Author Archives: rt

IoT REBOOT – Apple HomeKit (Siri), Raspberry Pi, node-red, Homebridge

Posted on 2018/03/25 by rt

Simplifying the IoT setup The goal of this project is to install a Internet of Things (IoT) server that can control “things” AND, more importantly, communicate with Apple’s Siri and HomeKit. Initially, we will install a server on a Raspberry … Continue reading →

Posted in Electronics, IoT | 3 Comments

Apple HomeKit on iOS with Arduino (ESP8266) through Raspberry Pi – Part 2

Posted on 2017/03/16 by rt

Apple HomeKit on iOS with Arduino (ESP8266) through Raspberry Pi Note: This post, and the previous one (part 1), are obsolete. They have been replaced by this one, offering a simpler method to get started. They are left here for … Continue reading →

Posted in Arduino, Electronics | 7 Comments

Apple HomeKit on iOS with Arduino (ESP8266) through Raspberry Pi – Part 1

Posted on 2016/12/03 by rt

The Internet of Thinks (IoT), using and iPhone, Siri, HomeBridge, MQTT and an Arduino – Part 1 Note: This post, and the next one (part 2), are obsolete. They have been replaced by this one, offering a simpler method to … Continue reading →

Posted in Uncategorized | 2 Comments

Review: Zivix PUC+ for Bluetooth Midi Wireless

Posted on 2015/11/13 by rt

I’ve been a fan off wireless MIDI for a while. I built a few prototypes and I still use some of the devices I made. I might have found a replacement: Zivix just came out (fall 2015) with a wireless Midi transmitter, … Continue reading →

Posted in Electronics, Music equipment, Uncategorized | Tagged , , | 4 Comments

M4L: Max for live patch for better guitar solo

Posted on 2015/07/08 by rt

Max for Live using Pitch Bend When using a keyboard to play guitar, you have to use Midi Pitch Bend (Pitchbend or PB) quite often to emulate the effect of bending a string on a real guitar. The problem is … Continue reading →

Posted in Ableton, M4L, Max for Live | Tagged , | Leave a comment

VC-1: Volume control for guitar using Arduino

Posted on 2015/04/26 by rt

As explained here, here and here, the VC-1 is a volume control for guitar (or bass) that can use a potentiometer, a variable analog signal or a Midi command to change the output volume.

Posted in Arduino, Electronics, Music equipment, VC-1 | 3 Comments

Akai MPK261: One more thing using Sysex…

Posted on 2015/04/06 by rt

In a previous post, I explained how to control preset changes on the mPK261 using SysEx commands. In this post, I explain how to get the MPK2 series to show some tricked pad colors.

Posted in MPK261, Music equipment | 11 Comments

MIDI Experiments: Arduino as master

Posted on 2015/04/05 by rt

Arduino as a Midi master The previous two posts explained how standard MIDI can supply some current at 5 Volts if implemented according to the MIDI standards. In this post, I go a little further and explain how an Arduino, … Continue reading →

Posted in Arduino, Electronics | Leave a comment

MIDI experiments: Stealing power for an Arduino

Posted on 2015/04/04 by rt

In the previous post, I explained a simple circuit that will indicate if a MIDI OUT port can provide 5 Volts and a little bit of current between pin 2 (ground) and pin 4 (+5 Volts). Not all MIDI devices … Continue reading →

Posted in Arduino, Electronics | Leave a comment

MIDI experiments: A simple MIDI tester

Posted on 2015/04/04 by rt

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 … Continue reading →

Posted in Electronics, Music equipment | Tagged | 2 Comments