Sunday, 16 February 2020

Jasper Midi interface - build notes

JasperMIDI is a simple MIDI interface to allow you to connect Jasper or other EDP link enabled equipment like the vintage Wasp and Gnat Synths or Spider sequencer to modern control equipment

If you buy from the manufacturer, you will get a pre programmed ATMega328  microcontroller

"It provides a pretty robust translation from MIDI to Jasper’s Link port, and converts notes on the Link port to MIDI enabling Jasper’s touch keyboard to be a very limited 2 octave controller."


i'M building this for a friend and he hasn't chosen the type of case the Jasper will be housed in.
This choice is impt as it will dictate how we power it, what voltage regulators are needed , and what connections to use.

"JasperMIDI has an optional 5V regulator allowing it to be powered with a 6V - 12V supply, or this can be left out and it can be powered using an existing regulated 5V. It can also take power over the Jasper mini DIN connector."

The PCB uses a MCP1702-5002 5V voltage regulator TO-92.
So this can be left out if powering from the Jasper main board.


I think the last and first options are out if it is to be installed in the case.

"If you built Jasper with a case including a speaker, then there will be enough room to install JasperMIDI. You can omit soldering the mini-din socket, and the power regulator components. Use hookup wire or ribbon cable to connect JasperMIDI to the Jasper main board. Use the 5V header
on the JasperMIDI PCB to the 5V pads (or connector) on the Link2 header."


Links:
+ Jaspersynth
+ Jasper Midi

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