Category Archives: Librarian

Minor Update to BN Librarian

I’ve noticed that a few people, myself included ;-), sometimes forget that, when uploading¬† new DSP code, the Blue Nebula must be powered from the 12V DC supply input. If you only have the USB cable attached it will appear to work but in fact the new code will not have been uploaded – only the effect names will have changed.

(Technical note: this is because the USB cable only powers the microcontroller and the LCD in the Blue Nebula but the memory chips require 12V from the DC input jack).

To try to avoid this confusion, I’ve added a reminder message that will pop up when you click the Upload DSP button:


Once you click OK the usual file selector dialog box will open and you can proceed as normal.

This Version of the BN Librarian is 4.04 and, as always, you can download it from the ‘Latest Updates Here’ link at the top of this page.


Updates/Releases for Mac OS X

I finally got my hands on a nice pre-owned Apple Mac Mini at a reasonable price from that well-known online auction site ūüėČ so I’ve been able to update the Mac OS X version of the Blue Nebula Librarian app to the latest version (4.03) and the new MemBuilder app is now available for Mac OS X too.DSC06063 copy

My Mac Mini is running macOS Sierra 10.12.6 but these apps should work with any Mac OS X from 10.9 onwards.

Important: If you are new to these Blue Nebula apps and you haven’t already done so, you will need to install the Java Runtime Environment (JRE) from this page on the Oracle website (choose the .dmg Mac OS X file).

To allow the Librarian and the Blue Nebula to communicate with each other you will also need to install the driver for the CH340 USB-Serial chip in the Blue Nebula, if you haven’t already done so before. (This driver is not required for MemBuilder).

Since the last release of Librarian for Mac OS X I have found a ‘signed’ version of the driver which simplifies the installation. You can find the driver here and once it’s been downloaded to your Mac double click it to unzip it, then double-click CH34x_Install_V1.4.pkg and follow the instructions. Restart your computer after installing. When you connect the Blue Nebula to your Mac and run the Librarian, click the Serial Port drop down and you should see /dev/cu/wchusbserial440 in the list (the number may differ). This is your Blue Nebula’s serial port.

If you are a Mac OS X user please leave a comment below to let me know that you are using these apps.

Blue Nebula Librarian Updated

I’ve just updated the Blue Nebula Librarian app which is now Version 4.03. Apart from a couple of cosmetic improvements the main change is to correct a bug that caused the Librarian to send incorrect values for the P2 ‘flag’ when uploading a DSP program to MEM 2. This flag tells the Blue Nebula whether to display P2 as ‘ABCEF’ or as a numeric value between 0 and 100.

You can download the latest version of Librarian for Windows 32-bit and 64-bit on the Latest Updates Here page – link above in the menu bar. Update: Apple macOS X version is now available ūüôā

Librarian User Guide in French

Guide de l’utilisateur Biblioth√©caire en fran√ßais

Many thanks to Michel Nogr√© for his hard work in translating the User Guide for the Blue Nebula Librarian into French. Michel is now enjoying a hard-earned rest on a beach in Barbados ūüôā

Si vous souhaitez t√©l√©charger le nouveau guide, il est disponible sur la page ‘Latest Updates Here’ (“Derni√®res mises √† jour ici”)

Patch Editor/Beheerder Gebruikers Handleiding

Thanks to the hard work of Piet Verbruggen, there is now a version of the Blue Nebula Librarian User Guide in Dutch for our many Blue Nebula users from the Netherlands.

Piet’s work on the eTap2hw and Blue Nebula projects plus his work experience as a Technical Author was a big help in this undertaking which was certainly no easy job!

Thanks also to Piet’s wife Anny and to¬†Tonnie Tijssen¬†for proof reading.

You can download the pdf document here and, as always, all the latest documentation and software/firmware versions¬†are available on the ‘Latest Updates Here’ page.

I’ve also updated the English version of the Librarian User Guide, mainly¬†with some minor improvements to layout¬†and a few corrections. Get it here.