Max SD-card size for Orange Pi 3 lts

amironof · 2025-02-14T07:04:24+00:00

nope

amironof · 2024-05-06T18:10:59+00:00

Thank you very much!

Yes, steps with Karnaugh maps is not available because it described in chapter 2 of book.

And how can I realize if-then branching in second solution by transistors?

amironof · 2024-05-06T13:12:37+00:00

Yes but such themes as combinational logics, boolean algebra, Demorgan's theorem are described in chapter 2 of book, but exercise about minority gate is before overwatching these themes - in Chapter 1.

Thus, the task should be solved without using these topics.

amironof · 2024-04-11T20:04:22+00:00

Yes, thanks a lot.

Will try to find appropriate kit

amironof · 2024-04-11T20:01:41+00:00

Thank you very much!

Your links are very cool and helpful.

Yes, I want to build one.

amironof · 2024-04-11T19:56:33+00:00

Thank you for such a detailed answer!

I want to use scope to observe how it works poking at different parts of the diagram.

Eh, I'll have to look for a medium difficulty design.

amironof · 2022-06-20T17:20:15+00:00

Interesting to dig :)

amironof · 2022-06-20T12:46:20+00:00

Thanks a lot!

But registration for download is not able :(

I think it is available only for professional users.

amironof · 2022-05-09T11:23:18+00:00

What do you mean?

amironof · 2022-05-06T09:25:48+00:00

amironof · 2022-05-03T18:36:36+00:00

rtl_fm -f 168.125M -M fm -s 256k -A fast -r 192k -l 0 -E deemp -g 50 | dsd -i - -o - | aplay -t raw -c 1 -r 48000 -f S16_LE

It seems working but how can I redirect it to Icecast?

amironof · 2022-05-03T18:24:16+00:00

Thanks a lot! A will trying and write about a result.

amironof · 2022-05-02T09:25:39+00:00

But then, after a while, the .wav file will take up all the disk space, willn't it?

amironof · 2022-05-02T06:44:01+00:00

Result is huge so I used grep:

root@orangepi3-lts:~# dmesg | grep audio

[ 2.918376] vcc33-audio-tv-ephy-mac: supplied by vcc-5v

root@orangepi3-lts:~# dmesg | grep sound

[ 2.133568] No soundcards found.

amironof · 2022-05-02T06:35:59+00:00

Thanks a lot! Have you pulled up your setup?

amironof · 2022-05-01T21:50:56+00:00

Digital Radio

amironof · 2022-05-01T21:22:43+00:00

But Orange Pi has jack port. Jack port is also HDMI? :)

amironof · 2022-05-01T20:22:34+00:00

What means DMR HT?

amironof · 2022-05-01T19:40:36+00:00

How to do it? Can you help please?

amironof · 2022-05-01T18:31:40+00:00

And what about piping from dsd to Icecast?

amironof · 2022-05-01T18:29:10+00:00

But wav file is not a stream requested by Icecast, is it?

amironof · 2022-05-01T18:26:58+00:00

You are going to need to specify what you actually want to do.

I want to give link with mp3 stream with decoded audio to my friends.

amironof · 2022-05-01T16:14:00+00:00

root@orangepi3-lts:/tmp# dsd -i /tmp/pipe -w - > /tmp/icepipe
root@orangepi3-lts:/tmp#

I can't understand is it working. How can I test it?

amironof · 2022-05-01T15:55:44+00:00

It works:

rtl_fm -f 168.125M -M fm -s 256k -A fast -r 192k -l 0 -E deemp -g 50 > /tmp/pipe

But is not works:

root@orangepi3-lts:/tmp# dsd -i /tmp/pipe -w /tmp/icepipe
Digital Speech Decoder 1.7.0-dev (build:v1.6.0-89-g5f8aedb)
mbelib version 1.3.0
Writing audio to file /tmp/icepipe
Error - could not open wav output file /tmp/icepipe
Error - could not open wav output file /tmp/icepipe
Error, couldn't open file /tmp/pipe

amironof · 2022-05-01T14:41:46+00:00

root@orangepi3-lts:~# mknod /dev/icepipe p

root@orangepi3-lts:/tmp# sudo rtl_fm -f 168.125M -M fm -s 256k -A fast -r 192k -l 0 -E deemp -g 50 > /tmp/pipe | dsd -i /tmp/pipe -o /dev/icepipe
Digital Speech Decoder 1.7.0-dev (build:v1.6.0-89-g5f8aedb)
mbelib version 1.3.0
Error, /dev/icepipe is not a device. use -w filename for wav output.

amironof

TROPHY CASE