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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

#121

Post by hshshs2 »

gregmac wrote: post #43
denimnerd42 wrote: post #36

Earlier quoted context omitted.

they don't go to bed? I work in my garage workshop from bedtime to midnight or one a few times a week. I've turned out way more finished projects than I ever did before the pandemic.

That's the second part of my work day. The first part is between breakfast and lunch. During lockdown (like we're about to go into again) my afternoon becomes my other, new, exhausting job of being a crappy early grade teacher while my partner works her normal job. Evening we all have dinner together, then alternate who does bath/bedtime vs dishes/laundry/garbage/etc, before going back to "day" job and finally sleep.

This is exactly my experience... I’ve been in lockdown the whole time though. I started working out just so I have the stamina for it (it has helped, but finding 20 minutes for it can be hard).

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

#122

Post by seba_dos1 »

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.

> Seems like not much in between.

Why? No kids there, but why would I be bored? I have plenty of things to do, as always. Having worked from home for years now, I don't really see that big difference in regular day other than the fact that socializing and conferences have moved online.

If anything, I imagine that it would be painfully lonely if I had to live alone during the lockdown. Thankfully, I live with my girlfriend. But why would it be boring? Lockdown or not, it doesn't make much difference.

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

#123

Post by ISL »

chris_st wrote: post #92
roel_v wrote: post #58

Earlier quoted context omitted.

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?

As long as the microcontroller has a sleep mode, you can use a relay (for-real or solid-state) to toggle the power for the display.

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

#124

Post by lostlogin »

samstave wrote: post #73
lostlogin wrote: post #65

Earlier quoted context omitted.

You can probably do this off an esp32 without too much trouble.

Please educate me on where I should go for esp32?

I went to a local electronics store and got one. I then looked on AliExpress and found them for a fraction of the price.

I mainly use ESP8266, as it’s cheaper but it’s less powerful and doesn’t have 5v output, just 3.3v (or at least the ones I have were like this). I don’t have any real coding skill but between the Arduino IDE, ESPHome, MQTT and some mucking about, I got where I wanted to be.

The sensors are so inexpensive and there are so many (light, temperature, fire, smoke, moisture, humidity, distance, gasses, weight, open/close, current etc). It’s really impressive what is out there.

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

#125

Post by nkingsy »

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.

2 kids, 2 and 4.

My wife and I both try to give the other time for themselves. She goes hiking most days and I’ve built up 3 custom bicycles over 2020 and ride them on local trails at night after the kids are asleep. Bike lights have been my best investment this year.

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

#126

Post by franky47 »

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.

My first child was born a month ago mid-lockdown, so I have experienced both sides. I concur.

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

#127

Post by lazyjones »

rualca wrote: post #99
lazyjones wrote: post #96

Earlier quoted context omitted.

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.

Using glue on small PCBs doesn't seem very sensible to me. I guess it's asking for too much to sell some lego bricks with simple ways of attaching a PCB?

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

#128

Post by mojoe »

pbronez wrote: post #113
BigJ1211 wrote: post #85

Earlier quoted context omitted.

You need to do that 7 days a week? Did you do that before the pandemic as well? I assume you'd go out and meet some people? Sports? Other out-of-house activities, that's all time you can use as "you" time now.

HN comment Two small kids here, I’ll try to explain my experience. First off, there was very little time for socializing before the pandemic. One evening a week to grab dinner with a friend was the gold standard and achieved at the cost of putting more childcare on my partner. My partner also got an evening a week for friends, so I’d have extra kid duty that day. The pandemic has made life harder for me and my family…

I feel you. I have a newborn and a two-year-old. It can be frustrating not being able to get into the flow, but I'm just trying to enjoy this time with the kids knowing that they're growing fast.

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

#129

Post by sgroppino »

samstave wrote: post #17
sgroppino wrote: post #5

Earlier quoted context omitted.

Originally I was just using it to display the IP addresses after reboot on a smaller 0.96" 80x160. Then a screen shot... then zoom. I'm thinking more about some QR code with basic sysinfo.

QR for status or info on anything is the winner here... can you array these off a single PI? Imagine this: An installation where there is an array of these screens - they are associated with whatever you want info on - they cycle btwn a screenshot of the item, some basic text (like IP/UPC/Barcode/QR to a fully detailed product/item page, uptime/health status...) etc... And you can just have a PI running a bunch of th…

This is a good question. You should be able to control multiple SPI devices at the same time, but that requires the CSX/CS ("Chip Select") pin to be present. The model I bought doesn't seem to have this feature, but someone found a hack [1]. I will add this info to the readme as you're really better off buying displays with CS if you're planning to control multiple tiny screens. [1] https://www.instructables.com/Adding-CS-Pin-to-13-LCD/

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

#130

Post by rualca »

lazyjones wrote: post #127
rualca wrote: post #99

Earlier quoted context omitted.

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.

Using glue on small PCBs doesn't seem very sensible to me. I guess it's asking for too much to sell some lego bricks with simple ways of attaching a PCB?

> Using glue on small PCBs doesn't seem very sensible to me.

Then why are you basing your argument on an approach which you already believe isn't sensible?

I mean, you can glue everything you wish on a lego piece, including all the M3 spacers you need.

But hey, why settle with an easy solution when you can bicker endlessly about problems that you don't need to handle?

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