A platform for building interactive control and sensing devices using MIDI and OSC built with Zephyr RTOS.
See the codeOpenDeck is a platform for building interactive control and sensing devices using MIDI and OSC. From USB MIDI DJ controllers and DAW control surfaces to Ethernet-connected OSC nodes, sensor interfaces and media installations, OpenDeck supports a wide range of hardware projects.
The main platform features:
The platform lets you focus on hardware and interaction design rather than tweaking and debugging firmware.
Click the image below for a demo video of the OpenDeck configurator
Configurator is available either online or offline.
Some of the devices built with OpenDeck

OpenDeck supports the following peripherals:
Each sensor has specific configuration options such as smoothing, selectable event output etc.




OpenDeck provides extensive MIDI and OSC functionality:
A detailed guide to all supported configurable features can be found here.
If the feature you want isn't supported yet, don't feel discouraged. Open up a discussion thread and let's talk about it.
Currently, there is only one official board available to buy: the L variant, where "L" stands for "large". The board is available on Lectronz store.

This board is based on Raspberry Pi RP2040 microcontroller and features the following:
The L board doesn't have OSC support. It focuses on providing lots of I/O specifically for USB and DIN MIDI use-cases. OSC functionality is available on a number of supported Ethernet-enabled boards.
The firmware supports various other boards, both small and large:
| Board | MIDI | OSC |
|---|---|---|
| Adafruit Grand Central M4 Express | USB, DIN | No |
| Adafruit Metro ESP32-S3 | USB, DIN | No |
| Adafruit Metro ESP32-S3 + W5500 Ethernet Shield | USB | Ethernet |
| Adafruit Metro ESP32-S3 + W6100 Ethernet Shield | USB | Ethernet |
| Adafruit Metro RP2040 | USB, DIN | No |
| Adafruit Metro RP2040 + W5500 Ethernet Shield | USB | Ethernet |
| Adafruit Metro RP2040 + W6100 Ethernet Shield | USB | Ethernet |
| Arduino Nano 33 BLE | USB, DIN, BLE | No |
| LILYGO T-ETH Elite | USB | Ethernet |
| nRF52840 DK | USB, DIN, BLE | No |
| nRF5340 DK | USB, DIN, BLE | No |
| Olimex ESP32-POE | No | Ethernet |
| Raspberry Pi Pico | USB, DIN | No |
| Raspberry Pi Pico 2 | USB, DIN | No |
| ST Discovery F407VG | USB, DIN | No |
| ST Nucleo F767ZI | DIN | Ethernet |
| ST Nucleo H563ZI | DIN | Ethernet |
| ST Nucleo H753ZI | DIN | Ethernet |
| STM32F411 Black Pill V3+ with populated external flash | USB, DIN | No |
| Teensy 4.0 | USB, DIN | No |
| Teensy 4.1 | USB, DIN | No |
| Waveshare Core405R | USB, DIN | No |
| Waveshare ESP32-S3-ETH | USB | Ethernet |
| W5500-EVB-Pico | USB | Ethernet |
| W5500-EVB-Pico2 | USB, DIN | Ethernet |
| W6100-EVB-Pico | USB, DIN | Ethernet |
| W6100-EVB-Pico2 | USB, DIN | Ethernet |
| wESP32 | No | Ethernet |
For more details on supported boards, check the wiki page. Support for custom boards can also be added.
Available on dedicated Wiki section.
Need help? Want to show off your OpenDeck-based builds? Head over to Discussions!
OpenDeck source code is available under Apache License v2.0. Zephyr RTOS, which OpenDeck is built on top of, is also licensed under Apache License v2.0.
Third-party components with different licenses:
u8g2: Two-clause BSDvl53l4cx: Three-clause BSDvl53l5cx: Three-clause BSDzlibs: MIT34 followers · starred Jun 2020
1,881 followers · starred Feb 2019
782 followers · starred Nov 2025
798 followers · starred Oct 2021
A platform for building interactive control and sensing devices using MIDI and OSC built with Zephyr RTOS.
See the codeOpenDeck is a platform for building interactive control and sensing devices using MIDI and OSC. From USB MIDI DJ controllers and DAW control surfaces to Ethernet-connected OSC nodes, sensor interfaces and media installations, OpenDeck supports a wide range of hardware projects.
The main platform features:
The platform lets you focus on hardware and interaction design rather than tweaking and debugging firmware.
Click the image below for a demo video of the OpenDeck configurator
Configurator is available either online or offline.
Some of the devices built with OpenDeck

OpenDeck supports the following peripherals:
Each sensor has specific configuration options such as smoothing, selectable event output etc.




OpenDeck provides extensive MIDI and OSC functionality:
A detailed guide to all supported configurable features can be found here.
If the feature you want isn't supported yet, don't feel discouraged. Open up a discussion thread and let's talk about it.
Currently, there is only one official board available to buy: the L variant, where "L" stands for "large". The board is available on Lectronz store.

This board is based on Raspberry Pi RP2040 microcontroller and features the following:
The L board doesn't have OSC support. It focuses on providing lots of I/O specifically for USB and DIN MIDI use-cases. OSC functionality is available on a number of supported Ethernet-enabled boards.
The firmware supports various other boards, both small and large:
| Board | MIDI | OSC |
|---|---|---|
| Adafruit Grand Central M4 Express | USB, DIN | No |
| Adafruit Metro ESP32-S3 | USB, DIN | No |
| Adafruit Metro ESP32-S3 + W5500 Ethernet Shield | USB | Ethernet |
| Adafruit Metro ESP32-S3 + W6100 Ethernet Shield | USB | Ethernet |
| Adafruit Metro RP2040 | USB, DIN | No |
| Adafruit Metro RP2040 + W5500 Ethernet Shield | USB | Ethernet |
| Adafruit Metro RP2040 + W6100 Ethernet Shield | USB | Ethernet |
| Arduino Nano 33 BLE | USB, DIN, BLE | No |
| LILYGO T-ETH Elite | USB | Ethernet |
| nRF52840 DK | USB, DIN, BLE | No |
| nRF5340 DK | USB, DIN, BLE | No |
| Olimex ESP32-POE | No | Ethernet |
| Raspberry Pi Pico | USB, DIN | No |
| Raspberry Pi Pico 2 | USB, DIN | No |
| ST Discovery F407VG | USB, DIN | No |
| ST Nucleo F767ZI | DIN | Ethernet |
| ST Nucleo H563ZI | DIN | Ethernet |
| ST Nucleo H753ZI | DIN | Ethernet |
| STM32F411 Black Pill V3+ with populated external flash | USB, DIN | No |
| Teensy 4.0 | USB, DIN | No |
| Teensy 4.1 | USB, DIN | No |
| Waveshare Core405R | USB, DIN | No |
| Waveshare ESP32-S3-ETH | USB | Ethernet |
| W5500-EVB-Pico | USB | Ethernet |
| W5500-EVB-Pico2 | USB, DIN | Ethernet |
| W6100-EVB-Pico | USB, DIN | Ethernet |
| W6100-EVB-Pico2 | USB, DIN | Ethernet |
| wESP32 | No | Ethernet |
For more details on supported boards, check the wiki page. Support for custom boards can also be added.
Available on dedicated Wiki section.
Need help? Want to show off your OpenDeck-based builds? Head over to Discussions!
OpenDeck source code is available under Apache License v2.0. Zephyr RTOS, which OpenDeck is built on top of, is also licensed under Apache License v2.0.
Third-party components with different licenses:
u8g2: Two-clause BSDvl53l4cx: Three-clause BSDvl53l5cx: Three-clause BSDzlibs: MIT34 followers · starred Jun 2020
1,881 followers · starred Feb 2019
782 followers · starred Nov 2025
798 followers · starred Oct 2021