raspberry pi 4

Arduino AppleMIDI and McLaren rtpmidi

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SparkFun ESP2866 “Thing Dev” board

One of our customers brought to our attention an implementation of RTP MIDI for Arduino. With this sketch, you can use an Arduino to send and receive MIDI over Ethernet and WiFi. It is compatible with McLaren Labs’ rtpmidi, so you can use it to send MIDI from an Arduino to your Raspberry Pi.

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Update: Korg Microkey Air 37 Bluetooth MIDI Keyboard with Raspberry Pi4 and Buster

Last year, in https://mclarenlabs.com/blog/2019/01/15/korg-microkey-air-37-bluetooth-midi-keyboard-with-raspberry-pi/, I described how to compile a Bluetooth update for your Pi and how to connect a Korg Bluetooth keyboard to your Pi wirelessly. Raspbian “Buster” includes bluez-5.50. The code for version 5.50 includes support for Bluetooth MIDI, but it is not enabled in the “Buster” distribution. This article describes what I discovered in compiling bluez-5.50 for “Buster” and how I installed it to get Bluetooth MIDI working on my Raspberry Pi4.

Read More »Update: Korg Microkey Air 37 Bluetooth MIDI Keyboard with Raspberry Pi4 and Buster

Run rtpmidi as a service on Raspberry Pi

A service is a program that the operating system automatically starts when it boots. On the Raspberry Pi “buster” operating system, the daemon that starts and stops services is called “systemd.” You can read about creating services here:

https://www.raspberrypi.org/documentation/linux/usage/systemd.md

McLaren Labs rtpmidi can be run as a service so that whenever you start your Raspberry Pi rtpmidi can be ready to go. This is especially useful in a headless system where you want rtpmidi to route incoming RTP MIDI sessions to a specific MIDI destination.

One of our customers wanted to know how to do this, so we wrote up this HOWTO guide. Here we will show how to create a service that

  • listens for incoming RTP-MIDI connections
  • connects to MIDI Alsa port 128
  • announces itslef on UDP Port 5006
  • logs its output to Syslog
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