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by pete_l
Sun Aug 30, 2020 8:22 pm
Forum: Troubleshooting
Topic: sudo apt-get update failed on Raspberry Pi B+
Replies: 22
Views: 595

Re: sudo apt-get update failed on Raspberry Pi B+

Don't worry about all this diagnostic stuff. If you can connect your Pi to *any* other website then your connection is fine. I have noticed that my connections to archive.raspberrypi.org flake out occasionally, too. I don't know why, or where the problem is. What I do know is that other sites don't ...
by pete_l
Fri Mar 18, 2016 2:52 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 Wifi Setup
Replies: 72
Views: 336552

Re: Raspberry Pi 3 Wifi Setup

I found the solution. The files brcmfmac43430-sdio.txt and brcmfmac43430-sdio.bin where missing in /lib/firmware/brcm. Yes. I've just installed 2016-02-26-raspbian-jessie.img on a brand new RPi-3 and it failed to start the WiFi. The two files you mentioned were present in the release, but had diffe...
by pete_l
Fri Dec 25, 2015 2:00 pm
Forum: Beginners
Topic: Power supply with 5.35V / 2A safe?
Replies: 9
Views: 1987

Re: Power supply with 5.35V / 2A safe?

Thanks all! I just cut a spare USB cable and connected it to the 5.35/2A adapter and found a reading of max 5.05V on my DVM . Suppose the text on the adapter is not really to be trusted? So I guess I should be safe? You are assuming that you DVM is calibrated. What reading does it show for a nomina...
by pete_l
Mon Dec 21, 2015 11:13 am
Forum: Python
Topic: python script stops after 3-4 hours run
Replies: 5
Views: 1790

Re: python script stops after 3-4 hours run

I can't say if it's pertinent to your application hanging, but I wouldn't run code that waits indefinitely on an input state. All you need is to miss a (short) transition and your code will hang forever. I'd suggest something like this: measurement = 0 GPIO.setup(PPin, GPIO.IN) while (GPIO.input(PPi...
by pete_l
Sun Dec 20, 2015 9:03 am
Forum: Beginners
Topic: Using a powerbank - updated with some results
Replies: 18
Views: 12280

Re: Using a powerbank - updated with some results

Success. OK, After trying, unsuccessfully, with a couple of random Power Banks. I've got some hard facts about one that works. I purchased an EasyAcc Colorido-G2 10000mAh (€18.69, free delivery) and it will both power a Pi and recharge itself, switching from one mode to another, without disturbing ...
by pete_l
Sat Dec 19, 2015 10:08 pm
Forum: Advanced users
Topic: root SSH login not working with Jessie, Access denied
Replies: 6
Views: 38019

Re: root SSH login not working with Jessie, Access denied

First thing you have to do is supply a password for the root user. To do this, log in as the default Pi user and run: sudo bash which will give you a root privilege shell. Next set a password for the root user: passwd <whatever password you like> and repeat it when asked. You can now "go" to the roo...
by pete_l
Thu Dec 10, 2015 12:41 pm
Forum: Beginners
Topic: Using a powerbank - updated with some results
Replies: 18
Views: 12280

Re: Using a powerbank

Yoda, thanks for answering the question. I have also had it on good authority that the Easyacc PB10000CF Power Bank can charge and be charged at the same time, so that you can charge your power bank and smartphone at same time. according to Amazon. :) I suppose the acid test is whether there are swi...
by pete_l
Mon Dec 07, 2015 2:17 pm
Forum: Beginners
Topic: Using a powerbank - updated with some results
Replies: 18
Views: 12280

Using a powerbank - updated with some results

I can power a Pi from a powerbank with a USB output. However I find that as soon as I apply charging power to the powerbank, it cuts the 5 Volt output to the Pi. I have tried this with 2 different power banks: an Amazonbasics 5600mAh and a generic 10400mAh model. I'm not interested in the why's and ...
by pete_l
Wed Jul 24, 2013 6:55 pm
Forum: Advanced users
Topic: Adding a microphone - question
Replies: 4
Views: 3340

Adding a microphone - question

Since the Pi doesn't support microphone input, I've attempted to add a small USB sound card to fix this problem. The card is seen by my Linux pi 3.6.11+ #474 PREEMPT Thu Jun 13 17:14:42 BST 2013 armv6l GNU/Linux kernel and dmesg reports it as this: [19591.036582] hid-generic 0003:04D9:1503.000D: inp...
by pete_l
Sun Jul 14, 2013 5:51 pm
Forum: Beginners
Topic: Disable HDMI Audio & Force 1/8" Jack Audio?
Replies: 12
Views: 78789

Re: Disable HDMI Audio & Force 1/8" Jack Audio?

I agree with msilvestri in his OP. I'm running 2013-05-25-wheezy-raspbian.img and the amixer command does nothing like what other people claim. Maybe it did with early versions, but with the 25-May cut of Raspbian the functions have changed completely. The last parameter (the "1" in most examples) s...
by pete_l
Sun Jun 23, 2013 8:01 am
Forum: Troubleshooting
Topic: Pi running at 100% CPU constantly
Replies: 16
Views: 9055

Re: Pi running at 100% CPU constantly

I was thinking of going ahead and installing Wayland/Weston Probably not a wise move. The best course of action is to keep your current config (the "productised" / stable release that came with your Pi) and get to the root cause of the performance problem. Alternatively, wipe your card completely a...
by pete_l
Mon Jul 02, 2012 7:40 am
Forum: General discussion
Topic: Buy keyboard
Replies: 7
Views: 2551

Re: Buy keyboard

I found ASDA's £2.50 keyboard (and similarly priced mouse) to be usable with the Pi. You don't really want to go spending much on peripherals - it defeats the whole point of a cheap little computer board.
by pete_l
Thu Jun 14, 2012 7:11 pm
Forum: Other
Topic: Ubuntu on Arm
Replies: 8
Views: 8060

Re: Ubuntu on Arm

Someone's got Ubuntu 12.04 Running on a MK802. It's more expensive than a Pi (£48 compared to the Pi's £30), but if you only value your developemnt time at £1 / hour, you'll still come out ahead going down that route rather than trying to shoehorn a version of Ubunt onto a Pi.
by pete_l
Thu Jun 07, 2012 10:48 pm
Forum: Beginners
Topic: Compatible Keyboard + Mouse wifi
Replies: 12
Views: 13905

Re: Compatible Keyboard + Mouse wifi

In the spirit of a £30 embedded computer, I used a £5 ASDA keyboard and a £2.50 ASDA mouse. Both wok fine. Although if you plug them both into the onboard USB ports, there's nothing left for anything else. So I'd suggest splashing out for a £1.50 4-port USB hub - the sort with 4 USB connectors on sh...

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