2014 Archives

Adding custom commands to octoprint

22nd July 201431st May 2016 Greg

To follow on from my last post about controlling a PSU with a transistor on a 3D printer running OctoPrint on a Sanguinololu board I have created a few custom buttons to increase the functionality of the software with these new features. If not specified via the commandline, the configfile config.yaml for OctoPrint is expected in its settings folder, which... Read More

Controlling an ATX power supply (PSU) with a transistor

21st July 201431st May 2016 Greg

I have recently built a 3D printer. Yay me! It is running OctoPrint which allows my 3D printer to be web accessible. This is great except that as it stands I need to telephone my good lady Wife should I need to print anything while I am out – which surprisingly happens quite frequently – so she can turn on... Read More

212.3.208.65

11th July 201431st May 2016 Greg

I hope you are enjoying #algorithm :) I guess you got here because you searched for the IP address 212.3.208.65 while watching algorithm. What do you think so far? Will they get together or has he spent too long in the Friend Zone? Did you spot the camera crew in the black room reflected in the lightshade before it was... Read More

ArachnidLabs MiniShift arduino – the coding continues

3rd May 201431st May 2016 Greg

So far I have modified my code to use control codes: ~b: display byte eg ~bf0 to show 11110000 on the display ~c: display character eg ~c41 to show ‘A’ (ASCII character 0×41) on the display ~i: invert data sent to the display eg ~i1 ~m: display bytes in MSB or LSB order eg ~m0 ~s: set speed between bytes... Read More

ArachnidLabs minishift arduino example

27th April 20141st June 2016 Greg

The ArachnidLabs minishift is a great little board that I purchased from the UK Maker Faire 2014 from their stand. I could not find much online about the board, but here is a basic example to show the wiring and display some scrolling binary. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. http://creativecommons.org/licenses/by-nc-sa/4.0/ Filename: minishift.pde /*... Read More

ArachnidLabs minishift arduino example scrolling text

27th April 201431st May 2016 Greg

As an addon from my last post, I have made a scrolling text display system. It is a work in process and I think I have the logic backwards. I definitely need more boards to stack so I can see it to full effect! You need to grab Adafruit’s glcdfont.c from https://github.com/adafruit/Adafruit-GFX-Library/raw/master/glcdfont.c See it running at http://youtu.be/baRenpdT_Ew edit: Silly me,... Read More

Twitter API 1.1 update for the candy machine

27th February 201431st May 2016 Greg

************************************** Author’s note: PLEASE NOTE THAT I NOW USE AN L293 MOTOR DRIVER IC RATHER THAN JUST A TRANSISTOR PLEASE DO NOT RUN THIS CODE WITHOUT MODIFYING YOUR CIRCUIT TO MATCH I do this so that I can move the motor forwards for 2 seconds to dispense the candy and then reverse for 1 second which pulls any candy that... Read More

apache .htaccess ifModule not allowed here fix

18th February 201431st May 2016 Greg

I have just spent the best part of a day dealing with a stupid issue in apache. My error log showed the following text and none of my sites worked, all giving error 500. /var/www/.htaccess: Read More