I think everyone here is nothing short of ECSTATIC that this is happening here. Keep up your heroic work 
4 Likes
NO SOLICITING! PEDDLE YOUR WARES ELSEWHERE GUY! Just kidding, Iām pretty sure weāre all friends here. Except maybe that one guy.
Well Sean, most people that come up with an idea like this donāt pull it off. I for one remember when Aisjam made his video on your keyboard thinking to myself āyeah thatās never going to be available to us peasantsā.
And then when the user alexandrosroussos made the wish for a metal tracker mini I actively said āthatās never going to happen.ā
And now here we are, we have flying cars, metal trackers, and magical little keyboards that snuggle up to them. Iāve never been happier to be proven wrong.
The last two years were probably the roughest of my life, which feels weird to type considering how screwed up covid was. So personally I totally forgot until I finally paid off my anniversary edition tracker last night and though to myself , well wait a minute, what about that amazing device that may or may not have happened. So Iād be curious of how many minis are out there and try to get some videos and pics out there because I imagine a good amount of owners either forgot, have no idea it actually happened, or it just wasnāt the right moment to buy something right then. I do know that if there arenāt any available they wonāt sell, and all lot of people have short attention spans and may not think of the cool thing that wasnāt available that one time. Iām probably going to forget again for a couple of months since it wasnāt available.
I donāt know if anyone is familiar with the MicroMonsta. I was on the wait-list for a year and a half for that thing and totally forgot until I got the email and almost couldnāt come up with the money in the allotted time to place my order.
I guess what Iām getting at is that you made a winning product for a niche item. Iām sure if you make them they will sell, it may just not happen overnight or even within a year or two. Sell them at a price that makes it worth having them around. Or just make me one for my birthday and Iāll shut up.
Just keep being awesome, thatās what matters.
Itās my birthday everyone!!! Someone send me a keyboard!
1 Like
ou, what are those headphones? been looking for some more portable headphones, been using my ol sony MDREX310LP in-ear headphones from like 2011.
agreed / added it to my keychain <3
born and raised, tho have since moved. miss the food and friends.
1 Like
retro style Koss porta pros with these ear pads - Amazon.com: Voarmaks Premium Foam Ear Pads Cushions Compatible with Koss Porta Pro PP KSC35 KSC75 KSC55 Headphone (All Black) : Electronics
and a little surgery to add MMCX connectors to be able to use one of these - Amazon.com: KBEAR ST12 MMCX IEM Cable, in Ear Monitor Replacement Earbuds Earphone Cable, 8 Core 4N OFC Silver-Plated HiFi Headphone Wire Extension Cord for TIN Audio T2 T3 Shure Earphones (Dark, MMCX 3.5MM) : Electronics
1 Like
Thanks so much for the encouragement! - and happy late birthday 
, mine was a couple weeks ago too 
Dude, youāre a rockstar, and everyone on here knows it. I think I speak for everyone when I say keep up the awesome work. Your time will definitely come. Happy late birthday too you as well good sir, I hope it was a great one! Please make more! Please make the aluminum too! Iāll buy both! At very least, please add an email list to the website for us who want to stay informed. Canāt wait to see whatās next!
1 Like
I am super exited to announce that the bluetooth Configurator web app is up and running - Now the KB1 can really shine! It is designed for mobile, but runs in any browser that supports bluetooth (Safari 
) I have had good luck with Bluefy V Browser https://vbrowser.co (a good ios browser that supports BLE) on iPhone, chrome on android, and chrome on desktop (other browsers up to yāall to try). To use this with your KB1, youāll need go to the GitHub repo and follow the instructions in the readme to update your firmware to v1.1.1(back up first of course ).
web app is here - KB1 config
get firmware here (in releases) - GitHub - PocketMidi/KB1: Open-source MIDI keyboard controller with built-in speakers that transforms the Polyend Tracker Mini into a complete portable music production setup. Includes hardware schematics and ESP32-based firmware.
software info guide here - GitHub - PocketMidi/KB1-config: KB1 Config lets you wirelessly configure KB1 over Bluetooth. Map MIDI CCs, manage device settings, and use live sliders directly from the browser.
There will most likely be bugs to kill, but itās working great for me so far; report any issues on GitHub.
5 Likes
Received mine this morning, spent all day jamming and having an absolute blast. Extremely happy with it, and I wanted to say thank you for the time and effort that was put into this project. Been a wild ride watching this thread. 
I poked around with ESPConnect for a few minutes after reading the instructions on github and watching the video tutorial, gonna find the courage to click the āflashā button tomorrow to update the firmware. Just to confirm: is there an offset needed for the flash? Does it need to be pointed at a certain partition? Is it smarter than me and knows where to flash? Thanks in advance.
2 Likes
In case anyone else has questions, I have updated the readme on the KB1 github page GitHub - PocketMidi/KB1: Open-source MIDI keyboard controller with built-in speakers that transforms the Polyend Tracker Mini into a complete portable music production setup. Includes hardware schematics and ESP32-based firmware. with a more detailed Quick start guide and instructions on using ESPConnect,
2 Likes
What is the intended functionality of the āflash offsetā? I am genuinely curious!
The KB1 uses an ESP32-S3 development board at its heart.
There are lots of other flavors of ESP32 out there.
The .bin file (firmware) is actually a merged file with 3 parts, and depending on the chip variant, the order in which they are mapped to the memory is different.
ESP32-S3
0x0000 ā Bootloader
0x8000 ā Partition Table
0x10000 ā Application Firmware
classic ESP32 chips
0x1000 ā Bootloader (different offset!)
0x8000 ā Partition Table
0x10000 ā Application Firmware
The brilliant new ESPConnect app gives options, but greatly simplifies the whole process.
Before that web app was created, the whole flashing operation was overly complicated and a real pain to set up, so this guy really deserves some coffees -
2 Likes
Flash went perfectly.
Thanks for the updated instructions and ESP32 rundown, this is my first exposure to the platform. Didnāt want to brick the thing on day one. 
1 Like
Well, now I know how to set alerts on here. Wish I knew that a month or two ago.
I hope some of you have had a chance to try the new Configurator web app. I believe it will open the door to many more hours of fun with the Polyend Tracker Mini.
I do want to let everyone know that since it is still a new system(KB1 + Config app) to please keep checking back in the GitHub repo every now and then, since Iāve been updating incremental firmware versions as I find issues or bugs. So if you have any weird glitches, look there first, and get the latest build.
2 Likes
And also, if anyone doesnāt want their KB1, I do. Itās still officially my birthday for the rest of the year, so donāt be shy
There have been a few requests as to when the next batch will be ready, and I keep saying Iām not sure if thereās enough demand.
SO if you want one, head on over to the website https://pocketmidi.com and let me know. Thereās an interest meter there now so we can all see the demand. The only requirement is that you must log in as a user to vote, so I can get a real email for everyone.
Also newly added up top is a version display, so you all know at a glance the current firmware/software versions.
1 Like
Do I need to start handing out flyers? Iād make videos if I had one. Did you send one to Benn Jordan?
1 Like