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by led-bloon
Mon Aug 17, 2020 6:28 am
Forum: General discussion
Topic: DC Motor doesn't spin anti-clockwise in Rpi using L298N
Replies: 7
Views: 320

Re: DC Motor doesn't spin anti-clockwise in Rpi using L298N

Try pseudo-code :
Open door
gpio write 6 0 # Disable motor
gpio write 4 1
gpio write 5 0
gpio write 6 1 # Re-enable

Close door
gpio write 6 0 # Disable motor
gpio write 5 1
gpio write 4 0
gpio write 6 1 # Re-enable
led
by led-bloon
Mon Jul 13, 2020 5:35 am
Forum: Raspberry Pi OS
Topic: STICKY: Buster bug report thread
Replies: 398
Views: 105793

FreeCAD 0.18 crashes

FreeCAD 0.18 crashes on a Pi 4B 4G - Buster - 32 or 64 bit kernel. Same result on a Pi 3B+
From the opening screen...
Selecting 'File - New' or 'File - Open' results in a complete crash of the program (back to desktop).
FreeCAD 0.16 on Stretch OS runs ok on a Pi 3B+.
led
by led-bloon
Mon Jul 06, 2020 8:27 am
Forum: General discussion
Topic: Mirror site problems
Replies: 3
Views: 169

Re: Mirror site problems

Thanks for the advice, however I think I am not making myself clear enough! I have used apt, apt-get AND synaptic. However the mirror site (raspbian.melbourneitmirror.net - 202.124.241.168) is not providing the software that apt requests, even though I can ping the site ok (while it is NOT sending m...
by led-bloon
Mon Jul 06, 2020 7:26 am
Forum: General discussion
Topic: Mirror site problems
Replies: 3
Views: 169

Mirror site problems

Using apt-get I am having big problems with my mirror site here in Melbourne Oz
Where is this configured, so that I may try other mirrors. Goggle wasn't much help
(although I never seem to be able to ask the right questions!)
TIA -- led
by led-bloon
Tue Nov 01, 2016 9:30 am
Forum: Off topic discussion
Topic: Spinach leads to new version of the PI?
Replies: 2
Views: 1123

Spinach leads to new version of the PI?

Interesting news article... http://www.abc.net.au/news/2016-11-01/spinach-used-to-detect-explosive-materials/7983426 Which naturally leads to... A new version of the PI is coming, 50% larger in size. The extra "real estate" used for surface mount spinach! Still designing the water-cooling ...
by led-bloon
Sun Dec 27, 2015 6:42 am
Forum: Bare metal, Assembly language
Topic: Platform detection
Replies: 14
Views: 3568

Re: Platform detection

You can try some code like this... /******************************************************************* Defined elsewhere... unsigned int PERIPH_BASE; // Base address to add to Register offsets #define BASE_1 0x20000000 #define BASE_2 0x3f000000 // RaspberryPi B2 The 'else' code works out the model ...
by led-bloon
Mon Apr 06, 2015 8:14 pm
Forum: Bare metal, Assembly language
Topic: Contributions now welcome for Baking Pi
Replies: 2
Views: 1051

Re: Contributions now welcome for Baking Pi

Thanks for sharing your work with us. A truly amazing, almost Pi-fect, job. Best regards.
by led-bloon
Thu Mar 12, 2015 8:19 pm
Forum: General discussion
Topic: DietPi | Minimal Raspbian. Optional "ready to run" software
Replies: 642
Views: 273923

Re: [Diet-Pi] Minimal Raspbian. Optional "ready to run" soft

Just an update on busybox. A good exercise (in futility) but basically not worth the effort!
After replacing 200+ commands with busybox I saved only 10 MB of disk space.
Therefor busybox is probably only useful for SOCs with limited onboard flash memory.
Thanks again for the distro though.
by led-bloon
Mon Mar 09, 2015 1:55 am
Forum: General discussion
Topic: DietPi | Minimal Raspbian. Optional "ready to run" software
Replies: 642
Views: 273923

Re: [Diet-Pi] Minimal/Lightweight Raspbian Image now availab

Just loaded up a minimal installation - great job! I notice that you have not used busybox, is there a reason? With 347 commands in a 1MB file, should be good savings in size. I will start to replace commands with busybox and check savings (first cab off the rank is to add 'vi'). FYI: For anyone int...
by led-bloon
Fri Jan 30, 2015 7:41 pm
Forum: General discussion
Topic: Problem with sudo apt-get upgrade
Replies: 33
Views: 10654

Re: Problem with sudo apt-get upgrade

I had the same (similar?) problem with one of my B+ boards - the one with the Gertduino board installed. I have stayed out of this thread so as not to confuse matters. My problem I believe I caused by recently running raspi-config and deleting en_US and en_GB from the locales while keeping my en_AU ...
by led-bloon
Thu Jan 29, 2015 10:34 am
Forum: General discussion
Topic: Problem with sudo apt-get upgrade
Replies: 33
Views: 10654

Re: Problem with sudo apt-get upgrade

I have the same problem with one of my B+ boards. It currently has the gertduino board installed and whatever recommended software. Will find some time to try and track this down, unless someone else hasn't already. The kicker line is with dpkg: unable to make backup link of `./usr/share/i18n/locale...
by led-bloon
Mon Jan 26, 2015 8:16 pm
Forum: Bare metal, Assembly language
Topic: Bare metal programming - downloading programs
Replies: 12
Views: 4598

Re: Bare metal programming - downloading programs

I have set up a system, mainly using Dave Welch's code - modified. Currently I'm using it "pi2pi" where I use my mini-terminal program plus his downloader program to download, test and reboot WITHOUT pulling the SD card or powering on/off the bare metal pi. Some examples including gpio, sp...
by led-bloon
Tue Jul 22, 2014 11:13 pm
Forum: General discussion
Topic: Happy Pi Approximation Day!
Replies: 10
Views: 2507

Re: Happy Pi Approximation Day!

7/22 is an approximation of ip not pi
by led-bloon
Sun Jul 20, 2014 8:10 am
Forum: General discussion
Topic: Pi B+ won't shutdown? Tying pin 28 to GND seems to solve it
Replies: 57
Views: 15954

Re: Pi B+ won't shutdown? Tying pin 28 to GND seems to solve

Using that bootcode.bin ::
Both the Model A 256MB & the Model B 512 MB appear to behave as normal.
The Model B+ seems to have fixed the "proximity switch reboot" feature
including, as noted previously, return of the ten pulse shutdown sequence.
by led-bloon
Sat Mar 15, 2014 9:49 am
Forum: General discussion
Topic: hostapd.conf won't load wifi driver
Replies: 7
Views: 5237

Re: hostapd.conf won't load wifi driver

Try 'comment out' the driver line with a # in front.
The system should pick up the correct driver.
Works for me.
Rgds
led

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