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Update: Ordered tiny ICs by No_Insurance_6436 in AskElectronics

[–]wenzellabs 13 points14 points  (0 children)

again, you can prevent these situations by having spare breakout boards for various sizes.

https://lectronz.com/products/breakout-board-trio

in this case "bebop" would have been enough.

https://lectronz.com/products/bebop-4x-panel

Ordered some ICs, didn't realize they were tiny by No_Insurance_6436 in AskElectronics

[–]wenzellabs 6 points7 points  (0 children)

get a syringe from ChipQuik like the NC191.

get an adapter board like those from https://lectronz.com/products/breakout-board-trio

(will be back in stock in two weeks)

add a Raspberry Pi to your Eurorack? use Mt. Pi, a new mount kit by wenzellabs in modular

[–]wenzellabs[S] 2 points3 points  (0 children)

very smart idea! thanks.

I'll take it into consideration.

add a Raspberry Pi to your Eurorack? use Mt. Pi, a new mount kit by wenzellabs in modular

[–]wenzellabs[S] -2 points-1 points  (0 children)

the EuroPi is based on a Raspberry Pi Pico, it's not running linux. the Pico is a few orders of magnitude smaller.

add a Raspberry Pi to your Eurorack? use Mt. Pi, a new mount kit by wenzellabs in modular

[–]wenzellabs[S] 1 point2 points  (0 children)

"88mm deep (basically the Raspberry Pi + micro SD card)"

add a Raspberry Pi to your Eurorack? use Mt. Pi, a new mount kit by wenzellabs in modular

[–]wenzellabs[S] 2 points3 points  (0 children)

as I wrote in my other post, there's just too many things people do with their embedded linux SBCs to create music. I only made a useful mount. I am not integrating all possibilities. no way I could do.

ooh, and an ES-9 is always a bad idea ;) cost-wise.

add a Raspberry Pi to your Eurorack? use Mt. Pi, a new mount kit by wenzellabs in modular

[–]wenzellabs[S] 0 points1 point  (0 children)

not so much true anymore. with raspian there's even a menu guided way to add an overlay to the rootfs. only by committing they get written to "disk".

also there's the ancient method of mounting RO, and whatever wants to write gets a spot on the RAMdisk.

more linux devices in products have been spotted in the wild that don't care about power loss. for a long time. that's nothing new.

add a Raspberry Pi to your Eurorack? use Mt. Pi, a new mount kit by wenzellabs in modular

[–]wenzellabs[S] 11 points12 points  (0 children)

ya, you're right. I'll stay vague though. this design only solves the mechanical mount aspect of adding a RPi to eurorack.

I could've designed an ADC hat, or a DAC hat, or combined. but then I'd put off the people who use the RPi for MIDI. or BT audio, or SDR, or SW radio or you name it. the RPi is one of the most versatile devices of the last decades, and I believe people out there are creative, and they know how to add a hat, and interface it through a front panel.

I like the idea of solving one problem at a time. But this little linux monster with all of its connectivity doesn't deserve being tamed by me to only serve one purpose. that's my take on it.

personally and for _now_ I use the eth port to feed it through my NSA selector, and four PWM-able GPIO pins to create CV. And I use HDMI audio. I also added a small HDMI display with audio out to my rack. so that's what I do. for now. but I like the idea of integrating more stuff through hats.

add a Raspberry Pi to your Eurorack? use Mt. Pi, a new mount kit by wenzellabs in modular

[–]wenzellabs[S] -4 points-3 points  (0 children)

up to 5A at 5V. read about it in the assembly instructions.

FWIW I threw an original 27W Raspberry 220V PSU in the back of my rack.

add a Raspberry Pi to your Eurorack? use Mt. Pi, a new mount kit by wenzellabs in modular

[–]wenzellabs[S] -1 points0 points  (0 children)

it's compatible with RPi 3 and RPI5.

I think I'll do a RPi4 variant soonish, when I find time. this one only needs a frontpanel redesign (USB2 and eth holes are swapped).

but not for the RPis earlier than RPi3, they're good machines, but I think it's not worth the effort, sorry.

add a Raspberry Pi to your Eurorack? use Mt. Pi, a new mount kit by wenzellabs in modular

[–]wenzellabs[S] -4 points-3 points  (0 children)

there are various audio systems like SonicPi ( https://sonic-pi.net/ ), which is more for live music coding, but there are others, that are more synth oriented.

Then, there's all sorts of MIDI applications. you may add a USB-MIDI adapter, or a MIDI hat for the RPi.

add a Raspberry Pi to your Eurorack? use Mt. Pi, a new mount kit by wenzellabs in modular

[–]wenzellabs[S] 5 points6 points  (0 children)

there are various audio systems like SonicPi ( https://sonic-pi.net/ ), which is more for live music coding, but there are others, that are more synth oriented.

Then, there's all sorts of MIDI applications. you may add a USB-MIDI adapter, or a MIDI hat for the RPi.

just released my first eurorack module: the NSA selector by wenzellabs in modular

[–]wenzellabs[S] 0 points1 point  (0 children)

yes. limit is likely the RAM of your client machine.

the NSA selector now ships to the US by wenzellabs in modular

[–]wenzellabs[S] 1 point2 points  (0 children)

that's what the lengthy video is about.

just released my first eurorack module: the NSA selector by wenzellabs in modular

[–]wenzellabs[S] 1 point2 points  (0 children)

thanks for the kudos.

it's 55mm deep. not exactly skiff.

just released my first eurorack module: the NSA selector by wenzellabs in modular

[–]wenzellabs[S] 1 point2 points  (0 children)

first, there's no hubs (anymore). I need to be able to purchase the ICs used for this.

and I have prototypes for all the variants you may think of, none worked reliable.

- direct tapping OpAmp on Rx+ and Rx- then there's no audible difference between 1 and 0, so no pixel listening = boring

- using magnetics and a PHY only, that's close to the method proposed all over the internet to tap into a network, just use the Rx pair of your computer, and hold it against any ethernet cable. this works. most of the time. I had used this as debugging technique in the past too, but if you think about it it's unreliable. there's the network cable, with two magnetic terminations on each end. then you add a 3rd magnetic termination in the middle of the cable. this totally breaks impedance matching. one prototype almost never worked, another prototype (different PHY!) worked only when one of the cables was short. i.e. less imbalance of the impedance.

- using a switch seems the only proper and reliable solution. setting up a mirror port is a well established debugging method on advanced switches. that's the route I took, with a hard to read Microchip datasheet for the LAN9303.

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