GRAINS is a programmable multipurpose module that has first been developed by Ginkosynthese for Eurorack. The AE Modular version is 100% compatible with the source code for the original, but there are a few added features. It is based on the Atmega 328 micro controller, well known as the core of the Arduino Uno, Nano and other boards, and can act as a granular sound player as well as different other functions depending on the firmware. It can be programmed directly by the Arduino IDE via the integrated USB socket on the front side of the module via the included USB cable.
Module power consumption: 12 mA
Bus outputs on the left hand bank of sockets.
Please note: IN 3 and Pot 3 are not related to each other, they are completely independent!
How to install other Firmwares
You can easily install different firmwares on to the GRAINS module or even develop your own programs!
The following firmwares are currently available from the Ginkosynthese website:
To install those firmwares on the module you need to follow these steps:
The firmware codes from the Ginkosynthese website are mostly single files with the ending .ino which means that they are Arduino sketches. You can open them in the Arduino IDE by double clicking on the filename.
Once you have the file open in the Arduino IDE you can upload them to the GRAINS module by clicking the Upload icon (depicted as an arrow pointing right).
Once the IDE shows that upload is complete you can disconnect the USB cable and use the GRAINS module with the new firmware.
Developing your own Firmware
Using the existing codes as example you can either make changes to them or develop your own firmware from scratch. The following diagram shows how you can access the various inputs, outputs and controls from within your code:
This video explains the module in more detail and has some patch examples for various firmwares.
This code repository contains various firmwares that have been developed specifically for the AE Modular GRAINS module. This has started with the work by German author and software developer Mathias aka @visuellemusik. We encourage you to analyse the code and post your own firmware which we would add to this growing repository.
You can download each firmware as an individual zip file or the whole lot from the Release Page.
This video explains how the ByteBeat-Xfade firmware works followed by a little improvised jam.
And this video explains the workings of the SpellOrSpeak firmware, also developed by Mathias.
This manual is a community work in progress. If you would like to help out with completing this manual please send a PM to @admin at the AE Modular Forum. The status of each page can be seen on the Trello board at https://trello.com/b/HNd0dBt7/ae-manuals