Special MIDI 2x5 merger / splitter thru box with optimized schematicsDesigned by Deftaudio in United States of America
This MIDI Merger / Splitter is the special 2 input 5 output thru box which I designed from scratch while not being happy with other options. It has two MIDI input ports which are merged together b...Read More…
This MIDI Merger / Splitter is the special 2 input 5 output thru box which I designed from scratch while not being happy with other options.
It has two MIDI input ports which are merged together by a microcontroller and then split to five MIDI outputs. Programmed microcontroller is included with a PCB or Kit purchase.
It has optimized schematics for 5V and 3.3V MIDI sender devices, optimized circuitry for optocoupler to minimize false triggering and improve sensitivity. Finally it uses hex inverter with a Schmitt trigger for driving a stronger output signal. This makes it very reliable device.
There are two options for external power:
To be used with a standard wall adapter 6-12V and 5.5mm*2.1mm connector. In this case a Kit comes with corresponding socket and 7805 power regulator
To be powered from USB port. In this case a Kit includes USB->5.5mm*2.5mm cable, corresponding power socket (so you wont plug wall adapter) and doesn't include 7805. Instead of that you'll solder a jumper Pin 1 and Pin 3. Leave Pin 2 not connected.
Board size and an enclosure choice: Size: 5x17cm
Some of you wondered ideas for enclosure selection. Well, some kits produced here can be installed into cast cases, such as MidiThru-4 or MidiMerge_2in->5out into 1032L enclosure. It requires drilling and some patience. Other boards are just too big to go into typical aluminum case. I found it much easier to put them in between two acrylic panels cut to the size and connect them with plastic standoffs. I typically use M3 standoff 20mm and 5mm. 20mm goes on top, and has enough room to cover DIN5 sockets, while 5mm goes on the bottom. There is CorelDraw file on Github with precise board dimension and holes location.
|Shipping Rate||Ships From||First item||Additional items|
United States Postal Service: Standard Ground Rate
We recognize our top users by making them a Tindarian. Tindarians have access to secret & unreleased features.
We look for the most active & best members of the Tindie community, and invite them to join. There isn't a selection process or form to fill out. The only way to become a Tindarian is by being a nice & active member of the Tindie community!