Re: Grounded grid VHF front-end

On a sunny day (Sun, 10 Nov 2024 17:39:36 +0000) it happened Cursitor Doom
<cd@notformail.com> wrote in <qpr1jj9glcibtukfkhsgt3m0ujq0kkho0l@4ax.com>:

On Sun, 10 Nov 2024 14:33:41 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
>

On a sunny day (Sun, 10 Nov 2024 13:38:31 +0000) it happened Cursitor Doom
<cd@notformail.com> wrote in <eld1jjl15hq8ohgm3kifpodkktupt1lr3g@4ax.com>:
>

On Sun, 10 Nov 2024 11:19:14 GMT, Jan Panteltje <alien@comet.invalid>
wrote:

...

We had nice electronic magazines too, 'Radio Electronica', 'Electuur' (Elector?)
and whatever I could get hands on in English.

>
Elektor was one of the better hobby ones. I was also subscribed to
Wireless World which was a bit more heavy-duty.

>
Yes I used to read that on occasion (if I did see it at the newsstand at the staion for example)
plus some German electronic related magazines,
>
>

No idea if any of
these are still being published and can't be bothered to find out.
There was also Everyday Electronics and Practical Electronics, too.
I'm guessing they've all gone now since the kids just want to code it
seems.

>
Na, there is still a lot around on hardware design / building stuff, several websites.
Just google works great too.
>
Electronics is used in a very wide field...
Just got a new alu housing with fan for my raspi 4 8 GB (this one I use to post this)
It has an IR camera connected too (mlx90640_FLIR),
now to find a way to get the i2c and power lines to that IR camera module
out of that housing...
>
What bothers me today (thought maybe use an extra Raspberry Pi) is that prices
are going up to insane lavels for a Raspi5 8 Gb + supply + housing + sdcard to above 120 USD:
https://www.sossolutions.nl/raspberry-pi-5-8gb-starter-kit-compleet
>
For just a bit more you have a decent mini computer:
https://www.aliexpress.com/w/wholesale-mini-pc-x86.html
>
Inflation?
Time to end raspi stuff and look for other solutions.
 

>
Arduinos are very cheap and don't have all the overhead the Pi has in
terms of video capabilities. Plus they're piss-easy to program.
A Pi 5 plus accessories for 120 bux doesn't sound bad at all, though.
Or if you're really that much of a skinflint, you could consider PIC
programming. :-)

I use this Pi 4 8 GB for web browsing, posting stuff here, spectrum analyzer, radio reception , music play, so much more
An arduno is something totally different.
But this 4 8GB is dead slow at times browsing the web.
Added a metal case with fan now to prevent it from throtling on over-temperature
so now its hovers around
temp=40.9'C
temp=41.3'C
temp=40.4'
..
Just cut and paste

Has a 4 TB Toshiba harddisc connected to it, some RTL-SDR stick, A huawei 4G stick so I have internet on it,
a HDMI monitor, and for all the other USB stuff a Sitecom USB hub, a Logitech wireless keyboard... and that IR FLIR camera on GPIO.

raspberrypi: ~ # df
Filesystem      1K-blocks       Used Available Use% Mounted on
/dev/root        30421240   27643352   1432704  96% /
devtmpfs          3879380          0   3879380   0% /dev
tmpfs             4044244          0   4044244   0% /dev/shm
tmpfs             1617700       1336   1616364   1% /run
tmpfs                5120          4      5116   1% /run/lock
/dev/mmcblk0p1     258095      50413    207682  20% /boot
tmpfs              808848         24    808824   1% /run/user/1000
/dev/sda2      3844420600 2863079020 785980916  79% /mnt/sda2

raspberrypi: ~ # top
top - 07:27:40 up 1 day, 22:12, 11 users,  load average: 0.64, 0.66, 0.97
Tasks: 221 total,   1 running, 220 sleeping,   0 stopped,   0 zombie
%Cpu(s):  4.8 us,  4.3 sy,  0.0 ni, 90.8 id,  0.1 wa,  0.0 hi,  0.1 si,  0.0 st
MiB Mem :   7898.9 total,   6529.0 free,    727.2 used,    642.7 buff/cache
MiB Swap:    100.0 total,    100.0 free,      0.0 used.   6853.9 avail Mem
  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                                                                                                                                                
 1105 root      19  -1  195056  77668  56360 S  10.2   1.0 195:49.13 Xorg                                                                                                                                                                                                   
12594 root      20   0  980792 351696 161036 S   6.6   4.3   7:45.00 firefox-esr                                                                                                                                                                                            
12782 root      20   0  496732 164380  94644 S   3.9   2.0   2:14.18 Web Content                                                                                                                                                                                            
 1123 root      20   0   48028  12892   8604 S   1.6   0.2   0:01.86 rxvt                                                                                                                                                                                                   
 1219 root      20   0    6644   4208   3832 S   1.6   0.1  37:20.43 xosview                                                                                                                                                                                                
12732 root      20   0  640868 135868  81320 S   1.3   1.7   1:02.58 WebExtensions                                                                                                                                                                                          
....


As to PIC programming, how about a simple oscilloscope with FFT option:
 https://panteltje.nl/panteltje/pic/scope_pic/
from
  https://panteltje.nl/panteltje/pic/index.html
Or controlling a drone:
 https://panteltje.nl/panteltje/quadcopter/index.html
From:
 https://panteltje.nl/panteltje/newsflex/download.html

and now show us somthing YOU designed, code YOU wrote, THAT WORKS!
And stop meddling here as if you are a censor, Billy blacklisting game with J Lurking
This is a non-moderated group, bring in some more content than boat anchors and show us!

!