[$11] DIY eurorack modular synth SSI2140 VCF | 4pole Low Pass Filter

video upload by HAGIWO

"My 77th original eurorack modular synth DIY projects.
4 pole low pass filter based on SSI2140 VCF IC.

working documents (schematics)
https://note.com/solder_state/n/n9fd3...

Study of SSI2140 Q VCA function (patreon)
Video of waveforms when tuning the resistance of the SSI2140 Q VCA.
https://www.patreon.com/posts/study-o..."

[$25] DIY eurorack modular synth Hard/Soft SYNC VCO with Arduino uno R4 , digital VCO

video upload by HAGIWO

"My 76th original eurorack modular synth DIY projects.
Arduino UNO R4 based digital VCO , it has Hard/Soft SYNC function.
Since the SYNC frequency is controlled by CV, SYNC sound can be created with fewer modules.

working documents ( code & schematics)
https://note.com/solder_state/n/n79d1..."

[Prototype] Arduino UNO R4 synthesizer : modular synth simple VCO

video upload by HAGIWO

"Modular synthesizer VCO. using Arduino uno r4 for technical verification.
Supports V/oct and audio output via built-in DAC.
Since this is a verification circuit, it is not recommended to make a module with this circuit as it is.

working documents ( schematics & code)
https://note.com/solder_state/n/na5ab..."

[$5] DIY eurorack modular synth Dual Slew Limiter

video upload by HAGIWO

"My 74th original eurorack modular synth DIY projects.
Dual Slew limiter , I aimed for simple functionality with few components.

working documents ( schematics)
https://note.com/solder_state/n/n09b1...

Please support me to continue projects.
In patreon you will find content about my background , technical information and CAD data.
https://www.patreon.com/hagiwo"

Description (Google translated):

The 75th work of my own modular synth.
One of the most basic modules of a modular synth is the Slew Limiter. Eurorack's most popular module, Make noise Maths, also has this slew limiter function.

I have also created modules with Slew limter functionality, but since I have never created a Slew limiter itself, I decided to create one.

Product specifications
Eurorack standard 3U 6HP size
Power supply: 15mA (+12V), 15mA (-12V)

Dual Slew Limiter with two types of functions.
Priority is given to low price and fewer parts.

top of module
Slew Limiter allows you to select the slew rate range from three types.
Select 3 types of range with the toggle switch.
L range: Assumed to be used for slow CV such as LFO
M range: Assuming the use of pitch CV portamento
S range: Assumes the use of an audio frequency low-pass filter
Control the slew rate with Pot.

Supports bipolar input.
Since the accuracy of the output voltage with respect to the input voltage is high, it can be used for V/oct pitch CV.

module bottom
Slew Limiter allows you to set Rise and Fall slew rates individually.
It is assumed that ASR envelope generator will be used.

Supports bipolar input.
Due to the circuit, the accuracy of the output voltage with respect to the input voltage is low. The use of V/oct pitch CV is not assumed.

Hagiwo's 9$ DIY Chord VCO v2

video upload by MrCaliforniaD

[ $9 ] DIY eurorack modular synth CHORD VCO v2 with Seeed XIAO RP2040 | Raspberry pie pico

video upload by HAGIWO

"My 61th original eurorack modular synth DIY projects.
RP2040 based 5 polyphonic CHORD VCO , easy to play chord progression.
Built-in quantizer and autoharmonics.

working documents ( schematics & source code )
https://note.com/solder_state/n/n64b9..."

[$10] DIY eurorack modular synth Bio feedback EMG CV generator | with AD8232 module

video upload by HAGIWO

"My 73rd original eurorack modular synth DIY projects.
Bio feedback CV module. Amplifies surface EMG(ElectroMyoGraphy) and outputs as CV.
Like Instruo SCION, biofeedback is a modular synth expression technique.

working documents ( schematics)
https://note.com/solder_state/n/ne1ed...

Please support me to continue projects.
In patreon you will find content about my background , technical information and CAD data.
https://www.patreon.com/hagiwo"

[$23] DIY eurorack modular synth DSP Chorus & Reverb FX | with ANALOG DEVICES Blackfin DSP IC

video upload by HAGIWO

"My 72nd original eurorack modular synth DIY projects.
ANALOG DEVICES Blackfin DSP development board based Chorus & Reverb FX module.
Since it uses a development board that is only available in Japan, it may not be of much help.

working documents ( schematics , code)
https://note.com/solder_state/n/nda18..."

[$8] DIY eurorack modular synth V3320 VCF | 4pole low pass filter

video upload by HAGIWO

"My 69th original eurorack modular synth DIY projects.
V3320 based 4pole low pass filter module.
V3320 is second source IC of CEM3320.

working documents ( schematics )
https://note.com/solder_state/n/n3723...

Schematics(PDF),BOM,more pictures
https://www.patreon.com/posts/8644625...

DIY $6 V2044 VCF
https://note.com/solder_state/n/n0fab...

0:00 intro
0:15 Low pass filter
1:23 self-oscillation
2:09 create kick sounds
2:35 compare with DIY V2044 VCF
3:15 spec

Please support me to continue projects.
In patreon you will find content about my background , technical information and CAD data.
https://www.patreon.com/hagiwo

-------------------------------------------------------------
Repository of HAGIWO's DIY Modular Synth
https://note.com/solder_state/n/n54e0..."

Diy Drum Sample Hagiwo Synthesizer

video upload by GlakGlikGluk

"This sample drum module was made with Seeeduino Xiao which processes wav data converted to binary as a sample program that is saved to internal memory, in my scheme I did not attach a trigger switch and bipolar voltage safety because I only used one 9 volt power supply. you can download the schema and the ino program that I'm already using on my google drive
.
Link :
https://drive.google.com/file/d/1vAIV...
.
Caution use a trigger below 3 volts otherwise you will damage it
.
BOM List
Seeeduino Xiao
IC Dual Opamp MCP6002/LMV358i
Rail to rail single supply
Led White/Red
Knurling Bolt/Flat head screw
SPDT togle switch
Female jack 3,5mm
Female jack 6,5mm
Resistor 33K/20K/10K/100 ohm
Capacitor 22nF
Elco 10uF/1uF
Regulator 78L05
Diode 1N4001
.
give a patreon donation so that Hagiwo's youtube channel can develop more, thank you
.
#synthdiy #drumsynth #drumsample #seeeduinoxiao #synthesizer"

Prototype CV Sequencer Arpeggiator / DIY modular synthesizer with Arduino #shorts​

video by HAGIWO

"USE Arduino nano, SSD1306 OLED, MCP4725 DAC."

DIY eurorack modular synth $8 Envelope Generator with arduino / Make Noise MATHS type waveform

HAGIWO modular synthesizer channel

My third arduino projects.
Use Arduino and MCP4911 10bit DAC.

working documents ( Source code )
https://note.com/solder_state/n/nfaaf...

VCO: mutable instruments plaits
VCF: DSM01 Curtis Filter
Sequencer: division6 dual mini sequencer

DIY eurorack modular synth $35 YAMAHA FM VCO with arduino and YMF825 / DX7 type synthesizer module

HAGIWO modular synthesizer channel

"My second arduino projects.
Diy eurorack modular synthesizer FM VCO module with arduino and YMF825.
YMF825 is DX7 type 4 OP FM sound source IC.
The sounds are usefull for ambient PAD and bell.

Get YMF825board from https://www.switch-science.com/catalo... or https://akizukidenshi.com/catalog/g/g... (Probably limited to Japan)"

See the HAGIWO label below for more.

DIY $7 LFO/VCO modular synth with arduino nano and AD9833 DAC / eurorack synthesizer module

HAGIWO modular synthesizer channel

"Aliexpress sell very cheap DAC module and arduino nano.
We can make LFO or VCO module only $7 or less."

You can find aditional posts featuring HAGIWO here.

DIY modular synth / $20 100kind DSP multi effect eurorack module / how to make and modify

HAGIWO modular synthesizer channel

100 FX eurorack module

"1:40 DIY process

Modify $20 multi effect FX pcb circuit to eurorack modular synthesizer.

all efects review [posted here]"

$20 100 DSP effects karaoke FX board review (no talking) with novation circuit/for diy guitar pedal

HAGIWO modular synthesizer channel

You can buy it from aliexpress.
It is very low cost , but qualiry is pretty gooood!

I'm planning to build it to modular synthesizer.

effect list:
00-:small hall
03-:medium hall
06-:large hall
09:church
10-:small room
13-:medium room
16-:large room
19:hall

CLICK FOR MORE »