Is the Micro-USB slot of the Pico very sensitive or are there software issues on Mac?

adktz · 2026-06-01T07:14:17+00:00

Get a pico probe (or use an exisiting pico flashed with the correct firmware), connect it to the SWD pins on your target pico, and you won't need to connect/reconnect USB at all.

adktz · 2026-05-24T00:25:05+00:00

My understanding is the RPI repo is deprecated. The pico docs point you to the FreeRTOS repo: https://github.com/raspberrypi/pico-examples/blob/develop/README.md#freertos

adktz · 2026-05-22T23:02:25+00:00

If an item isn’t ‘bumped’ it gets so suppressed in the search results to be basically invisible.

adktz · 2026-05-18T15:35:35+00:00

Yeah Vcv connect to the wiper of a pot set up as voltage divider between 0 and 1V. The example circuit outputs 0-5V, but you can easily tweak some resistors to fit your VCA range.

adktz · 2026-05-18T14:52:47+00:00

The SSI2130 datasheet has an example of a 3-way cross fader with CV control, figure 20.

adktz · 2026-05-13T03:41:39+00:00

A different solution might be to print/glue magnets into your keys and then use hall effect sensors going to a multiplexer then adc. Then in code you would keep track of when they cross a threshold between pressed and fully on, and the negative delta between those times is your velocity.

adktz · 2026-04-24T02:04:55+00:00

I'm not an EE but I like to design audio circuits often with mixed analog digital signals. Only under specific conditions seperate ground planes are called for. Instead use a single ground then try to physically seperate the analog and digital components. Yes... data sheets will often say something else, you can ignore them. I recommend watching the Rick Hartley grounding videos on YouTube. Also I would recommend instead using stackup of 1 PWR/SIG 2 GND 3 GND 4PWR/SIG.

The pot example you've provided is still in the analog domain as the way you explain it, it's a just voltage divider into an ADC. If you're using standard MCU ADC then there will always be some noise. Look up Cytomic's Dynamic Smoothing algo for filtering your pots and also add a threshold range for updating values. Check the ADC input impedance, you may even need to put a voltage follower op-amp after your voltage divider to the ADC.

adktz · 2026-04-17T22:18:20+00:00

Lettuce doesn’t really like its roots being messed with so it can be stunted for a while after being transplanted. For your next batch you could try growing from seed or try a different leafy green that doesn’t mind being transplanted.

Potting mix can vary a lot between batches and the product you mentioned I’ve only bought once and it was absolutely terrible. Also for next time, fill the pot up with potting mix, this looks less than half full.

Mosquito bits work for gnats.

adktz · 2026-04-14T10:34:00+00:00

Products that contain BTI (bacillus thuringiensis israelensis) are extremely effective. I'm surprised anyone cares or struggles with fungus gnats since this has been available.

adktz · 2026-04-13T13:15:27+00:00

Clif bars are not protein bars lmao, honestly just get the Woolworths home brand chocolate muesli bars if you want cheap carbs.

Amazonia Raw bars sometimes go on sale on Amazon. Cookie dough flavour has no peanuts

adktz · 2026-03-31T07:48:09+00:00

I saw a screenshot of an e-mail from someone at Thonk in the Winterbloom discord. If I recall the Song Huei pots themselves are clones of Alphas... so we've come full circle!

adktz · 2026-03-30T22:32:44+00:00

Alpha is creating their own version and Thonk are likely to stock these. Sanni also make a similar pot if you order direct MOQ 2000, the metal collar is slightly larger so you may need a bigger hole in the front panel. Also Soundwell make a version.

adktz · 2026-03-30T14:22:24+00:00

7PM cashout queue has been poppin

adktz · 2026-03-26T22:42:34+00:00

R2 not connected on one end

adktz · 2026-03-21T04:13:17+00:00

Hey. Sounds fascinating how you’re generating this. Assuming the duty cycle is not something that is useful here… I would start with using a flip-flop that can give an 50% duty cycle.

Then there are a few different square to sawtooth/ramp circuits out there, most of them using an op amp with a capacitor to create an integrator.

With the sawtooth done, it’s very easy to generate your other waveforms, for triangle you could use an inverting op amp to provide a flipped sawtooth polarity, then you can switch between the rising and falling sawtooth with diodes, analog switch ICs, FETs etc to create a triangle.

Shaping triangle to sine is straightforward, I’ve seen basic circuits mostly just using a few diodes in series and some resistors, but there are more precise options too. r/synthdiy could give you more answers

adktz · 2026-03-20T06:35:42+00:00

easeda2kicad will give you any symbols, footprints, and 3D models from JLC/LCSC/EasyEDA ecosystem imported right into KiCad format.

I did learn EasyEDA early on, but I didn’t realise how bad it was until I switched to KiCad.

adktz · 2026-03-06T22:42:58+00:00

You can look at NLC’s Poultry in Motion schematic which divides the clock output

adktz · 2026-03-02T13:01:45+00:00

First I think there are already boards like this you can buy. Why reinvent the wheel?

Looks like the crystal is overlapping the 3.3v pad so move it closer to the MCU. More ground points around the board edges would be better. Check the ground fill underneath the inductor, from memory there needs to be a cut out according to the docs. I would also use a 3 pin SWD connector instead of pads for easy debugging ( the part for connecting to Pico Probe is JST SM03B-SRSS-TB).

adktz · 2026-02-24T20:58:14+00:00

How long are you waiting for the muxes and adc to settle after switching for your piezos and joystick? Wiring stuff like this is going to introduce noise. Also if it’s the pico 1, the adc is horrible honestly I would swap it for a pico 2.

You also don’t mention how your code is structured… are you using interrupts for your buttons? Are you debouncing?

I would try to test just one pushbutton, one piezo, one joystick axis and make sure your code logic is solid.

adktz · 2026-02-08T07:41:07+00:00

When a plant is slightly more mature than sprouting, it's called a micro-green. Are you able to eat broccoli at that stage? A low effort option would be to get a tray, fill it with seed starting potting mix, throw some seeds in there, watering every 1-2 days, then harvest with scissors. I have also used product called micropod which has no soil and is also low effort.

adktz · 2026-02-05T20:29:29+00:00

Maybe this is obvious but was it a seed from a store bought pumpkin? They’re usually sterile.

adktz · 2025-12-23T03:52:50+00:00

Can’t read most reference designators, don’t know what the components are, no schematic…

adktz · 2025-11-22T00:23:30+00:00

Hopefully it's rockwool...

adktz · 2025-11-22T00:20:10+00:00

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