This website belongs to Roman Sowa, MSEE, an independednt designer of electronic circuits for music. MIDI controllers presented here are available commercially thanks to small business that has grown around those boards. Anyone anywhere in the world can buy them. Sales is based only on the web, without distributor chain, so every customer gets the boards directly "from the factory". This is the only way to get them.
Products described here are electronic submodules, and using them requires at least basic soldering skills needed to connect wires to your contacts, or potentiometers. You can find here several types of MIDI controllers, for small and big instuments, for keyboards and knobs.

My motto is: "quality first" - provide the highest quality boards, while keeping the price at competitive level.

All my MIDI boards (with small exceptions) have a few outstanding features that are obvious and absolute minimum requirements for any decent electronic equippment, but you can find them highlighted in some companies' products descriptions, usually on top of the first page, so I thought I could point them here too

• all designs presented here are original, not published anywhere else and all firmware is originally written by midi-hardware.com
• all boards are proudly manufactured in Poland, EU, using circuit boards produced locally, and components from trusted distributors, while most important components directly from IC manufacturers' warehouses.
• extremely small size that gives you freedom of putting them anywhere. If you find smaller board with same functionality, I might consider designing even smaller one just for you, for free.
• unbelievable small power consumption making possible to power all of them with small batteries
• some models have auto-power off feature, so you can use them with 1 set of batteries even for couple of years, without worrying about switching power off
• all settings are available onboard, no need to setup anything with computer
• all settings are stored in non volatile memory, meaning they remain unchanged after removing power
• in most cases the same pinout is used for keys, making it very easy to connect, as 1 wire per key is used.
• they are all made in most advanced SMT (Surface Mount) technology, and take advantage of recent developments in microcontrollers
• printed circuit boards are high quality glass epoxy FR4 type, double sided with platted holes and nice green soldermask
• MIDI cable to board is removable using very high quality, small connector, the same type in all my boards
• free MIDI DIN5 metal socket with 0.5m cable, terminated with high quality connector mating the boards. This way you can easily mount the DIN5 socket on the panel without need to solder any wires.
• most of the boards are capable of generating any kind of MIDI data possible, although there are few exceptions (RPN, NRPN), but if required, this can be implemented in custom build
• easy reconfiguration/growth by plugging expander modules for more switch inputs, or analog inputs for potentiometers. LED drivers are also available.
• every expander board comes with proper interconnect cables (expander board to main board). You provide only the ribbon cables that are soldered to your instrument contacts.
• transmission between the boards uses proprietary protocol, which is faster and more secure than MIDI, and it creates less interference due to controlled spectrum.
• all boards are assembled using world class PACE soldering equipment, by skilled operator with 20+ years soldering experience
• boards are shipped in ESD protection bags, with cables and printed manual, all in a nice cardboard box.
• apart from quality check during every production stage, every component of your order is carefully checked again, just before shipment
• free shipping to anywhere in the world with optional (additional charge) Express Mail.