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Raspberry Pi 4

raspberrypi.org

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Re: Raspberry Pi 4

#741

Post by joemi »

driverdan wrote: post #521
jimpudar wrote: post #454

I'm so happy they haven't removed the composite video out in the headphone jack! If you didn't know, you just need a 3.5 mm TRRS connector - the pinout[0] looks like: T - Left Channel Audio R - Right Channel Audio R - Ground S - Composite Video Out [0] https://www.raspberrypi-spy.co.uk/2014/07/raspberry-pi-model...

Why? What do you use composite video for? I think the last time I used composite video for anything was 10+ years ago.

I've seen Pi's used in the art world for video installations. It can be quite a bit cheaper (and a different aesthetic) to get a pile of old CRTs than to get HDMI-capable TVs/monitors for such things.

Re: Raspberry Pi 4

#742

Post by bubblethink »

jacquesm wrote: post #740
rtio wrote: post #732

Earlier quoted context omitted.

When you add up adapters and cables the rpi is closing in on a chromebook on sale. So not that cheap any more.

Comparing one item at list with another on sale is a bit of an apples-to-oranges comparison.

It is in that the rasp pi's price doesn't have much slack. So it will never really go on sale whereas most other hardware with a few exceptions has a lot of slack. So it seems fair to compare the projected prices of things.

Re: Raspberry Pi 4

#743

Post by newsoul2019 »

warp wrote: post #738
mbrameld wrote: post #578

Earlier quoted context omitted.

Which CO2 sensor did you go with and how happy are you with it, if you don't mind talking about it?

I'm using a co2meter.com one [1] connected with USB. Reading out the values is a bit slow, but I just do that in a cron job every 5 minutes and log the results. This does exactly what I needed it to do with a minimum of fuss, so I'm happy with it. [1] "CO2Meter RAD-0301 Mini CO2 Monitor" on Amazon, $70

How great would it be if Apple built CO2 and particulate sensors into their products.

Re: Raspberry Pi 4

#744

Post by cheunste »

outworlder wrote: post #729
cheunste wrote: post #709

Earlier quoted context omitted.

So uh...what if I have no interest in home automation or possess a CNC or a 3D printer?

Then perhaps this would interest you: https://pi-hole.net/ You are posting here, so at least internet access you should have :) EDIT: What about a magic mirror? https://forum.magicmirror.builders/

I actually set up a pihole a week ago. Still trying to figure out to how optimize my use out of it as it doesn't block everything (mainly Chinese stuff).

I also considered a magic mirror, but my problem with a magic mirror is that I don't have the tools necessary to build my own frame.

Re: Raspberry Pi 4

#745

Post by ethbro »

ars wrote: post #669
MisterTea wrote: post #404

Earlier quoted context omitted.

There is an official PoE board that fits the pi 3+ which uses a 4 pin header by the ethernet jack to grab power. The pi 4 appears to have the same header. https://www.raspberrypi.org/products/poe-hat/

How is that Hat $20 when the entire board itself is only $35?

Embedded economics. How many million hats are they going to sell?

Re: Raspberry Pi 4

#746

Post by sbov »

fpgaminer wrote: post #546
elliotpage wrote: post #185

Can't wait to buy this, boot it up, play with it for four hours, then stick it in the same desk drawer with the other Pis I have bought over the years. (The upgrades look great, just my attention span is not so great)

That's silly. RasPis are stupidly useful. I've got: * A Zero W hooked up to a PM2.5 to do air quality monitoring in the house. Just bought a couple more sensors for it (VOC, eCO2, etc), but haven't hooked them up yet. * A 3B+ running the UniFi controller for my home network. * One is running a custom Hue automation I built to shift the color temperature of the lights throughout the day. * One is built into an interne…

> * A Zero W hooked up to a PM2.5 to do air quality monitoring in the house. Just bought a couple more sensors for it (VOC, eCO2, etc), but haven't hooked them up yet.

We have neighbors that smoke, and sometimes based upon wind patterns it blows into our yard. Any idea if they have sensors that can pick up this sort of thing so I can close our windows?

Re: Raspberry Pi 4

#747

Post by HeWhoLurksLate »

jackdh wrote: post #139
bscphil wrote: post #117

Earlier quoted context omitted.

I imagine the wait must be agonizing! Why not just have a NFS server on your more powerful computer for the Pi to stream the file from? 100 Mbps is easily enough to stream any Bluray.

Can't speak for OP but I don't want my main PC on all the time if I'm streaming away from home.

Also can't speak for OP:

I can't trust my main computer to be stable for that long, and certainly wouldn't want to rely on it for long-range contact.

Re: Raspberry Pi 4

#748

Post by jacquesm »

bubblethink wrote: post #742
jacquesm wrote: post #740

Earlier quoted context omitted.

Comparing one item at list with another on sale is a bit of an apples-to-oranges comparison.

It is in that the rasp pi's price doesn't have much slack. So it will never really go on sale whereas most other hardware with a few exceptions has a lot of slack. So it seems fair to compare the projected prices of things.

So, one party by default overcharging for their product and the other supplying it at cost makes you feel that when the one party puts their product on sale, a temporary condition at best the product suddenly become equivalent?

Then you should also compare the Chrombooks with second hand large format laptops, old servers on sale with new ones and so on.

Chromebooks 'on sale' are an entirely different class of product than raspberry pi's, they are larger, need wall power, have built in batteries and screens, are in general still more expensive and do not have GPIO.

Re: Raspberry Pi 4

#749

Post by Sohcahtoa82 »

morphle wrote: post #158
hlandau wrote: post #95

Earlier quoted context omitted.

The Raspberry Pi Foundation is a nonprofit.

How are you a non-profit if you pay a salary to you employees and allow your suppliers to make a profit?. They act as a 'low profit' company, but they do make profits.

> How are you a non-profit if you pay a salary to you employees

How does paying your employees suddenly make you for-profit?

Do you know the definition of "profit"?

Re: Raspberry Pi 4

#750

Post by bubblethink »

jacquesm wrote: post #748
bubblethink wrote: post #742

Earlier quoted context omitted.

It is in that the rasp pi's price doesn't have much slack. So it will never really go on sale whereas most other hardware with a few exceptions has a lot of slack. So it seems fair to compare the projected prices of things.

So, one party by default overcharging for their product and the other supplying it at cost makes you feel that when the one party puts their product on sale , a temporary condition at best the product suddenly become equivalent? Then you should also compare the Chrombooks with second hand large format laptops, old servers on sale with new ones and so on. Chromebooks 'on sale' are an entirely different class of produc…

I'm not singling out chromebooks. I'm just saying at $100 price point is crowded with a lot of old and new hardware. So a raspi may not be the best thing for you at that price point.
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