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by pfletch101
Mon Sep 16, 2019 9:29 pm
Forum: General discussion
Topic: GPIO access with Pi 4 Flirc Case
Replies: 8
Views: 298

Re: GPIO access with Pi 4 Flirc Case

can take a look at Argon Forty Neo Case. It is a aluminium case with a slide top cover that gives you access to the GPIO. https://www.argon40.com/argon1/argon-neo-raspberry-pi-4-case.html Do you have any data on heat handling with that case? It does not appear to have the pillar that (in the Flirc ...
by pfletch101
Sun Sep 15, 2019 2:12 pm
Forum: General discussion
Topic: GPIO access with Pi 4 Flirc Case
Replies: 8
Views: 298

Re: GPIO access with Pi 4 Flirc Case

See https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=248516 . The bottom line is that provided you get and use a cable with narrow connectors referred to in that thread and in the Flirc case FAQ, there is no significant problem. Obviously, you have to connect the cable before you assemble the...
by pfletch101
Thu Sep 12, 2019 4:29 pm
Forum: Troubleshooting
Topic: Using a light sensor: Problems reading light/dark (output only prints out zeroes)
Replies: 2
Views: 51

Re: Using a light sensor: Problems reading light/dark (output only prints out zeroes)

The default settings for the timeout within the LightSensor code may not be long enough for your environment (they seem to assume either a very well illuminated environment or a very sensitive sensor). Try playing with the optional charge_time_limit argument. I got good results in a normal home envi...
by pfletch101
Wed Sep 11, 2019 9:54 pm
Forum: General discussion
Topic: 12v battery + 25 watt Solar = always powered 4B?
Replies: 17
Views: 519

Re: 12v battery + 25 watt Solar = always powered 4B?

The biggest problem is that you are unlikely to get a full 25W from your solar panel unless you live in a very sunny climate. From my own experience in the UK with solar panels on my house I rarely average more than 60% of there total output in the summer and considerably less in the winter. Are yo...
by pfletch101
Tue Sep 10, 2019 4:04 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 529
Views: 132217

Re: Raspberry Pi 4 temperature

bensimmo wrote:
Tue Sep 10, 2019 3:54 pm

it would be really nice if there was a Pi4 Lite.
sort of cool and usable with HATs and out of the case.
the processing power can be lower, as long as it can still run the usual stuff. just without the heat.
Isn't that called a 3B(+)? :)
by pfletch101
Tue Sep 10, 2019 12:36 am
Forum: Troubleshooting
Topic: Please Help... Accidentally renamed a file in /lib/ Raspbian Buster
Replies: 5
Views: 143

Re: Please Help... Accidentally renamed a file in /lib/ Raspbian Buster

Unless you have also been messing with my /lib folder :) , the strange name is correct. I have a file with precisely the same name. Why do you think that you renamed it?
by pfletch101
Sat Sep 07, 2019 10:29 pm
Forum: Networking and servers
Topic: Make RPi show in Network List in Windows 8 or 10
Replies: 9
Views: 392

Re: Make RPi show in Network List in Windows 8 or 10

Hopefully just something stupid I have done. I just want to see my RPi (3+B) in the list of computers when I look at the network display of devices in Windows 8 or 10. I can ping the RPi with the DHCP assigned IP(4) address. I can see the Shared Folder contents on the RPi using Samba. But I can not...
by pfletch101
Fri Sep 06, 2019 10:43 pm
Forum: Troubleshooting
Topic: VLI firmware v2.0 - powersaving features enabled
Replies: 55
Views: 3550

Re: VLI firmware v2.0 - powersaving features enabled

@jcyr: your issue with sudo reboot does seem to be specific to your setup. On my Pi4, running from an SD Card, there is no problem rebooting after the update, and I assume that the other positive responders in this thread also had no problems.
by pfletch101
Thu Sep 05, 2019 2:31 pm
Forum: Automation, sensing and robotics
Topic: Using ouimeaux with Python 3 on Buster
Replies: 1
Views: 73

Re: Using ouimeaux with Python 3 on Buster

More searching found pywemo (https://github.com/pavoni/pywemo), which provides the facilities that I need under Python 3 in a usable form, though you have to do some spelunking in the code to work out how to use it.
by pfletch101
Wed Sep 04, 2019 6:57 pm
Forum: Automation, sensing and robotics
Topic: Using ouimeaux with Python 3 on Buster
Replies: 1
Views: 73

Using ouimeaux with Python 3 on Buster

Has anyone any useful experience with running the ouimeaux application (which provides a Python interface to WeMo devices) under Python 3.x? If I use pip to install it to run with Python 2, everything seems to work as documented, both for the standalone CLI 'wemo' application and when you import the...
by pfletch101
Tue Sep 03, 2019 5:52 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 529
Views: 132217

Re: Raspberry Pi 4 temperature

Pads are sticky and can be used to secure a heatsink to a device. I doubt a pad would stick if one (or both) surfaces had paste applied but I've not got any pads here to waste trying it out. PeterO Don't generalize from limited experience! Pads may be sticky and act as an adhesive connection betwee...
by pfletch101
Tue Sep 03, 2019 3:46 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 529
Views: 132217

Re: Raspberry Pi 4 temperature

Would be nice to see if you could use the stock thermal pads in combination with thermal paste, to see if that improves the heat transfer? Do you understand the purpose of thermal paste ? The primary purpose of thermal paste is to fill in small irregularities in two imperfectly mating surfaces so t...
by pfletch101
Mon Sep 02, 2019 10:01 pm
Forum: General discussion
Topic: RPi 4 UPS choice.
Replies: 1
Views: 175

Re: RPi 4 UPS choice.

I am working on a raspberry pi 4 free NAS server, and I thought just for extra safety I should install a UPS, I found a UPS on aliexpress, but I'm not sure if it wil work (or not break) the RPi. Here's what I found: https://tr.aliexpress.com/item/32919869618.html?trace=wwwdetail2mobilesitedetail&mb...
by pfletch101
Mon Sep 02, 2019 9:36 pm
Forum: Advanced users
Topic: Access to GPIO connector in a Flirc Case
Replies: 14
Views: 1725

Re: Access to GPIO connector in a Flirc Case

There's a FAQ on the Flirc RPi 4 case page where question 9 specifically adresses the gpio ribbon cable issue: I'm having trouble fitting a standard IO Cable for the Connectors, do you have a recommendation? Yes, this one works perfectly fine: https://octopart.com/search?q=IDSD-20-D-06.00 I haven't...
by pfletch101
Mon Sep 02, 2019 9:32 pm
Forum: General discussion
Topic: Are there any methods to cool a Raspberry Pi 3B?
Replies: 8
Views: 362

Re: Are there any methods to cool a Raspberry Pi 3B?

The Flirc Gen2 is made specifically for the Pi 3B and 3B+ models, and it has an internal post to transfer heat away from the SoC. It has 2 thermal interface pads, a thin one for the 3B+ model (and newer 3B with 2837 B0 SoC), and a thicker one for the older 3B. There is a slot on the bottom of the F...
by pfletch101
Fri Aug 30, 2019 10:32 pm
Forum: Device Tree
Topic: raspberry pi 4 gpio uart (ttyS0) not working like 3B+
Replies: 6
Views: 2387

Re: raspberry pi 4 gpio uart (ttyS0) not working like 3B+

It is now nearly September, and my 4B has been regularly updated/upgraded since I got it, earlier this month, but I am also seeing problems with serial transmission with a small beta HAT that uses UART0 and works perfectly on a 3. I don't have an oscilloscope or another serial terminal I can test it...
by pfletch101
Sun Aug 25, 2019 8:49 pm
Forum: General discussion
Topic: power supply raspberry pi 3 b+
Replies: 12
Views: 398

Re: power supply raspberry pi 3 b+

But then...I tend to nitpick the very common but badly used technical terms. To take one that shouldn't be a problem here, there is no such aircraft as an "Me-109". There was a "Bf-109" and an "Me-262", but no "Me-109" in spite of the Bf-109 having been designed by Willy Messerschmidt. My favorite ...
by pfletch101
Fri Aug 23, 2019 8:43 pm
Forum: Troubleshooting
Topic: Pi 4 Headless?
Replies: 10
Views: 454

Re: Pi 4 Headless?

See Andyroo's answer when I asked the same question ( https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=246667#p1506293 ). The added requirement for headless setup in Buster is that the default screen size has to be set for (at least) VNC to work. Both OS versions will autodetect most HDMI mon...
by pfletch101
Fri Aug 23, 2019 8:25 pm
Forum: General discussion
Topic: WiringPi Download (not for Raspbian)
Replies: 26
Views: 1031

Re: WiringPi Download (not for Raspbian)

Who actually reads documentation? I generally do that only once I discover my initial assumptions were false! ;) I always read through the entire documentation of a hardware device or software package once. I then generally reread the section(s) on whatever I actually plan to use. I find that enoug...
by pfletch101
Tue Aug 20, 2019 9:23 pm
Forum: General discussion
Topic: Getting sound when using VNC viewer on RPi4
Replies: 11
Views: 323

Re: Getting sound when using VNC viewer on RPi4

No, it is used on Windows, but I want to verify its functionality also on Linux. Therefore I have installed the dev stuff on the RPi4 and will transfer thw sources via SVN to it and then build and test the project there. Audio controls are part of the editor too. But it is not a full video editor, ...
by pfletch101
Fri Aug 16, 2019 1:05 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 529
Views: 132217

Re: Raspberry Pi 4 temperature

I'd say it was a regular case. Just a very well designed one. Looking at the one I have here, the LCD cable and camera cables have exits, and there is an available slot to get a GPIO ribbon cable out should you so wish. Indeed, there is a slot provided for a GPIO ribbon cable, but do you know of a ...
by pfletch101
Fri Aug 16, 2019 12:46 am
Forum: General discussion
Topic: Fan failure?
Replies: 15
Views: 724

Re: Fan failure?

You might want to just look into a Flirc case ($20 with shipping). The top half is all aluminium and acts as a big heat sink(no fan and none needed). For anything pre Pi4 they are more than enough case to keep it cool. For the Pi4 they are right on the edge, for moderate use they are fine. I endors...
by pfletch101
Thu Aug 15, 2019 3:15 am
Forum: Advanced users
Topic: Access to GPIO connector in a Flirc Case
Replies: 14
Views: 1725

Re: Access to GPIO connector in a Flirc Case

What about something like this https://www.mouser.com/ProductDetail/TE-Connectivity-AMP/3-87456-5?qs=sGAEpiMZZMs%252BGHln7q6pm7F1NlCFAzwfeva7z7Ehuec%3D Found by googling "2x20 2.54 female" You'd have to attach your own wires, but the connection itself is very slim. That looks like a ganged connecto...
by pfletch101
Wed Aug 14, 2019 7:48 pm
Forum: Advanced users
Topic: Access to GPIO connector in a Flirc Case
Replies: 14
Views: 1725

Re: Access to GPIO connector in a Flirc Case

There's a FAQ on the Flirc RPi 4 case page where question 9 specifically adresses the gpio ribbon cable issue: I'm having trouble fitting a standard IO Cable for the Connectors, do you have a recommendation? Yes, this one works perfectly fine: https://octopart.com/search?q=IDSD-20-D-06.00 I haven't...
by pfletch101
Tue Aug 13, 2019 5:46 pm
Forum: Troubleshooting
Topic: Pi 4 hangs on boot when 2 displays connected
Replies: 10
Views: 288

Re: Pi 4 hangs on boot when 2 displays connected

So to cut a long story short, if your Pi 4 hangs on boot when 2 displays are connected, try a different micro SD card. The cards are different brands, the cheaper of the two is the one that allows the dual displays to work. It seems highly improbable (but not impossible, I grant) that the make or s...

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