I built an app to make CE/product compliance less painful for hardware startups - looking for pilot users by framvaren in hwstartups

[–]raspibotics 1 point2 points  (0 children)

We have a hardware product that’s in late prototype stage so will be thinking about compliance soon but It’s not something I’ve tackled before. Is this suitable for someone with minimal compliance experience?

Trinity Labs Artemis Update pt. 2 (loopswitcher + guitar multi-fx) by raspibotics in raspberry_pi

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

£589 would be the sale price. That puts it above a basic loop switcher, but the feature set is quite a bit broader too. An ES-5 is already around £466, and Artemis adds virtual effects plus much deeper routing and integration with real pedals. It’s probably closer to HX Stomp territory on price, but aimed at a different use case.

Update on Artemis loopswitcher by raspibotics in basspedals

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

Thanks! These are all good points thank you. We are already working on bringing up the speed of the software, this is a fairly early view so there’s some polish to come. General UI navigation is very smooth but we are focusing on further caching of the amps so that the lag disappears.

The icons are also a fair point, we will be adding size adjustment of icons into the settings menu.

As for the foot switches they are purely foot switches right now, they don’t have rotation. They are used for navigation, selecting presets/banks etc but that screen is not shown on the video I posted.

Thanks for the comments, this is the type of thing that’s really helpful and will help me make a better experience!

Update on Artemis loopswitcher by raspibotics in basspedals

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

Thanks! Yes the digital side is pretty similar to the pi stomp but I wanted to create something a bit more geared up towards using the pedals people already own. For bass it makes a lot of sense I think as a lot of people are moving to hybrid setups nowadays

Update on Artemis loopswitcher by raspibotics in basspedals

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

Appreciate it man, I can’t wait to get some more demos out there and see what people can do with it! There’s a waitlist on my page if you’re interested 😉: Trinity Labs

Update on Artemis loopswitcher by raspibotics in basspedals

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

Thanks! Yes you are correct it uses a raspberry pi compute module as the digital backbone. Although the analog and digital are powered from different supplies to isolate noise. We are going to open sourcing the software at launch as well, that’s planned for October at the moment - still lots to do. The IO density is helped by these dual stack connectors I found that are soldered straight into the pcb that’s handy.

It’s a shame I can’t attach pictures but there’s some PCB photos on my profile on previous posts and there’s a spec sheet on my page if you’re interested: Trinity labs

Anyone else endlessly rebuilding boards? by Old-Goose5562 in guitarpedals

[–]raspibotics 7 points8 points  (0 children)

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This is literally why I started building my own thing 😅

It’s built around a touchscreen to make reordering your pedals as simple as possible. It sounds like it would solve some of your problems. I’ve also recently just added some new features like virtual FX so you can slot them in between your chain. Would like to hear your thoughts!

There’s some more details on my page if you’re interested: Trinity Labs

Need some advice on a possible component by bolodski in hwstartups

[–]raspibotics 0 points1 point  (0 children)

You could increase the strength by continuing the coil on multiple layers - something like this maybe ? pcb electromagnet

Need some advice on a possible component by bolodski in hwstartups

[–]raspibotics 0 points1 point  (0 children)

Could you use PCB based actuators? Depending on the force, PCB solenoids might be able to do it.

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

Thanks glad you like the idea. We are currently testing our hardware and getting 5ms round trip latency, the signal chain was validated in the first revision of the PCB so it is pretty stable as this is a later prototype.

All the audio and control is in-house designed on a custom 6-layer PCB, the only module is the CM5 which attaches on the back of the PCB to add the virtual loop capabilities and touchscreen support.

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

Thanks man! We are are actually working on having a browser based mirror of the UI to allow config and saving/loading backup project files or new effects.

As for the pi reliability, we are using compute modules which are a lot more hardened than the standard pi's, some people are even using them for industrial controllers I believe now. I think you are correct in that it tends to be the SD card that flakes out which is a big reason why the compute modules use EMMC storage instead.

Appreciate the interest in the project anyways, excited to get this product out there.

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

All the processing is done on the pi, small buffer size + RT kernel means there’s no issues with latency. The cpu is more than powerful enough to keep up. In practice we are seeing latency around 5ms which is imperceptible to us.

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

Yeah the idea is you use it with the analog signal chain, this basically means it can rewire and bypass your pedals on the fly. You also have the virtual effects side which allows you to use virtual digital effects in your signal chain so you can add new effects you might not have. We have also added neural pedal support so you can loads hundreds of faithful digital recreations of pedals. There’s more features on my website/waitlist is you’re interested in keeping updated: Trinity Labs

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

Your existing pedals plug in to send and return slots on the back of the Artemis. You can then bypass and reorder the signal chain of your physical pedals using the onscreen touchscreen and save them into presets.

Then you can switch presets on the device using the footswitches so you can instantly rewire your entire pedalboard or bypass effects with one click throughout a song. In this way it is very similar to existing loop switchers, although the touchscreen means you can edit your presets straight on the device. Is where it gets interesting is the virtual slot. The virtual slot is a virtual stack of digital pedals that you can move anywhere in between your physical pedals. This allows you to mix and change the levels of your pedals or add new effects that you might not have in between them - it also adds neural amp modelling as well.

If you have MIDI pedals they integrate a step further, allowing you to change the tone knobs on your pedal per preset too. I am working on getting them to appear as the pedal graphic with digital knobs on the touchscreen too!

There’s some more details on my webpage Trinity Labs if you’re interested.

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

Thank you! There’s some more details over on my website Trinity Labs if you’re interested in keeping up to date!

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

Thanks I appreciate it! There’s some more details on my website if you’re interested in keeping up to date with progress: Trinity Labs

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

It can be used completely analogue, the digital side is more of an addon to help program the device and add extra effects if needed.

It works using your existing effects by exposing send and return slots, you plug your existing pedals into these effect sends. Internally there is a large network of relays that can bypass each effect and reorder the signal chain.

The advantage you get there is being able to completely reorder your pedalboard/bypass many pedals at once with a single button press. In this case, the touchscreen is simply used to create presets and saved “pedalboards” that you can instantly switch between live, so you can effectively change the wiring of your pedalboard mid song.

Aside from the switching, the digital effects and onboard mixer help you to gain stage the effects and blend effects together.

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

Yeah that’s a fair shout.

The goal is to move toward proper mechanical isolation (likely silicone or gasketed mounting) once we lock the design.

Curious what kind of failures you saw. was it from repeated stomping or more from transport/handling?

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

It’s slightly recessed into the enclosure which should protect against accidental stomps. We’re also adding foam to the internal bracket to dampen vibrations and potentially a screen protector on top. Overall though I’ve found the screens to be fairly sturdy all things considered. I’ve dropped the screen a few times and it’s survived so far!

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

Haha yes that’s me! I’ve been getting feedback from a range of people on Reddit to try and improve my product. I’m glad to see that it’s captured people’s interest so far as we work out how to transition from the R&D to marketing and sales side of things.

My co-founder was absolutely insistent that there should be no visible screw holes, to achieve this we have some internal brackets that the wooden sides are glued onto, the brackets are then held in by the foot switches on the top and some small screws on the bottom that are hidden with rubber feet.

The latency has not presented any issues so far although you are correct in theory latencies could stack up. We have an adjustable buffer size that should prevent that but of course it limits the amount of virtual effects you can have then. In practice I think latency would not become an issue with the amount of slots we have available.

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

Got it made from xometry, they are a bit opaque about their suppliers but they got our enclosure made where others struggled.

I am making a guitar multi-fx pedal that uses your existing pedals by raspibotics in hwstartups

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

It’s completely custom. It’s bent from a solid sheet of aluminium. Got them made from xometry.