bacon_waffle

Joined 9 years ago

Karma
1,225
Submissions
472
Member since
Dec 14
Electronics/software engineer in Dunedin, New Zealand.

https://github.com/ianrrees

https://ianrees.nz/tech

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Recent submissions

Comment · 26 days ago
I spent a bit over a year at South Pole for IceCube. There's an old joke in the Antarctic: the first time is for the adventure, the second time is for the money, and the third time is because you don't fit in anywhere else anymore.

Anyway, I'd love to do it again

Comment · 2 months ago
Chocolate is a good medium for holograms :)
Comment · 1 year ago
Thanks for the link - PCBWay recently offered me sponsorship, and this video has provided some good inspiration to make use of it :)
Comment · 1 year ago
The additional battery weight would be something under 250kg (having handled a few Leaf battery packs), and wikipedia says the Niro EV is about 1700kg
Comment · 1 year ago
I regularly notice bugs when using iOS Mail; one that springs to mind would display one email's body with the header info from another email, it seems to have recently been fixed but was easily reproducible for weeks if not months.
Comment · 1 year ago
Location: South Island, Aotearoa/New Zealand

Remote: Yes

Willing to relocate: No

Technologies: Rust, electronics, insulation

Résumé/CV: https://ianrees.nz/tech/about.html

Email: code atsign ianrees dot en ze(e|d)

Microchip: please hire me to work on the Rust HAL for your ATSAM chips, which I currently volunteer the odd hour or two to help maintain. Between Rust bringing robust modular software in to embedded, and companies like Adafruit pumping out ATSAM boards, there's huge potential in this space.

https://github.com/atsamd-rs/atsamd

Comment · 1 year ago
Fun historical twist: New Zealand rotary phones used a reversed mapping between digit and pulse count - here the number of pulses was 10-digit.
Comment · 1 year ago
There are techniques for "stack"ing transistors so that the individual swtiching devices see potentials that are within spec and much lower than the voltage switched by the overall circuit.
Comment · 1 year ago
Comment · 2 years ago
Usually the HAL is between the main firmware and the PAC, so whether the PAC methods are marked as unsafe could almost be considered an implementation detail.

But yes, there has been a lot of discussion around how to handle DMA peripherals - the embedded_dma crate offers some abstractions that I've found handy.

Comment · 2 years ago
Whoops, yes you're correct. Serves me right for looking at some SEO spam link!

Main point was that bronze is much more common in marine applications than brass - I wouldn't be surprised to learn there's been an error upstream as well.

Comment · 2 years ago
I believe bronze (copper + zinc) is a lot more common in marine applications than brass (copper + tin)
Comment · 2 years ago
It was a stupid riff on the title. But, the Arkansas River does start in Colorado, and so some amount of Colorado's snowpack does wind up in Arkansas' river.
Comment · 2 years ago
Because it's in the Arkansas River drainage?
Comment · 2 years ago
Ah, that helps, thanks.

It's a bit academic, but set theory doesn't really apply to such fuzzy human things as knowledge and experience. Repairing and designing are different pursuits which might have a lot of similarities, but I wouldn't presume that a design engineer could competently do the work of a technician.

Just consider that any particular field of engineering as might be described by a lay person, can be far too broad and deep for an individual to be competent in all facets of it. I'm reminded of my neighbour asking for some help configuring email for her new iPhone, because she knows I do computer work. Mainly firmware.

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