Category: Electronics
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MIDI experiments: A simple MIDI tester
While doing some research to build a simple MIDI tester, I started to study the “real world” MIDI electrical specifications out there. I also experimented with various MIDI equipment and measured some voltages. A simple MIDI tester MIDI specifications imply that a MIDI OUT circuit always provides +5 Volts, on pin 4, in reference to circuit ground,…
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About MIDI connections: Identifying the Midi pin numbers
A short article to help identify MIDI pin numbers in all those circuit drawings and photos on the internet.
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My ultimate versatile MIDI connection board: Versatility is the key
My Ultimate Versatile Midi Connection Board I work with Midi, a lot. I often have to plug equipment for testing instruments, circuits and interfaces. I often need to connect more than one device to a computer or micro-controller. So I decided to build the ultimate versatile MIDI connection board that I could modify, tweak, and install…
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MP-2 + MRe: Hacking the Alesis Vortex and using a Wireless Midi Transmitter
A two-project merge! The Alesis Vortex needed a bit more… controls! So I decided to add a few sensors that would give me greater flexibility when playing. The Vortex is already quite capable, but my left hand was not “used” enough. Sure, there is a touch strip and a pitch-bend wheel at my finger tips.…
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MRe-2: A demo
I have decided to try the MRe-2 in a real setting. So I hooked up my keyboard and recorded a demo. It was done using Ableton Live 9. The trick was to setup 2 midi loops (using clips). The first one is used to loop the riff that plays after the intro. I had to…
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Midi Wireless: The iRig Midi adapter and Audeonic’s MidiBridge
In a previous post, I explained how I successfully use a pair of XBee radios to exchange Midi information between a midi instrument and a computer. This post is about another wireless solutions for those who have an iPhone or iPad. The iRig Midi adapter The iRig Midi adapter fits the connector of any 30-pin…
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MRe-2: XBee Midi emitter
In the previous post, I explained that I temporarily abandoned trying to use the RFM12B radio transceiver to exchange Midi information between two devices. This post explains how I successfully used the XBee radio transceiver to achieve sending information between a Midi source and a computer. The XBee radio comes in many different versions. The…
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MRe-1: A special version of the MP-1: A Midi Transmitter
A special version of the MP-1 was built to get MIDI data from the Vortex and send it wirelessly to a computer for further processing. I have decided to name it the Midi Remote Emitter 1 (MRe-1). In fact, the electronics is the same as the MP-1, but the Midi-Out port was not put in,…
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Jeenode: Interference
Because of the previous post, I decided to test a bit more. To see if I could physically move the board to reduce interference. So I connected the Arduino with the attached RFM12B radio module. The one using the Sparkfun MIDI breakout board. As I was clearing the desk, I placed the Arduino on a…