julian
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- julian
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in general the penrose is protected agains wrong polarity with a reseting fuse. - how is your penrose connected to other modules for testing? just something like an LFO/manual CV to CV input and the CV out to an oscillator? - the LEDs and buttons a…
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so just to recap: - without OLED the LXR worked (LEDs light up, chaselight etc) - soldered OLED -> nothing wokrs anymore - no LEDs etc - you removed the OLED - new powersupply - still nothing, no LEDs etc... so lets see: - Do you still measure …
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oh no! :-( http://www.heise.de/newsticker/meldung/Musikmesse-schrumpft-Prolight-Sound-waechst-2612194.html (german) they plan to abandon the buisness days at messe, reduce the number of halls for music to 3 and sprinkle some meet and greet with pop…
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I have this problem on one of my racks and solved it with a cheap car gnd loop isolator on the LXR audio out. I will try to get a DC/DC isolator part with my next parts order for the trigger IO and see if that helps.
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mine as well... I should be there around the same time
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on the 2nd page of the mixer section is the "len" (pattern length) parameter
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do you have the gnd loop problem on the modular audio outs??? In certain setups I have noise on the LXR audio outs, but never so far on the modular O_o
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for the firmware I recommend the /bin folder https://github.com/SonicPotions/Penrose/tree/master/bin for one there is an amalgamated image that combines the bootloader and the firmware image into one hex file. Then there is also the flashAvr.sh bas…
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normally any alphanumeric display should work. check for HD44780 compatibility to be sure. So the one from your link should work fine. regarding the characters you don't need. You will always have them. Either you will get western/chinese or wester…
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what do you mean by fades away? is it getting lower and lower over some time or is it suddenly disappearing. there is not much to the gate out. AVR digital out -> opamp buffer -> output the other chanel of the dual opamp (mcp602) is used for…
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my guess is the -e option is the culprit here. this tells avrdude to make a full "chip erase" so the 3rd step will erase the software that was flashed in the 2nd step I would also remove the "-V" option, so the content of the AVR will be verified a…
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its all in the github repo. Here is a hex file with bootloader and firmware combined. https://github.com/SonicPotions/Penrose/raw/master/bin/FirmwareAndBootloader.hex I see you want to make good use out of your new AVR programmer
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the 6 screws on the side? anything else was missing? like the sticky rubber feet? I have to measure the size of the threading. Or I could send you the screws. should be here somewhere
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Hast Du auch einen dazu kontributiert? nope. Last year I have sponsored a LXR kit as a price But as it is organized by a forum where I've been active for years I thought I promote it a little bit.
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So far it is completely unused. I just thought better to have an expansion header than to miss it in the future You can use it to add additional buttons, LEDs and potentiometer to the machine. I guess for Audio rate CV it could be a little bit sl…
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it's not a real slew. more like a PWM crossfade between to fixed states. It cant decide between 2 steps and jumps between them really fast. The more the CV reaches step 2, the more often it jumps to the 2nd value. But this results in some kind of au…
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Great! I'll think I make an announcement over the next days. So far only 1 person has found and complained about the bug anyway
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great work! ^:)^ these are the AVR fuse settings I use: # set fuses avrdude -B100 -c usbasp -p m644 -U lfuse:w:0xff:m -U hfuse:w:0xd8:m -U efuse:w:0xfc:m # flash bootloader avrdude -B1 -c usbasp -p m644 -U flash:w:bootloader.hex:i # lock boo…
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I don't know the d-pole. Is it a normal ringmod or something fancy?
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anyone up for beta testing a bugfix update for the Penrose quantizer? In the continuous mode the CV in was too sensitive, so with a CV exactly between 2 notes the quantizer could not decide on a note and rapidly toggles between 2 active steps.. It a…
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so you successfully transplanted the STM32 from your discovery board to your mainboard? :^o I was just about to offer you a replacement mainboard I still have no idea what could have caused your chip to be fried :-/ about the file - I think the …
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hahaha not really #-o Glad it is solved.
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for this the best practise is to insert the LEDs last, but do not solder them. then put the PCB in the top of the case and fix it with some screws. Now you can align the LEDs with the holes in the front and solder them in place.
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for a small fee I could offer the special A++ grade 'hand painted' cases o=> I could even wait until fullmoon |)
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Separate Penrose PCBs and Panels are now also available in the shop. Sourcecode can be found on GitHub. Schematic and BOM are linked in the assembly guide
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Enclosures are back in stock. http://goo.gl/4ewAcP I'm sorry to say that the guy doing the screenprinting fucked up, resulting in some minor defects in the bigger areas of the screenprint 8-} In general the quality of the print and enclosures is g…
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the soldering on the IC between the 2 mainboard conectors looks a little bit suspicious. like the upper left 2 pins touching on the pic.
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ICs are not inserted yet I guess? hard to spot tiny solder bridges on the picture you provided... but my guess would be that'S what causes a short. maybe try to reheat suspicious looking solder joints and make sure no solder joints touch their neig…
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1 ohm is definitely a short somewhere I'll have a closer look on your picture
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how did you measure the short? if there is a short your voltage test would not read 5V. what is the resistance between gnd and 5V?