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by energyi
Sun Jul 14, 2019 3:14 pm
Forum: General discussion
Topic: Pi Zero W is $5 at Microcenter
Replies: 2
Views: 242

Re: Pi Zero W is $5 at Microcenter

Qty1 is always $5. Except on pi day when it is $3.14. Can't seem to leave the store without one.
by energyi
Fri Jul 12, 2019 10:14 pm
Forum: General discussion
Topic: Pi 4 heat sinks
Replies: 21
Views: 1291

Re: Pi 4 heat sinks

I'm running without a heat sink, but with a fan blowing up direction in a open walled case and temp stays in low 40's.
by energyi
Sat Jul 06, 2019 2:39 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 261
Views: 47353

Re: Raspberry Pi 4 temperature

PhilE wrote: ↑
Tue Jul 02, 2019 8:09 am
 By the way, if you run "sudo ./vl805" with no parameters it displays the version of the currently running firmware. Note that this may differ from what's in the EEPROM if you've just reprogrammed it but not rebooted.
VL805 FW version: 000137a8
by energyi
Sat Jul 06, 2019 2:29 am
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1234

Re: FLAC working on Rpi4 1 GB, not working on 4 GB

Today reflashed Raspbian Buster desktop. FLAC files from original source are now playing fine in VLC with Pi4 4 GB RAM. Files that were transferred previously still do not work. Something was wrong with the file transfer which corrupted the FLACs, don't know what it was. Go figure.
by energyi
Tue Jul 02, 2019 3:05 am
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1234

Re: FLAC working on Rpi4 1 GB, not working on 4 GB

drgeoff wrote: ↑
Mon Jul 01, 2019 11:06 pm
You did reboot after editing /boot/config.txt?
[/quote]

Yes
by energyi
Mon Jul 01, 2019 9:51 pm
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1234

Re: FLAC working on Rpi4 1 GB, not working on 4 GB

jamesh wrote: ↑
Sun Jun 30, 2019 8:38 am
 Did you test with the memory settings described above?
Sorry, didn't see that suggestion. Yes, changed to total_mem=1024, still gaps in playback on pi4 4 GB RAM.
by energyi
Mon Jul 01, 2019 12:41 am
Forum: General discussion
Topic: Not all RPI 4's are equal?
Replies: 34
Views: 2594

Re: Not all RPI 4's are equal?

0.357 watt difference is significant.
by energyi
Sun Jun 30, 2019 2:47 am
Forum: Raspbian
Topic: Audio Distortion using mpg321/123 or aplay
Replies: 14
Views: 857

Re: Audio Distortion using mpg321/123 or aplay

What files have to be removed or purged to totally remove pulseaudio? pi@raspberrypi:~ $ dpkg -l | grep pulseaudio ii pulseaudio-dlna 0.5.3+git20170406-1 all Stream audio to DLNA devices and Chromecasts ii pulseaudio-utils 12.2-4 armhf Command line tools for the PulseAudio sound server ii xfce4-puls...
by energyi
Sat Jun 29, 2019 10:31 pm
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1234

Re: FLAC working on Rpi4 1 GB, not working on 4 GB

Anyone else having audio challenges on a 4 GB RAM rpi4 running FLACs with VLC?
by energyi
Sat Jun 29, 2019 9:53 pm
Forum: General discussion
Topic: Not all RPI 4's are equal?
Replies: 34
Views: 2594

Re: Not all RPI 4's are equal?

How they can be identified?`
by energyi
Sat Jun 29, 2019 9:31 pm
Forum: General discussion
Topic: Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM
Replies: 9
Views: 1369

Re: Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM

Saw the official case and thought that the pi4 is going to need a fan because my temps were already higher than I like without a case so didn't purchase. The outdated octane scores I posted didn't include any case in a relatively cool room.
by energyi
Fri Jun 28, 2019 6:48 pm
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1234

Re: FLAC working on Rpi4 1 GB, not working on 4 GB

Yes, had a USB 3.0 thumbdrive and USB 3.0 Hard drive connected. Put the FLACs onto the desktop, shutdown, removed t he USB 3.0 devices. Still, FLAC over VLC doesn't work properly, gaps, jumps.

Again, worked on 1 GB RAM with USB 3.0 devices, not working on 4 GB RAM. Thanks.
by energyi
Fri Jun 28, 2019 1:06 pm
Forum: General discussion
Topic: Here is a printable case I designed for the Rpi 4 :)
Replies: 2
Views: 528

Re: Here is a printable case I designed for the Rpi 4 :)

Temperatures? Looks good, thanks for sharing.
by energyi
Fri Jun 28, 2019 12:49 pm
Forum: General discussion
Topic: FLAC working on Rpi4 1 GB, not working on 4 GB
Replies: 15
Views: 1234

FLAC working on Rpi4 1 GB, not working on 4 GB

Any reason a FLAC file plays with gaps on a 4 GB RAM Rpi4, but works fine on 1 GB RAM version? Same microSD card, VLC player.
by energyi
Thu Jun 27, 2019 8:11 pm
Forum: General discussion
Topic: Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM
Replies: 9
Views: 1369

Re: Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM

Outdated Octane Benchmark Score on Raspberry Pi 4 4 GB RAM is 8454.

Just trying to show rpi scores. Yes, have lots of other scores from other OS and boxes, but hoping this is helpful to the Rpi community to compare and contrast old benchmarks to new 4 versions.
by energyi
Thu Jun 27, 2019 5:15 am
Forum: General discussion
Topic: How is 3.5 mm analog audio out on PI4?
Replies: 22
Views: 2186

Re: How is 3.5 mm analog audio out on PI4?

Previously wrote: Audio output from 4B is excellent. That was running FLACs with VLC. However, that was on a 1 GB RAM. With a 4 GB RAM rpi 4B the audio output is bad. Gaps, skips. Don't know why it was different, microSD card and USB 3.0 thumb-drive and hard drive is exactly the same. You would thin...
by energyi
Wed Jun 26, 2019 10:57 pm
Forum: General discussion
Topic: Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM
Replies: 9
Views: 1369

Outdated Octane Benchmark Score on Raspberry Pi 4 1 GB RAM

Thought if anyone was interested I would post my Octane Benchmark score for the Raspberry Pi 4 1 GB RAM straight out of the box, no logging into anything, just going immediately to http://chromium.github.io/octane/. Score for the Raspberry Pi 4 1 GB RAM was 7652. This benchmark is outdated, but I st...
by energyi
Wed Jun 26, 2019 10:47 pm
Forum: General discussion
Topic: 1 GB RAM Raspberry Pi 4 Optimization
Replies: 13
Views: 1609

1 GB RAM Raspberry Pi 4 Optimization

If you are like me, you might not have gotten access to the higher GB Ram models because they were sold out. The 1 GB RAM version seems good in its own right; audio is surprisingly good! Purchased a 64 GB Class 10-UHS-1 microSDXC card which I am hoping can somehow make up for the reduced onboard RAM...
by energyi
Wed Jun 26, 2019 9:24 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 261
Views: 47353

Re: Raspberry Pi 4 temperature

Light duty web, No case, horizontal Rpi4 1G version 57 C and 56.5 C:

Code: Select all

pi@raspberrypi:~ $ vcgencmd measure_temp
temp=57.0'C
pi@raspberrypi:~ $ cat /sys/class/thermal/thermal_zone0/temp
56478
by energyi
Mon Jun 24, 2019 3:25 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 705
Views: 59976

Re: Raspberry Pi 4 Thread - general discussion

Great job by the Foundation to keep this quiet, something the bigger companies can't do. That itself is a valuable performance.

Can't wait to team the 4 with a Coral usb.
by energyi
Mon Jun 17, 2019 7:03 am
Forum: Automation, sensing and robotics
Topic: Indoor Environmental Sensor
Replies: 4
Views: 796

Re: Indoor Environmental Sensor

Thumbs up, great work on the sprinkler.
by energyi
Thu Jun 13, 2019 5:37 pm
Forum: Automation, sensing and robotics
Topic: Indoor Environmental Sensor
Replies: 4
Views: 796

Re: Indoor Environmental Sensor

Very nice work for your sleep study. Are you planning to open source the code and packaging? Could be valuable for other applications. I like the idea of monitoring car indoor conditions, and possibly have a pm 2.5 sensor added. Using BME280's for humidity control on a swamp cooler. Also BME680s are...
by energyi
Thu Jun 13, 2019 5:32 pm
Forum: HATs and other add-ons
Topic: HAT with environmental sensors - what should be on it?
Replies: 5
Views: 871

Re: HAT with environmental sensors - what should be on it?

Just FYI, no endorsement: https://coral.withgoogle.com/products/environmental
by energyi
Thu Jun 06, 2019 4:44 pm
Forum: General discussion
Topic: Automatic shutdown for pi in a car
Replies: 22
Views: 14464

Re: Automatic shutdown for pi in a car

Assuming you want to shut down properly to save the microSD card. I did a rpi ZeroW car unit for about a year on a cheap microSD card which just shutdown when ever the car was turned off, no problems. YMMV

Another option is a USB boot, which might be less detrimental to a power off scenario.
by energyi
Thu Jun 06, 2019 12:23 am
Forum: General discussion
Topic: 2cameras and 1raspberry ?
Replies: 3
Views: 204

Re: 2cameras and 1raspberry ?

One Rpi Zero can have one usb camera and one Raspberry pi camera connected to the special camera socket running headless. A pi 2 or 3 has four USB ports, so can have five cameras, again headless. Previous thread on using low cost salvaged webcams for usb video input on a zero: https://www.raspberryp...

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