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by MrNice
Thu Apr 07, 2016 8:11 am
Forum: Troubleshooting
Topic: STICKY: WiFi Dongle Issues ? Start here !
Replies: 581
Views: 681688

Re: WiFi Issues ? Start here !

Lucky me! I found at the end of a drawer, an SD card with Openelec/Kodi on it. So far I don't know the version because I only ping it ping 192.168.0.121 PING 192.168.0.121 (192.168.0.121) 56(84) bytes of data. 64 bytes from 192.168.0.121: icmp_seq=1 ttl=64 time=5.94 ms 64 bytes from 192.168.0.121: i...
by MrNice
Thu Apr 07, 2016 8:00 am
Forum: Troubleshooting
Topic: STICKY: WiFi Dongle Issues ? Start here !
Replies: 581
Views: 681688

Re: WiFi Issues ? Start here !

Just to add how I am not happy with Raspbian: I did a reinstall from scratch of Raspbian lite, just what I wanted to test LIRC. Headless, easy to install. Now I test ping from WiFi ping 192.168.0.121 PING 192.168.0.121 (192.168.0.121) 56(84) bytes of data. 64 bytes from 192.168.0.121: icmp_seq=1 ttl...
by MrNice
Wed Apr 06, 2016 3:50 pm
Forum: Troubleshooting
Topic: STICKY: WiFi Dongle Issues ? Start here !
Replies: 581
Views: 681688

Re: WiFi Issues ? Start here !

I don't think at all it is an hardware issue; WiFi works fine with Openelec/Kodi, PSU is 2A (TP1-TP2=5.1V with dongle blinking), RPi is at 1meter from AP, RPi is headless nothing connected to RPi, only Ethernet for setup. I tried with another same brand/ref dongle, same issue. I'll start over from s...
by MrNice
Tue Apr 05, 2016 4:02 pm
Forum: Troubleshooting
Topic: WiFi not working when in NOOBS
Replies: 7
Views: 1470

Re: WiFi not working when in NOOBS

I was under the impression only the Official Raspberry Pi WiFi Dongles and the RPi 3B WiFi was supported in NOBS :?: Broadcom Chipsets BCM43143 & BCM43438 Unfortunately the NOOBS documentation is hard to find but....maybe: https://github.com/raspberrypi/noobs/commit/f0347db8d0eece99e97b97ab8ed32a7d...
by MrNice
Tue Apr 05, 2016 9:29 am
Forum: Troubleshooting
Topic: ssh client application not working with Raspberry Pi 3
Replies: 9
Views: 2219

Re: ssh client application not working with Raspberry Pi 3

I am not sure this is a ssh issue. Just from my 2 last days trying to debug. How your WIFI working? Did you try to ping the box through WIFI for at least 1 mn and see the times? There a lot of complain about WIFI, see the sticky WIFI issues Start here thread, few last pages. Hope this will help and ...
by MrNice
Mon Apr 04, 2016 6:30 pm
Forum: Troubleshooting
Topic: RPi2 Raspbian LIRC irsend error
Replies: 3
Views: 1725

Re: RPi2 Raspbian LIRC irsend error

More info
I changed the /etc/modules file from
lirc_rpi gpio_in_pins=23 gpio_out_pins=22
to
lirc_rpi
No error at boot and

Code: Select all

systemctl --failed
0 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.
by MrNice
Mon Apr 04, 2016 5:26 pm
Forum: Troubleshooting
Topic: STICKY: WiFi Dongle Issues ? Start here !
Replies: 581
Views: 681688

Re: WiFi Issues ? Start here !

To disable power management create file /etc/modprobe.d/8192cu.conf for example using command Code: Select all sudo nano /etc/modprobe.d/8192cu.conf and add the single line Code: Select all options 8192cu rtw_power_mgnt=0 rtw_enusbss=0 Terminate the editor with keys cntl-x, y, enter. Reboot to make...
by MrNice
Mon Apr 04, 2016 4:28 pm
Forum: Troubleshooting
Topic: STICKY: WiFi Dongle Issues ? Start here !
Replies: 581
Views: 681688

Re: WiFi Issues ? Start here !

To disable power management create file /etc/modprobe.d/8192cu.conf for example using command Code: Select all sudo nano /etc/modprobe.d/8192cu.conf and add the single line Code: Select all options 8192cu rtw_power_mgnt=0 rtw_enusbss=0 Terminate the editor with keys cntl-x, y, enter. Reboot to make...
by MrNice
Mon Apr 04, 2016 3:44 pm
Forum: Troubleshooting
Topic: RPi2 Raspbian LIRC irsend error
Replies: 3
Views: 1725

Re: RPi2 Raspbian LIRC irsend error

More info: The error is here only when I have lirc_rpi gpio_in_pin=23 gpio_out_pin=22 in /etc/modules. lirc_dev do not lead to an error. dmesg extract: [ 4.742625] systemd[1]: systemd-modules-load.service: main process exited, code=exited, status=1/FAILURE [ 4.765022] systemd[1]: Failed to start Loa...
by MrNice
Mon Apr 04, 2016 3:37 pm
Forum: Troubleshooting
Topic: STICKY: WiFi Dongle Issues ? Start here !
Replies: 581
Views: 681688

Re: WiFi Issues ? Start here !

Thank you for your fast answer. lsusb Bus 001 Device 004: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp. LAN9500 Eth...
by MrNice
Mon Apr 04, 2016 1:34 pm
Forum: Troubleshooting
Topic: STICKY: WiFi Dongle Issues ? Start here !
Replies: 581
Views: 681688

Re: WiFi Issues ? Start here !

Hi, I have a RPi1 512, this is the first time I have installed Raspbian from Noobs. I have the WIFI issue, difficult to connect and loss of packet ie: 14 packets transmitted, 8 received, 42% packet loss, time 13008ms I tried for more than 8 hours to find out what is this issue: Not a good experience...
by MrNice
Sun Apr 03, 2016 5:41 pm
Forum: Troubleshooting
Topic: RPi2 Raspbian LIRC irsend error
Replies: 3
Views: 1725

RPi2 Raspbian LIRC irsend error

Hi, After more that 6 hours installing and troubleshooting my RPi2 with Raspbian (Noobs), I need help because I don't have any hair left on my head. I have only a transmitter IR led, not connected so far. The issue: irsend LIST REMOTE_NAME "DENON" irsend: could not connect to socket irsend: No such ...
by MrNice
Sun Feb 21, 2016 7:14 pm
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

Re: RPi2 USB current output specifications

Done and working/playing fine With models A and B results are the same. I'd guess the difference is only the plug (USA, Australia) I didn't try model C as you says voltage is too high With PSU Samsung ETA-U90EBE (Model B) 1m Thin cable (no ref) Load A@5V PP1-PP5 PP1-PP35 USB pin USB outside connecto...
by MrNice
Sun Feb 21, 2016 4:47 pm
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

Re: RPi2 USB current output specifications

In this case better to use a thin cable. Calibration of my Fluke 79 has been done loooonnng time ago, I'd say 20 years! :oops: So still a bit hesitant, but I'll do some measures with the B @gregeric If you have a friend working in housekeeping in a hotel, there are plenty in lost and found, never cl...
by MrNice
Sun Feb 21, 2016 1:54 pm
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

Re: RPi2 USB current output specifications

Hi, I got 3 PSU, Samsung Travel adapter with USB female connector: A) Model: ETA-U90JWE, 5.0V 2.0A B) Model: ETA-U90EBE, 5.0V 2.0A C) Model: EP-TA10HWE, 5.3V 2.0A and a bunch of USB cables. I did some measures on the PSU alone: Output voltage at an opened male connector with load: Load R (A@5V) A B ...
by MrNice
Fri Feb 19, 2016 11:12 am
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

Re: RPi2 USB current output specifications

You are right, gregeric, my PSU is a bit low under load, but still in the spec, almost are the same however this is the only parameter we can change. I agree, "Official PSU" could be better. Back to the original point. I had audio drops when playing Kodi. With the hack I still had the drops, I am no...
by MrNice
Thu Feb 18, 2016 3:29 pm
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

Re: RPi2 USB current output specifications

As it is not possible to add an attachment in this forum, I copy the values in a code tag, so you can import in a spreadsheet and draw the graphics. R lim = 19.5 ohms R lim = 15.7 ohms Load (mA) PP1-PP5 (V) PP1-PP35 (V) USB pins USB outside connector PP1-PP5 (V) PP1-PP35 (V) USB pins USB outside con...
by MrNice
Sat Feb 13, 2016 3:25 pm
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

Re: RPi2 USB current output specifications

Hi, I did more measurements. I added a 82 kohms // to R4. Not easy to do and I'd not recommend to do that with a solder iron that I used... With the results, I'd guess I have hardly 100 mA more available in the USB spec, 5V +-5% I was not expecting the same curve for the two R lim. Loss of voltage i...
by MrNice
Mon Feb 08, 2016 2:21 pm
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

Re: RPi2 USB current output specifications

The APPLE power supply was only for the previous measurement. The power supply I use for the RPi is NorthPada 5V 2A: Pi without load: => PP1/PP5= 5.3V Pi with USB load= 730 mA => PP1/PP5= 5.1V - USB voltage= 4.8V (resistor ~ 6.6 ohms) Pi with USB load= 1110 mA => PP1/PP5= 5.0V - USB voltage= 4.6V Ju...
by MrNice
Mon Feb 08, 2016 1:31 pm
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

Re: RPi2 USB current output specifications

Thanks for this info gregeric With the formula I find I limit Min 1184 mA. With the graphic, not clear, I find 965 mA. So my Pi is between, I can't argue for that. So I could add a resistor // R4: (formula) 75K => 1476 mA 68K => 1507 mA Is 500 mA for the Pi2 itself enough? But what about the poly fu...
by MrNice
Mon Feb 08, 2016 11:48 am
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

Re: RPi2 USB current output specifications

@Burngat. I didn't think about that, you are right. However with a SOT26 package Switch On-Resistance is Typ 70, Max 135 m-ohms. So I did the measurement again with more test points. No load PP1-PP5 (input voltage) = 5.31V PP48/49/50/51- +V (USB pins on the board) = 5.26V With load 1110 mA PP1-PP5 (...
by MrNice
Sat Feb 06, 2016 8:17 pm
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

Re: RPi2 USB current output specifications

To be accurate: I have a multimeter Fluke 79 (last calibration long time ago, this is why I write only 1 decimal digit) For 730mA I have few resistors in parallel total around 6.6 ohms For 1110mA I did a constant current limiter with a LM317. For the both I first did a current measurement to check t...
by MrNice
Fri Feb 05, 2016 12:29 pm
Forum: Advanced users
Topic: RPi2 USB current output specifications
Replies: 30
Views: 4771

RPi2 USB current output specifications

HI, I run Kodi on my RPi2B with a 2TB Samsung 2.5" USB connected. When I play some HD audio files, I get drops every few minutes. I tested with other HD, powered hub, there is no drop. In config.txt, max_usb_current=1 is set. USB specification with max_usb_current=1 is 1200 mA, 4.75V mini (5.00V +-5...
by MrNice
Mon Nov 03, 2014 6:01 pm
Forum: Media centres
Topic: Music players for Raspberry Pi
Replies: 9
Views: 42462

Re: Music players for Raspberry Pi

I forgot to tell I use pass-through.
I just did a test and .... no drop! I don't understand why as I changed nothing from the last test few days ago.
I'll go further and let you know.
by MrNice
Sat Nov 01, 2014 8:04 pm
Forum: Media centres
Topic: Music players for Raspberry Pi
Replies: 9
Views: 42462

Re: Music players for Raspberry Pi

Many thanks trondis23, You answered my questions in http://www.raspberrypi.org/forums/viewtopic.php?f=35&t=90098 I can conclude that there are only Raspbmc and Openelec as media player with - Connected monitor for menu - IR remote control - 5.1 24/96 music playback - USB Hard drive. Could you confir...

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