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sebcat

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sebcat
·vor 3 Monaten·discuss
It's an easy test though and it can be an SMD component and some PUR-coated magnet wire or 30 awg single stranded kynar hookup wire.

Use a small amount of glue from a hot glue gun to fixate it when done, or epoxy if that's your thing. Avoid cyanoacrylate. Not always needed but I imagine a drone moves around alot.

Bodge wiring is a good skill to acquire - PCBs will not always be perfect. Maybe practice on something else first?
sebcat
·vor 2 Jahren·discuss
> Not using MOSFETs would make it faster, in theory.

My understanding is that the MOS 6502 was MOS, so MOSFET. Not using MOSFETs would make it less of a replica.

Implementing the replica in an integrated circuit instead of discrete transistors would lower capacitance.

The delay time is a consequence of the capacitance.
sebcat
·vor 2 Jahren·discuss
I was trying to say that a capacitor and diode (detector) is not a complete receiver.
sebcat
·vor 2 Jahren·discuss
Under what circumstances is a diode and a capacitor enough to make a radio receiver?
sebcat
·vor 2 Jahren·discuss
Doesn't the RP2040 require external qspi flash? What does that cost?

MCP2200 is ~$2.50 in single units and you don't have to deal with firmware or programming.
sebcat
·vor 3 Jahren·discuss
Assuming AI is at the level of average
sebcat
·vor 3 Jahren·discuss
PUR-coated copper wire, .15mm diameter is pretty good. .1mm when needed. Use flux, good lightning and some (~10x) magnification.
sebcat
·vor 3 Jahren·discuss
Monarda is many plants. Any one of them in particular?

Will I get the same effect drinking Earl Grey tea?
sebcat
·vor 3 Jahren·discuss
VK2 is New South Wales, not sure what the seismic activity is there but they do appear to get earthquakes according to Wikipedia.
sebcat
·vor 3 Jahren·discuss
Still used a bunch of CRIS cores for ARTPEC-6 for scheduling scaler and trfm jobs and some other things, are they completely gone now?
sebcat
·vor 3 Jahren·discuss
2200 meter is LF (30-300kHz). Used mainly with huge coils and low power (1W EIRP). then there's VLF (3-30kHz). Then there's ULF (300Hz-3kHz) Then there's ELF (below 300 Hz), used by the stations in question. To put things into perspective.

Speaking of VLF, SAQ will broadcast on 17.2 kHz on July 2nd. You can pick it up with a soundcard directly (not using a DVB-T chip) depending on your location and use of antenna.
sebcat
·vor 3 Jahren·discuss
See https://github.com/F5OEO/rpitx
sebcat
·vor 3 Jahren·discuss
You need crop rotation for beans at least. To lower the risk of parasites and deceased.
sebcat
·vor 3 Jahren·discuss
My experience is that it's hard to get right, messes with crop rotation and lower yield.

I've had beans overtaking the maize and I've had squash overtaking the beans.

YMMV.
sebcat
·vor 3 Jahren·discuss
If you're into electronics, having a couple of MCP2200 in your drawer is also handy. Gives you some GPIOs as well.
sebcat
·vor 3 Jahren·discuss
> you will not kill someone if you ride after a night drinking

You might however end up at the hospital doing that, or worse.
sebcat
·vor 3 Jahren·discuss
Does intervention lead to worse outcomes more often than not?
sebcat
·vor 3 Jahren·discuss
Surely there are worse cases for a sub than this?
sebcat
·vor 7 Jahren·discuss
Data Flow Diagrams as described in "Structured Analysis and System Specification" (Tom DeMarco) are lightweight and provides a common way to describe a system with a focus on the flow of data.

The book also goes into detail on how to apply it. e.g., the value of having simple diagrams and have separate diagrams to break down the more complex processes in detail.

It's not rocket science, but I have found it helpful in the past to communicate ideas or existing designs.
sebcat
·vor 7 Jahren·discuss
What if the OS could map a shared object that resides in one section of memory into the virtual address space of multiple processes?