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by geoffs
Sat Dec 07, 2019 10:12 am
Forum: General discussion
Topic: No USB/Ethernet Pi 3B+
Replies: 2
Views: 151

Re: No USB/Ethernet Pi 3B+

No heat at all - chip does have a heatsink on it.
I thought the component in question might be a power regulator for the SMSC9514.

It's still a usable PI - assuming that the GPIO works, haven't tested that as I'm waiting for some 3.3V to 5V level shifters to connect to an Arduino.

Regards
Geoff
by geoffs
Sat Dec 07, 2019 9:52 am
Forum: General discussion
Topic: No USB/Ethernet Pi 3B+
Replies: 2
Views: 151

No USB/Ethernet Pi 3B+

I've acquired a Pi 3B+ that works - except for USB and Ethernet. I can boot it OK and access via ssh but USB is not recognised, neither is Ethernet. A check on the board shows a broken component near what I believe is the USB/Ethernet chip. See image, - circled. Can someone Identify this IC? I could...
by geoffs
Tue Feb 17, 2015 6:37 am
Forum: Troubleshooting
Topic: Boot fails after move to Jessie
Replies: 13
Views: 17018

Re: Boot fails after move to Jessie

Looks like I spoke too soon.
I've just done a reboot after dns stopped working and I still get the 'failed to start login service'
by geoffs
Sat Feb 14, 2015 12:19 pm
Forum: Troubleshooting
Topic: Boot fails after move to Jessie
Replies: 13
Views: 17018

Re: Boot fails after move to Jessie

I also have (or had) this problem after updating to jessie on a Pi 2. Before remaking the SD card, I had a look for systemd logind bugs on Debian and found this post https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=764298 Having nothing to lose, I removed the dbus package and then reinstalled it. A...
by geoffs
Thu Nov 13, 2014 1:27 pm
Forum: Troubleshooting
Topic: sd card contact failures
Replies: 3
Views: 792

Re: sd card contact failures

They don't appear to be bent. You're right though, the cheaper ones do seem a bit thinner. I was able to get one of the previously un-bootable cards to boot if I held the connector end tightly against the Pi. Not always repeatable though. I couldn't find any mention of faulty sd connectors other tha...
by geoffs
Thu Nov 13, 2014 12:24 pm
Forum: Troubleshooting
Topic: sd card contact failures
Replies: 3
Views: 792

sd card contact failures

I'm having a problem just recently with SD cards making poor contact in the Pi and not booting. Basically, a Pi will not boot from some previously OK cards. If I put the problem SD card in either my laptop or an external card read, I can read and write to it without problem. It seems that the contac...
by geoffs
Tue Jul 15, 2014 3:09 am
Forum: General discussion
Topic: The Raspberry Pi Model B+ Q&A thread
Replies: 388
Views: 200875

Re: The Raspberry Pi Model B+ Q&A thread

I like the idea of 4 USB ports (and 4 mounting holes!) but not crazy about the nearly 18% increase in price from the local supplier (element 14) :o Maybe an exchange rate thing? May have been just a new product glitch. The B+ shows on the element14 site as $A38 plus tax, the same as the Model B. If...
by geoffs
Mon Jul 14, 2014 1:25 pm
Forum: General discussion
Topic: The Raspberry Pi Model B+ Q&A thread
Replies: 388
Views: 200875

Re: The Raspberry Pi Model B+ Q&A thread

I like the idea of 4 USB ports (and 4 mounting holes!) but not crazy about the nearly 18% increase in price from the local supplier (element 14) :o
Maybe an exchange rate thing?
by geoffs
Sun Jun 08, 2014 9:32 am
Forum: Automation, sensing and robotics
Topic: SHT10 shows very high (relative) humidity (in soil)
Replies: 22
Views: 12171

Re: SHT10 shows very high (relative) humidity (in soil)

The ones that Adafruit are selling, are in a waterproof housing.
If your sensor gets wet, then it will no longer be accurate.
by geoffs
Fri Apr 25, 2014 1:28 pm
Forum: Raspberry Pi OS
Topic: How does Raspian know the time?
Replies: 10
Views: 2334

Re: How does Raspian know the time?

If you run

Code: Select all

netstat -anu
you'll see the NTP connections
by geoffs
Sun Apr 20, 2014 10:48 am
Forum: Networking and servers
Topic: Restart network without reboot
Replies: 18
Views: 128048

Re: Restart network without reboot

service networking restart

This will restart all the network interfaces.
by geoffs
Sun Apr 20, 2014 2:06 am
Forum: Beginners
Topic: Power supply
Replies: 11
Views: 1834

Re: Power supply

In my case, the black wire is connected to the Pi via the micro USB power connector.
by geoffs
Sat Apr 19, 2014 11:39 am
Forum: Beginners
Topic: Power supply
Replies: 11
Views: 1834

Re: Power supply

I've just connected a USB hard disk to my Pi based webcam and had the same concerns about backpowering. I ended up making a USB cable that only has the green/white wires connecting the PI and hard disk while a small PCB board connects the power supply (DC-DC converter) to the USB disk and to the mic...
by geoffs
Sun Apr 06, 2014 2:14 pm
Forum: General discussion
Topic: Reading USB data ELM327
Replies: 2
Views: 16791

Re: Reading USB data ELM327

Has anyone made any progress with an OBD interface on the PI? I just found an obddiag.net adaptor kit which I ordered a couple of years ago and forgot all about. I'm putting it together now and though it would be a perfect partner for the Pi. Ideally, I'd like to be able to log OBD data and video fr...
by geoffs
Sun Mar 30, 2014 10:12 am
Forum: Camera board
Topic: RPi Cam Web Interface
Replies: 5190
Views: 1511959

Re: RPi Cam Web Interface

I don't know how I missed seeing this one,! Well done and thanks.
I've spent some weeks getting a Pi based webcam up and running using the Python picamera module but for a second camera, I might switch over to using this package.
by geoffs
Mon Jan 27, 2014 4:41 am
Forum: General discussion
Topic: STICKY: Introduce yourself!
Replies: 3744
Views: 229828

Re: Introduce yourself!

Hi I'm Geoff. Working with computers for nearly 40 years, I bought a Raspberry PI out of curiosity (and because it ran Linux) and I now have 5 of them doing various jobs. Latest is a weather camera which is a Pi and a Pi camera module. It takes 3 shots every 5 minutes, combines them into an HDR imag...
by geoffs
Mon Jan 27, 2014 4:34 am
Forum: General discussion
Topic: What is the ideal Raspberry Pi CPU temperature range?
Replies: 54
Views: 145286

Re: What is the ideal Raspberry Pi CPU temperature range?

Just thought I'd check the CPU temperature of my Raspberry PIi and it's sitting at 56°.
Mind you , the Raspberry PI is sitting in a sealed metal box (camera housing) on the wall of the shed and it's over 34° outside.
No problems so far.

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