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Show HN: Raspberry Pi 400 with a $2 IPS 240x240 micro display

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Re: Show HN: Raspberry Pi 400 with a $2 IPS 240x240 micro display

#91

Post by barnabee »

condomhacker wrote: post #34

I want to make a smart glass like device with a tiny display or a projector, Raspberry Pi Zero as the main board and powered by a battery pack. Does any one have any input regarding optics? Just thinking about the possibility of having a linux machine always on you seems really exciing.

Seconded!

The Vufine+ [1] is about the best option I’ve found so far. It works and is a standard HDMI display but it’s really small in your vision (so need v large font sizes), has quite a lot kind of obstructive stuff from the casing etc. in your field of view, and feels bulkier than it needs to be.

I’d be happy with much lower resolution like these displays specially if it appeared larger and clearer. I actually bought a transparent OLED thing [2] recently with the intent of trying to hack it into something wearable but no progress on that yet and not sure if it’ll actually even be readable.

[1] https://store.vufine.com/

[2] https://a.aliexpress.com/_BSV8F6

Re: Show HN: Raspberry Pi 400 with a $2 IPS 240x240 micro display

#92

Post by chris_st »

roel_v wrote: post #58
ISL wrote: post #2

There's a lotta cool/interesting applications for a tiny display like that. Thanks for sharing. :).

I ordered a few by accident from AliExpress and they showed up yesterday. I don't know for the life of me what to do with them. I was thinking maybe as a temperature/humidity monitor thing, but it would have to be mains powered because I don't think there's a way to make a device like this diy'able (with arduino and dht22 level components) and make it run off a battery for more than a few months. So any suggestions a…

Look into the low-power mode of whatever microcontroller you're using... I did an AT-Tiny85 project, and it burned through the battery. I then switched to low power for a while, and it draws micro-amps (!) when in low-power mode, so the battery would have lasted hundreds of times longer.

Oh... umm... the display, yeah. Maybe have an on-button for the display to power it up only when you want it?

Re: Show HN: Raspberry Pi 400 with a $2 IPS 240x240 micro display

#93

Post by scotty79 »

godot wrote: post #35

A bit off-topic but related to the intro in this readme.. > Why? > I'm super bored in lockdown. Add a Raspberry Pi 400 and a few tiny displays... I feel like there are two distinct kinds of lockdown experience. One, you have kids, and you have absolutely no free time because now your kids are home and you're working from home. Two, you don't have kids, and you're super bored every day. Seems like not much in between.

I have no kids, live alone and am absolutely fine. Just playing games, reading internet, watching youtube, chatting and occasionally doing something else that happens to interest me at the moment.

Not sure how it would be different without pandemic? Maybe I'd spend few percent of my time outside and/or interacting with people in person, but probably no more.

I'm one of those people who found out that their preferred lifestyle is called quarantine.

Re: Show HN: Raspberry Pi 400 with a $2 IPS 240x240 micro display

#94

Post by scotty79 »

TeMPOraL wrote: post #56
hobofan wrote: post #55

Earlier quoted context omitted.

N=1, but childcare has been the biggest avenue of infections I've seen here in Germany. Basically every childcare of colleagues with children has been shut down at one point in October/November (when the numbers started rising here) due to infections among the children. In most cases one or multiple of the families have been completely infected as a result of that, and I guess the only reason it hasn't spread around…

It's the reason we aren't sending our kid to daycare, despite the private facilities here in Poland staying open for a large part of this pandemic.

I have exacty the same suspicion. Cases started spiking exactly 3 weeks after we opened schools after summer break in Poland, and did not start falling down until we closed down schools again.

Re: Show HN: Raspberry Pi 400 with a $2 IPS 240x240 micro display

#95

Post by scotty79 »

TedDoesntTalk wrote: post #3
ISL wrote: post #2

There's a lotta cool/interesting applications for a tiny display like that. Thanks for sharing. :).

Other than watch-like functions, can you give me some ideas?

Not sure why but the first thing that came to my mind was making HamsterTV set for your hamster.

I don't even own a hamster currently and haven't owned one in few decades.

I think I'm watching way too much random youtube makers.

Re: Show HN: Raspberry Pi 400 with a $2 IPS 240x240 micro display

#96

Post by lazyjones »

rualca wrote: post #87
lazyjones wrote: post #84

Earlier quoted context omitted.

They're not very flexible though, I can't just take any accessories like the display in the article and attach it properly with a few extra blocks.

> They're not very flexible though, I can't just take any accessories like the display in the article and attach it properly with a few extra blocks. Well, you can. You just need to attach the accessory to a lego piece that suits your fancy, and you're done. https://www.lego.com/en-us/page/static/pick-a-brick

By "attach" you mean glue?

Re: Show HN: Raspberry Pi 400 with a $2 IPS 240x240 micro display

#98

Post by drieddust »

godot wrote: post #35

A bit off-topic but related to the intro in this readme.. > Why? > I'm super bored in lockdown. Add a Raspberry Pi 400 and a few tiny displays... I feel like there are two distinct kinds of lockdown experience. One, you have kids, and you have absolutely no free time because now your kids are home and you're working from home. Two, you don't have kids, and you're super bored every day. Seems like not much in between.

You bet :) At the beginning of this lockdown I was excited about how great it will be to dedicate commute time to hobbies.

With kids at home only time I get is @ 1 AM.

Re: Show HN: Raspberry Pi 400 with a $2 IPS 240x240 micro display

#99

Post by rualca »

lazyjones wrote: post #96
rualca wrote: post #87

Earlier quoted context omitted.

> They're not very flexible though, I can't just take any accessories like the display in the article and attach it properly with a few extra blocks. Well, you can. You just need to attach the accessory to a lego piece that suits your fancy, and you're done. https://www.lego.com/en-us/page/static/pick-a-brick

By "attach" you mean glue?

It really depends on your goals and needs.

Still, in a world where 3D printing is sold as a happy path solution to everything, putting glue on a couple of COTS plastic pieces sold for about $0.10 seems like an absolute no-brainer.

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