I started a new project and the idea is to hack the MPK play with a MIDI over Bluetooth(BLE) add-on. https://github.com/brorgustav/AKAI_MPK-PLAY_BLE_MODIFICATION The MPK PLAY can run on batteries which makes it a nice candidate for adding BLE to since it would be completely wireless (if i steal the voltage from the battery to my microcontroller). …
Progress on my analog poly synth
During the summer I left my apartment to spend time at my familys summer house. I spent some evenings placing components on my x6 oscillator PCB. So far I’ve soldered the oscillator board, the connector board and a simple mixer to sum the oscillator signals (to test it). I’ve put x6 VCAs and x6 DACs …
Volca sample MIDI out modification
The modification is easy, three wires (red, yellow and black on picture) and a TRS-jack (3.5mm) for output. The TRS-jack can barely be fitted so get the smallest one
Keyboard library for Arduino based musical/midi instruments
Modified Keypad library for more polyphonic notes https://github.com/brorgustav/BGW_keyboard Will be modified further as I go along and notice I need more functions than keypad.h has
Hacking the keyboard of m-audio Axiom 32
Hacking the keyboard of m-audio axiom 32 I love this keyboard because of the size/octaves and how it feels when being played Reference: R=Row C=Column VC = Velocity column (its used to determine velocity) This is how the developers mapped the keys in columns/rows on the flex cable (in order): R1, R2, R3, R4, R5, …
Polyphonic DAC with teensy 3.6
https://github.com/brorgustav/polyphonic_dac I’ve spent the last days working on Arduino code for a polyphonic 6/12-voice DAC (from USB-host midi keyboard) with mcp4822 chips and a teensy (connected to AKAI LPK). This code is a work in progress (but works) and shouldn’t be considered stable. It’s with a teensy 3.6 and USB connected to USB-host pins. The …
Tubes on low voltage
So i recently got interested in using tubes on lower voltages and incorporating into designs. I found out that there are some designs primarily with 12AU7(called ECC82 in europe), for example a link to the most popular one, The valve caster: *document with summary of the original design and some user modifications *a more beginner …
the brand new, MELLOWAVE!!
YAY a new project, AGAIN! This time its with the robertsonics wavtrigger. Its a embedded wav-sampler and microcontroller. The big brother which has more features which is more expensive is called the tsunami. wav trigger: https://robertsonics.com/wav-trigger/ the tsunami: https://robertsonics.com/tsunami/ I’ve been craving to make a hardware mellotron since i love the sound of it, but …
USBhost-MIDI and Arduino
Working with usb-host midi for arduino has been kinda bumpy. It’s hard to get it stable and its also a hassle with different USB ports depending on what Arduino i use. This could make it tedious designing into panels aswell since you’d have to use a OTG cable integrated into the design or something similiar. …
The history of the prophet synths
An interesting and inspiring video showing the history of the prophet-synths. Some of them uses CEM (curtis electro music) chips just like my planned polyphonic synth build.