4024 Seven Stage Binary Counter Module

A 4024-based seven stage binary counter / clock divider module. 

Download the source files on Github: https://github.com/little-scale/eurorack/tree/master/4000-series

4093 Quad LFO Module

A 4093-based quad LFO module with square wave output and modulating / gating input for each LFO.

Download the source files on Github: https://github.com/little-scale/eurorack/tree/master/4000-series

4028 Binary Addressable Sequencer Module

A 4028-based binary address sequencer with 8 steps. Each step has a CV value and an independent gate output.

Download the source files on Github: https://github.com/little-scale/eurorack/tree/master/4000-series

Teensy 3.6 with MCP4251 Digital Potentiometer

Connecting an MCP4251 digital potentiometer to a Teensy 3.6 is straight forward. 

MCP4251 !CS should be connected to Teensy 3.6 digital pin 0. 

MCP4251 SCK should be connected to Teensy 3.6 digital pin 13 SCK0.

MCP4251 SDI should be connected to Teensy 3.6 digital pin 11 MOSI0.

MCP4251 VSS should be connected to Teensy 3.6 ground.

MCP4251 VDD should be connected to Teensy 3.6 3V3.

MCP4251 SDO does not need to be connected. 

MCP4251 !SHDN should be connected to Teensy 3.6 3V3.

MCP4251 !WP should be connected to Teensy 3.6 3V3. 

Data is written to the chip by using an SPI transfer of B000x0000 (where x is the digital potentiometer channel) followed by Bnnnnnnnn (where nnnnnnnn is a number from 0 - 255 for the pot data). See below for an Arduino-based code example and breadboard setup.

Sample Pack: Pocket Operator PO-12

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Sample Pack: Erica Synths Analog Drums

I've decided to start making a few sample packs for work, so I thought why not make them available to everyone!? To start with, here is a set of 464 samples recorded directly from Erica Synths drum modules. Get the pack at gum.co/analog_drums for AUD$2.

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