This is a PCB version of the awesome HAGIWO Clock SYNC LFO. It was published on Github by mzuelch and we put together the design & kits in our lab.

The module is a Arduino-based LFO and can be clocked / synced via the trigger input and offers internal modulation to create complex waveforms. It can be modified / reprogrammed easily with the Arduino IDE and a USB-C cable.

It offers six waveforms and the following hardware features:

• Panel Design by bkrsmdesign
• Knob1: Amplifier control. Set the output voltage
• Knob2: Phase control. Set the phase from 0-360°
• Knob3: Waveform control. Select the waveform type.
• Knob4: Internal modulation, creating complex waveforms.
• CLK in: Clock IN.

Changes from the original design:

• PWM -> Analog Conversion by active Steiner LPF (fg=500Hz) instead of passive RC network
• Unipolar output changed from 0/+5V to 0/+10V
• Additional bipolar output +/-10V
• Additional inverted bipolar output +/-10V

The SYNCLFO module comes in three flavors: basic kit, full kit and built unit.

The full kit includes everything needed to build one module. Also it has all the passives presoldered, so you just need to solder the power socket, 4 x thonkiconns jacks, microcontroller, 1 LED and that´s it. it´s ready. The microcontroller is included and programmed already.

The basic kit includes everything except:

1x Power connector 1x ~10cm Cable 1x Microcontroller (Arduino nano v3) 2x 15-Pin Female header 4x 100k Pots & 4x knobs 1x LED 4x thonkiconns 3,5mm Jack

Basic Kits also always have all the smd parts presoldered.

DIY Info:

Building the Module is simple and suited for beginners. The Kit comes with SMD parts already soldered.

Find more Info and Assembly Instructions, Code, BOM check and the repository here:

https://www.modulargrid.net/e/other-unknown-hagiwo-clock-sync-lfo