small format textural synthesiser

Micro Clouds

uClouds is a small format adaptation of the original Mutable Instruments eurorack module, it uses the same circuit design and firmware as the original but crammed into only 8HP! making it perfect for live rigs and small cases where functionality per HP is a premium.

Clouds was designed by Olivier Gillet of Mutable Instruments and is a hardware implementation of a Granular Processor.

     " Clouds is focused on the realtime granularization of incoming audio signals, and their transformation into amorphous textures.

Grains of adjustable size, pitch and envelope, are extracted at controllable time offsets from the input signal. Grains are seeded randomly, periodically, or whenever the module receives a trigger."                                                                                                                                                           
Mutable Instruments 

Modules can be shipped pre-flashed with any available alternate firmware on request.

PCB layout and panel design by Jason H. J. Lim of Instruo

Micro Clouds


For orders and any other enquiries please get in touch with me at kianmcevoy@gmail.com

Fully built uClouds Modules are £250 plus postage.

Shipping costs are £7.50 to the UK, £12.00 within Europe and £15.00 Worldwide.

Payments can be made via paypal, invoices available on request.

Sold as complete modules fully built, flashed with either Parasites, Kammerl or Original firmware.

Orders are completed on demand and usually ship within two weeks.

Flashing alternate firmware via an audio signal is not supported and can cause the module to crash, requiring re-flashing with a programmer. It's advised to use a jtag programmer to change the firmware, or better yet, get me to do it for you!  

PCB and panel sets are also available for £30 plus shipping.
A bill of materials  and a component location map are available from the github repository.

WARNING this is a dense build and i'm unable to provide DIY support, not recommended as a beginners project.  

For more details about the original Clouds module by Mutable Instruments and links to dealers see the Mutable Instruments website

Open Source

PCB, schematic and original design elements provided by Mutable Instruments under creative commons CC-BY-SA-3.0 license.

Design contributions are provided by Jason. H. J. Lim under Creative Commons CC-BY-SA-3.0 license.

Git Hub Repository

In honour of the generosity of Olivier Gillet and the wider open source community 10% of all sales are donated to Glasgow Winter Night Shelter, each module sold can provide food and support for a homeless person for a month.


Fully built modules purchased directly from me are covered by a Manufacturer's warranty, for one year following the date of manufacture. This warranty covers any defect in the manufacturing of this product.
The warranty covers replacement or repair, as decided by the manufacturer. Please contact me (kianmcevoy@gmail.com) before returning a module. The cost of sending a module back for servicing is paid for by the customer.
Any modifications made to the module will void this warranty.

About Me

I'm a modular synth designer, builder, and performer currently working with Instruo.

Co-developer of the new biofeedback to cv eurorack module Scíon.
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