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My toddler loves planes, so I built her a radar

jacobbartlett.substack.com

251–257 of 257 posts

Re: My toddler loves planes, so I built her a radar

#251

Nice work and nice writeup. It's interesting to me how strongly the design of original radar displays anchors the project. Your toddler might never interact with a real CRT, much less an ASR-9 with a PPI display. But you've gone to great lengths to simulate one for her. Partly because of your affinity for skeumorphism, as you said, but it may also be because the OG radar display is a fantastic distillation of "Is the…

I like your comment — it points out that our RADAR displays were a both a product of the technology that was used to generate them (the sweep) but also that it was a deliberate way to make clear what it was you were observing (target distance was represented by distance from center, target bearing by angle around the circle). To your point though, perhaps emulating the sweep was the questionable design decision — the…

This is a great point - it’d be easy to de-anchor the sweep from turning but it’d be enormously complex to re-write the logic for the planes to make them fade in their own time (using the angular gradient to accomplish both the sweep and the fade was probably the best shortcut of the whole project!)

Re: My toddler loves planes, so I built her a radar

#252

I like the idea that changing the display color was a must-have feature for the initial release. Shows a very solid understanding of the target demographic's user needs. (My 3yo loves any toy that includes a color picker!)

One of the most underrated SwiftUI components

Even if I show her today the first thing she cares about doing is picking a colour (which is great for fine motor skills!)

Re: My toddler loves planes, so I built her a radar

#253

Advice for a wholesome activity with your daughter: Bring her to the closest road/parking lot/park at the inbound end of your closest international airport runway (Typically this changes based on wind direction). Park and watch the planes come in and land. She can use her "radar" to see which planes are coming in (we used flightradar24). My kids were FLOORED how close the planes get to the ground on approach - especi…

In the author's case, I think that will be London City Airport (LCY), which has an extremely steep approach. > Only multi-engine, fixed-wing aircraft up to Airbus A318 size with special aircraft and aircrew certification to fly 5.5° approaches are allowed to conduct operations at London City Airport. https://www.youtube.com/watch?v=yZIDFgpT0-o https://en.wikipedia.org/wiki/London_City_Airport

Looks like you can get some interesting views from either end of the airport via either bridge, and with these steep approaches and takeoffs it looks like it makes for some great planespotting - mostly smaller E190/A220's though.

https://www.youtube.com/watch?v=Gh3lZAPluUM

Re: My toddler loves planes, so I built her a radar

#254

Advice for a wholesome activity with your daughter: Bring her to the closest road/parking lot/park at the inbound end of your closest international airport runway (Typically this changes based on wind direction). Park and watch the planes come in and land. She can use her "radar" to see which planes are coming in (we used flightradar24). My kids were FLOORED how close the planes get to the ground on approach - especi…

That's a great shout, I'll see about getting the DLR near to London City this weekend!

https://www.youtube.com/watch?v=Gh3lZAPluUM

Looks like smaller jets (E190's mostly) due to the very steep approach on both ends, but the views look pretty good and there's decent traffic there.

Re: My toddler loves planes, so I built her a radar

#256

Nice work and nice writeup. It's interesting to me how strongly the design of original radar displays anchors the project. Your toddler might never interact with a real CRT, much less an ASR-9 with a PPI display. But you've gone to great lengths to simulate one for her. Partly because of your affinity for skeumorphism, as you said, but it may also be because the OG radar display is a fantastic distillation of "Is the…

> Is there something in the sky and where is it relative to me?

One service that continues to capture this really well is the AR mode of FlightRadar24. I understand all of the individual bits of technology involved just fine (and run my own ADSB station!) but there's something about pointing a camera at the sky and seeing metadata of all the planes in view that still amazes me.

Re: My toddler loves planes, so I built her a radar

#257

Earlier quoted context omitted.

Same. Cool project but way less interesting.

Apologies, I hope the title didn't go to far on the clickbaity side

Not at all. It was still a really cool writeup. Worth the read but just wanted to see an electronics project.
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