't on a 2.54mm pitch, so it's a bit hard to mount it to a strip board.

I used the board to build a MIDI instrument for my modular synth. The library gives plenty of options to play with the instruments in the library or create your own. Audio quality is good. I haven't heard any appreciable noise (after giving the board proper ground).

The schematic that I found on Hackaday seems to be for an earlier version of the board. I needed some adjustments in the final amplifier to match my synths volume levels, so I had to do some reverse engineering there.

Tim | Jan. 22, 2021

impossibly delightful

This brought me right back to my sound blaster 2.0, precisely as i had hoped. instant nostalgia. very simple to get up and running on an arduino. shipping was unexpectedly fast, precisely 20 days from order to delivery in USA. can't truly rate communication because i've had none with the genius who creates these, but given the quality of everything else i can't imagine it'd be less than stellar, so i extrapolated based on the github repo readme and issue tracker.

Benjamin | Jan. 13, 2021

Clear sound, simple construction, max value!

Built it, jumpered it, uploaded the test program, and it just works!
If only the rest of life was this easy and fun.

Jacob | Sept. 23, 2020

Great board

Beautiful and easy to assemble all-through-hole PCB. Great example code available through the Arduino app and on GitHub. It’s especially nice that a second set of chips is optionally available.

Vaclav | Sept. 9, 2020

Easy to build, works perfectly!

Great little kit, comes with nicely done documentation. Easy to build, since all components are THT. The kit I built worked out of the box, the examples and library listed at GitHub page worked with my Arduino Nano Every without problems...
In less than two hours since opening the package with the parts I've been playing my favorite VGM tunes from SD card, that's a success I think! (Again, via an example provided by the library.) Thank you!

Erik | Aug. 31, 2020

This is a pretty cool project and was fun to build

It's a pretty straight forward layout and worked with my Arduino IDE with the Arduino UNO board. The only critique would be to add a second set of power (5V and ground) pins along with a second Data and Shift pins (MOSI and SCK respectively) for hooking up a microSD card breakout board for the UNO, but even without it, it was still easy to hook that up as well. Loving the old Ultima 6 tunes!

Romain | Aug. 17, 2020

Simply perfect !!!

Thanks for the fast shipping !! Perfect product for synth or drum machine... very efficient !! Easy built !

Philip | Aug. 13, 2020

Fantastic!

Shipped fast, extremely well-documented, easy to assemble, and worked immediately. Very cool gadget!

Greg | Aug. 12, 2020

Awesome board, easy to assemble. Great documentation.

Very well designed and easy to assemble board. Worked first go. Special thanks for using IC sockets, this made it less stressful for a kid to assemble.

Documentation, Libraries and examples are first rate and extremely helpful.

Many thanks for designing and making this kit available.

Considering the current shipping conditions, it arrived from NL -> AUS quite quickly.

Antonio | Aug. 8, 2020

Good product, very easy to build

It's really easy to build, the included instructions are useful to check where each compoent goes. Easy to follow.

Justin | Aug. 5, 2020

Exactly as advertised, and got here quicker than I expected!

Everything in the box that I ordered and a really nice PCB with great instructions. I am excited to mount this on another project I'm working on that will hopefully arrive soon. Also shipping was a bit quicker than I expected given everything going on.

Seyed Poorya | May 26, 2020

great product; extremely easy to build

There is a reason this board has became reference for enthusiasts. assembly guide; parts were perfect. the best part is software library and endless possibilities that come with it.

Marc | April 13, 2020

Amazing product!

It's quite amazing to hear some of that old game music playing with such clarity through modern speakers. Wish I had, had this setup back in the day. Great product and great communication from a seller that clearly cares about the product they have produced. Now to make a fun project with the board. Thanks

Boyko | April 3, 2020

Works perfectly!

Tested with Arduino Uno R3, works perfectly, drums and music.
The hardware works fine directly from the start.
The manual could be improved and we have discussed this.
We ordered immediately more of these boards for educational purpose.
I recommend this board to everyone who likes to add music to the embedded experiments or projects. And yes I am sure it works also on your Raspberry Pi.

Thomas | March 15, 2020

Very useful board

Board is easy to build. The example software is a good guide to devolopements of your own. Really nice!

Snorre | March 3, 2020

Great board!

This was a great evening project. Everything was included, the instructions were concise, the code samples readable and everything worked on the first try,

Anthony | Feb. 15, 2020

Love it

Arrived very fast, I'm very thankful for this fully assembled kit, saved me so much time. Assembled easy, but the pinout instructions on the printed info (included with the kit) for the Teensy++ 2.0 was A0-> C6 and I got no sound, whereas this page (https://github.com/DhrBaksteen/ArduinoOPL2/wiki/Connecting) has the A0 connecting to E1 and Voila I had Sound !!! I'm aware these settings can be changed in software but this is for people ( like me ) who aren't very familiar with Teensy programming. I had no luck with the OSX version of the Opl3 bank Editor program, but I tried it on a PC running XP. I needed to install the Teensy Usb driver found here: https://www.pjrc.com/teensy/serial_install.exe. got the OPl3 bank editor running, it recognizes my new Com port, I load Instruments.. and every instrument had a slight distortion ( a fizzy/hissing sound) most obvious with quieter instruments. I tried adjusting the volume pot on the board but it's present at any volume.

UPDATE:
Maarten contacted me with info on how to test the LM386 amplifier chip which appears to be damaged making that noise. Now I can hear a beautiful clean signal produced by that fantastic YM3812, I'm so happy now. Thank you Mr. Janssen you are a genius.

Response from Cheerful Electronic | Feb. 16, 2020

Hi, can you please contact me directly to see how we can troubleshoot the issue you're having with the hissing?

Slavi | Feb. 9, 2020

Cannot stop smiling

Kit worked on the first try. Instructions couldn't be more clear. There's a whole library to work with. What more can you want? I've been sitting here resetting the Arduino for the past half hour just to hear the same demo melody again. 100/10 project and that's not a typo.

Juan Carlos | Feb. 9, 2020

Super recomendable

The build is as easy as it can get.

It sounds 100% like the real thing, because it is the real thing, no emulators here.

And it comes with a lots of examples so you can use it with your arduino, teensy, rasperry and even with a OPL3 Bank Editor than runs in the computer. I had a little problem setting up this one ans Maarten has solved the doubth in no time.

Also, the packet arrived in less than a week and the packaging was delicious. So Im so happy with this board and I recommend it to anyone that is reading

Joonas | Jan. 8, 2020

Does what it promises!

Very good documentation, easy to use. Excellent work on soldering! I highly recommend this profuct and seller!

Georgi | Dec. 22, 2019

A valuable addition for my DIY synth!

Very easy to build, works like a charm! Recommended for starters and retro-sound enthusiasts! All the examples work without any issue! My intent is to build a simple FM synth with pre-defined banks and instruments. Unfortunately didn't manage to make OPL3 Bank editor to work with the board, I've tried the serial pass-trough example with no luck. More documentation on the matter will be appreciated!
Overall great kit at bargain price, I love it!

Joost | April 20, 2019

Good hardware, great software

Great Arduino and Raspberry pi libraries, examples and documentation.
(A basic explanation of the opl2 hardware and how the api manipulates it would be a great addition I think but it can be found elsewhere on the web and playing a bit with the functions makes it a bit more clear.)

Daniel | April 13, 2019

Excellent quality, great fun kit.

This was just what I was looking for - aside from being a great nostalgia trip to revisit the music from games I enjoyed years ago, this kit is great for understanding more about how the hardware works, and experimenting with its capabilities. Since the board is essentially a nice serial interface to the YM3812 (plus a DAC and amplifier), you have full control over the chip.

The kit is very easy to assemble, with concise but clear instructions. I was concerned I might have to source the YM3812 and Y3014B chips myself but all the parts, including all the ICs and sockets, are included and carefully packaged.

There's comprehensive software support too - I haven't used it with an Arduino yet, but for Raspberry Pi there's a library that takes care of communication with the board and some great example code, including a player program that can handle a few different file formats. There are even a few sample tunes included, so it takes very little time to get up and running.

Very happy with my purchase!

Kilian | March 26, 2019

Very nice board, easy to use

Ordered the board last year because of nostalgia (the Ad Lib card was my first music card), didn't actually came around to using it until recently. It's a very nice design, and very easy to connect to an Arduino with the given instructions. The API documentation could be a tad bit better, but with the examples and source code available, it's easy to program.

Nander | Feb. 12, 2019

Really cool board. Works as advertised.

I bought this board to try and make a strange self-made synthesizer, using a DIN5 midi connector, and, at some later stage, with an actual physical control interface (currently it listens to commands over the usb serial cable, so I can test it out).

I have a question though: it seems my midi code is much more silent than the dosbox example, and if I try to increase the volume, it seems to be distorting the sound. The dosbox example is a lot more loud, but doesn't seem to distort.

Response from Cheerful Electronic | Feb. 12, 2019

Hi, thanks for your review!

The DosBox example is using the OPL2 output from DosBox, so there you rely on the conversion from MIDI to OPL2 provided by DosBox. If you look at the TeensyMidi example then you see that I'm also jumping through some hoops to calculate good sounding values for the volume as I was having the same issue. I'm not sure if the MIDI volume scale is supposed to be logarithmic, but that could be the source of it. I hope this is helpful to you.

Richard | Dec. 11, 2018

Great little board

Board arrived well packaged and quickly. The PCB is high quality and great value for the price. Was easily able to follow the instructions and example code to get the board up and running with an Arduino and Raspberry Pi. Now ordered a Teensy to explore Midi.

Robbie | Dec. 7, 2018

Very fun board for AdLib music enthusiasts

This is a great little board which makes it easy to play around with a classic FM chip. The library also offers some useful functions I wasn't expecting (e.g. a single command to load an instrument from a byte array, configuring all aspects of a channel and its ops in one go). For me, though, the best part is that it's possible to directly write any value to any register on the board, meaning you can take full control of the OPL2, even allowing things for which there are no library functions, e.g. CSW mode for speech synthesis fun.

There is a lot of noise even with the volume pot at minimum (muted) when using headphones directly, so definitely use a separate amplifier (as others have recommended), which allows you to set the board's volume high enough for the signal-to-noise ratio to be much better.

The example programs themselves are good demonstrations and they all worked first time, although the ones which stream music as OPL commands from the computer to the Arduino suffer slowdown issues. The code implements a buffer to help avoid slowdowns with sudden bursts of data but the buffer refills slowly so it doesn't help with sustained high throughput, plus the timing is all relative rather than absolute (seconds of delay build up over a few minutes of playback). I made some simple modifications to fix this (Python sends chunked data, Arduino tracks absolute playback time), in case anyone is interested (to the seller: Please _don't_ include my real name if using this code):
- Python: http://puu.sh/CeeIq/f4d7ef78a7.py
- Arduino: http://puu.sh/CeeIE/e9b2f92bb1.ino

Also, there is a "DosBoxPassthrough" Arduino example included, but it would be nice to know how to use this with DOSBox (is a modified version required?).

In any case, if you are considering buying this board but are unsure, I highly recommend it. The example program issues I described are easy to fix, and besides, isn't it more fun to write your own code? :)
Just make sure you start with the volume pot fully anticlockwise, as the audio output can get extremely loud and distorted (I've never been able to take it above 50%).

I'm very happy with the board will probably buy a second one so that I can have a dual-OPL2 setup.

Response from Cheerful Electronic | Dec. 11, 2018

Thanks for your review!

The Python example was kindly contributed by another user. Since I'm not an expert Python coder I will try out your changes and see if I can add them in the next library update :). As you requested I will not mention your name.

For the DosBox passthrough there is a modified version of DosBox available on my Github page https://github.com/DhrBaksteen/ArduinoOPL2.DosBox. It includs a build for Windows and allows you to use your OPL2 board as a real sound card. You simply configure the COM port in the DosBox config (See the readme.md). I'd love to hear from people using this custom build to hear what they think and if they have any suggestions!

Gregory | Nov. 12, 2018

Really cool little board

Works great, super easy to assemble, and really cool to hear some real OPL2 tunes. I was pleasantly surprised to find a complete set of IC sockets supplied even though the assembly instructions mention them as optional. I look forward to getting it up and running as a MIDI controlled device. Remarkably, it runs fine on a 3.3V supply being controlled and powered by a Teensy 3.5.

Ian | Nov. 2, 2018

Lovingly made product

I had a huge smile on my face when I opened up this little box. I could tell that a lot of care and love went into this kit, and it's been a pleasure to tinker with. I'm very excited to play around with the libraries and make some weird sounds!

There's no tracking on the shipping, but I think that's a fair trade off for $5 transatlantic shipping. Mine arrived within two weeks to the US.

Timothy | Sept. 20, 2018

Great quality and fun to build

I put this together while on discord with my friend. It was really easy and then I got to listen to some nice chip tunes when I was finished. Connected it to the adafruit metro, same as the Uno. Worked great, wiring was easy enough too.

Chon Hou | Sept. 10, 2018

it just works

:) the second board had arrived, finally.
and today i tested it. just works, perfectly.
thx.
https://youtu.be/pfzQlnjHK5o

Patrick | Aug. 25, 2018

Awesome little board!

Received the product in a week or so- GREAT BOARD!
Only complaint I'd have is the board is a bit too noisy, but maybe it's me?
Otherwise, lots of fun!

Steven | Aug. 8, 2018

Awesome product!

My board arrived today (shipping 3 days to Belgium), just soldered it up and I'm over the moon !
I cannot give this product & merchant enough thumbs up. Open sourced design, nicely packaged & excellent documentation. It's a very easy soldering job, good clearance between components, while still keeping the board size small. Loaded up the demotune sketch on a teensy 3.2 and it works like a charm. If you are considering this, just go for it, you'll love it.

Manuel | July 5, 2018

Amazing - easy and genuine!

The kit arrived super fast - 4 days from Netherlands to Switzerland.

Kit was very easy to assemble and worked out of the box:

https://twitter.com/mazevedo77/status/1014914668538859525

Nice retro sound and good examples.
I'm very satisfied!

Claudio | June 24, 2018

I spend a lot of time and it still does not arrive

I am really very upset with the shipping service, I can not trace it, nor can I be offered help if I do not have the national tracking number, if it is supposedly already in the country. I still do not have the product or anyone can give me news of it. the problem is not solved by asking again for the money I want the product that I buy and I need more help from those responsible for sending it for this service

Response from Cheerful Electronic | June 24, 2018

In all fairness, I've been in contact with this buyer for a few weeks and offered a refund. The kits are sent untracked, which as the name implies, means that I don't have a tracking number. If someone thinks that's too big of a risk then you're always free to enquire about sending the kit as a tracked package. I simply do not offer this normally because that makes international shipping almost cost as much as the kit itself. This is the first time that a kit has not arrived and I am very sorry about that, but there is simply no more I can do than to offer a refund in this case, which I think is fair.

Carrie | June 20, 2018

This thing is great!

I spent part of a Saturday soldering it up and it worked like a charm. Tons of sound files available online to play through it. Sound quality is excellent.

Sky | April 28, 2018

Works a charm

Built the kit before breakfast, tested it after, easy build, good board layout and it works a charm. Thanks!

Mario | April 3, 2018

Great retro sound!

The kit arrived very fast and was easy to assemble, everything is clearly marked on the PCB and the guide explains things like polarity of elements where it might not be obvious. I accidentally swapped two LMxxx OpAmps so it didn't work on first try but thankfully nothing happened to them :) Library and other source codes look great too, clean and with enough comments. Thank you!

Claudio | March 6, 2018

really nice board!

OPL2Audio Board is a really interesting product: You get access to OPL2 features in a "easy way" ( via programming library ).
You get everything you need in the shipped package.
The library code is well written and at first look, seems to fit well with any "code customization".

I've tried the board with Arduino and it worked like a charm.

In the documentation it's clearly suggested to use *amplified* speakers.
First I used a couple of old-laptop-NOT-amplified-speakers ( extracted brutally from the case ) and the audio was good at low levels ( as soon as I raised it, it was noisy ).
Then I've tried with amplified speakers and the audio quality was absolutely good!!!

I've built the board in a couple of hours and It was the *first* soldering work I did in my entire life ( a part from some guitar cable fixing ).
If I should suggest something to get even more better, I would say that in "assembling the board" documentation, could be useful some explanatory picture.
Other than that, it's really good.

David | March 5, 2018

Good stuff

The board is amazing, I first ordered a construction kit, but I destoyed something and the board didn't work.
So I ordered a built one and it works just as expected.

You can mix this with other libraries and it will work perfect, I could use the 3 pin lcd library, and the IR remote to control a menu to read songs from SD.

The only bad thing about this, is the seial and the sd libraries can sometimes fill the ram and make the samples not to work, I'd recommend using another library to read from sd and for serial. I tried "Petit FAT File System Module" which uses far less ram than SD, and it worked, but I could not port all the code, and never got the correct playback speed.

Also the card produces a little noise, but it you set the volume a bit higher the sound is very very clear.

William | Feb. 21, 2018

Yamaha 3812 OPL2 Board

Very nicely built kit.

I was surprised how fast it was shipped, since it traveled half way around the world.

Took no time at all to solder up and worked the first time I powered up and loaded demo code to arduino.

Build instructions were easy to follow. The demo code and library files are easy to follow with comments to make it easy to custom write your own code.

The sound is rich and like I remember from my DOS days.

The maker of the kit answered my questions right away and makes a solid cool sounding product. I look forward buying more kits from him.

Donald | Jan. 17, 2018

Original sound from an original design

There was a time when the only way to get nice sound and music from a computer was with a dedicated sound card.
The OPL2 Audio Board is an nice design that produces those original sounds on original hardware.
Emulators and converters on big computers are great, but the OPL2 produces sound like an Arduino computes -- simply and inexpensively.
The board was easy to assemble -- the online instructions are clear and accurate. I also used sockets for the ICs.
The Arduino example programs worked out-of-the-box, except the PlayIMF (and PLayDRO) -- the SD card adapter must be buffered. I first tried an unbuffered SD card breakout board which uses only resistors to pull-up or pull-down the SPI pins, but the IMF playback stalled. Using a buffered (micro) SD card breakout board, the OPL2 played all the wonderful music from Commander Keen. :-D
I've seen other FM sound boards with a MIDI input -- perhaps the OPL2 board would make an interesting MIDI synth?

Andrea | Oct. 15, 2017

Works good!

The kit was delivered to Italy in a very reasonable time. A pin on the jack connector was bent on the way but it was easily fixed. The most important parts (the chips) were indeed well protected.

Assembling the kit was straightforward due to component values printed on silkscreen. I added IC sockets just in case something bad happens to the chips. Wired to an Arduino and uploaded example code it worked almost instantly, as it took me some time to realize that the working range of the trimpot is actually very narrow.

Sound on simple amplified speakers is great!

Example code is very useful, but I still have to test it thoroughly.

About price, either other kits on the market are way too overpriced or this one is a bit underpriced: that tells me it was surely created with passion!

I'd finally suggest Maarten to use his experience to design and sell similar boards for other famous Yamaha sound chips.

Christian | Aug. 20, 2017

Sehr gutes PCB-Design, klasse Sound!

Das OPL2-Audio Board ist jeden Cent wert. Er ließ sich problemlos sowohl an meinem Pi, als auch am Arduino Uno und am Teensy 2.0 ++ als Midi-Gerät anschließen. Hierfür ist allerdings zwingend Python 3 zu installieren, da es ansonsten zu Fehlermeldungen auf dem Pi kommt.
Der Sound klingt wie aus der guten alten Soundblaster-Zeit.
Ich will nicht sagen das es ein Manko ist, aber selbstaufgenommene (mit DOSBOX RAW-OPL gestreamte) aufnahmen brechen nach ein paar Sekunden ab (ca 60 - 120 Sekunden)
Ansonsten kann ich nichts negatives zu diesem Projektboard sagen.

Würde mich über Updates des Quellcodes freuen. (mehrere Datei-Typen)

Vielen Dank für dieses Stück Nostalgie!

_________________________________________________________

The OPL2 audio board is worth every penny. It could easily be connected both to my Pi, as well as to the Arduino Uno and the Teensy 2.0 ++ as a Midi device. For this, however, it is mandatory to install Python 3, since otherwise there will be error messages on the Pi.
The music sounds like from the good old Soundblaster.
I do not want to say that it is a shortcoming, but self-recorded (with DOSBOX RAW-OPL streamed) recordings break down after a few seconds (about 60 - 120 seconds)
Otherwise I can say nothing negative about this projectboard.

I would be happy about updates of the source code. (Multiple file types)

Thank you for this piece of nostalgia!

Juho | July 13, 2017

Very good kit.

I have been using this with an arduino to experiment with connecting an opl2 to my midi keyboard, and at least the opl2 part of it is working perfectly like I hoped for. With small tweaks to the arduino examples in the github I can easily change between the included midi instruments. I feel like the 20 usd price is almost too low for this kit and would recommend this for anyone wanting to play with an opl2. The only thing I would improve would be some of the markings on the pcb, mainly the electrolytic capacitors negative terminals could have been marked with a clearer black bar instead of the - sign but all of this is very well documented , this was just the only thing i had to look up from the build guide. Also I put an 24 pin socket under the YM3812 which was not included since it is not necessary.

Fernando | June 28, 2017

Little board with great oldschool sound!

Easy assembly and great sound. example code looks very good, hope it will help me to create my own sounds! i would totally recommend this board to anyone interested in digital music and electronics. Kit is easy to solder and suitable for beginners.

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Cheerful Electronic

Helmond, NB, Netherlands

Ships from Netherlands.

68 Reviews | 817 Orders

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OPL2 Audio Board

YM3812 OPL2 FM-synthesizer board for Arduino and Raspberry Pi compatible dev boards

The OPL2 Audio Board

December 2021 hardware update

Here is some inspiration for your projects

What about the hardware and software?

Enclosure

Rates to

Review Breakdown

Average Ratings

OPL/2 is a fun toy.

Fantastic little board

nice layout and sounds great!

Love it!

Perfect, thx.

Super nice kit

Works Great!

The Way It Should Be™

impossibly delightful

Clear sound, simple construction, max value!

Great board

Easy to build, works perfectly!

This is a pretty cool project and was fun to build

Simply perfect !!!

Fantastic!

Awesome board, easy to assemble. Great documentation.

Good product, very easy to build

Exactly as advertised, and got here quicker than I expected!

great product; extremely easy to build

Amazing product!

Recommended

Works perfectly!

Very useful board

Great board!

Love it

Response from Cheerful Electronic | Feb. 16, 2020

Cannot stop smiling

Super recomendable

Does what it promises!

A valuable addition for my DIY synth!

Good hardware, great software

Excellent quality, great fun kit.

Very nice board, easy to use

Really cool board. Works as advertised.

Response from Cheerful Electronic | Feb. 12, 2019

Great little board

Very fun board for AdLib music enthusiasts

Response from Cheerful Electronic | Dec. 11, 2018

Really cool little board

Lovingly made product

Great quality and fun to build

it just works

Awesome little board!

Awesome product!

Amazing - easy and genuine!

I spend a lot of time and it still does not arrive

Response from Cheerful Electronic | June 24, 2018

This thing is great!

Works a charm

Great retro sound!

really nice board!

Good stuff

Yamaha 3812 OPL2 Board

Original sound from an original design

Works good!

Sehr gutes PCB-Design, klasse Sound!

Very good kit.

Little board with great oldschool sound!

Cheerful Electronic

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