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  • It's all coming together
  • Log     from Orange PI PC Computer
  • I spent the better part of today jigsawing and drilling holes into the case of my little computer to fit all the connectors and bolt the various PCBs in place. I must say that I'm pretty pleased with the end result. Everything fits together nicely, although...

  • Bringing (Marlin) the wizard
  • Log     from Replicator K
  • So after I was sure that all the connections were correct it was time to put the firmware into the machine.I forgot to get the configuration values before taking out the original board so I hooked the board to the power supply (soldered the original...

  • Measured Once
  • Log     from RetroRiter
  • I returned home one day to see a package from Ponoko at my door. Hastily I opened, and had a brief panic inducing moment:Burn marks everywhere!But once I peeled off the paper, everything looked fine. Really good in fact. I was worried that a few lines...

  • Reading serial data with Python
  • Log     from Load Frame Update
  • At this point in the project I've given some brief descriptions of how the Arduino is reading the digital signals from the quadrature encoder that measures position and the analog output of the load cell. These data are then written to the serial port...

  • First version
  • Log     from Box of Clicky Light Awesomeness
  • My first version of the click box of awesome has been built. Here are the core specifications:30 neopixels (9 x 6)A SSD1306 I2C OLED28mm speaker from adafruitA capacitance based touchpad, hand soldered to copper foilAn external USB port for rapid reporgrammingTeensy...

  • Software: Networking
  • Log     from Custom Articulated Joint
  • The eventual robot is going to have *lots* of these joints. If I took a traditional servo approach, I'd need three wires per devices - power, ground and PWM. Assuming I bus the power and ground, that still leaves one wire per device for control; so with...

  • Automatic Crash Detection
  • Log     from Delta 3D Printer
  • After upgrading to zero-backlash magnetic ball links I found that occasional print crashes were now a major problem. With the old fixed ball links the printer would generally crash and keep printing in the air just above the object. When a magnetic ball...

  • Building the Y-axis
  • Log     from Turning a Makibox into a PCB Mill
  • I've now built the aluminium frame and completed the Y-axis. Of course, this was not without it's problems.Firstly, I misordered - I was one set of uprights short. This may not be a massive problem though, as I hadn't taken into account the...

  • Photos
  • Log     from The ides of DEFCON: An Unofficial Electronic Badge
  • Hope everyone had a good Thanksgiving. Over the holiday break, we've made quite a bit of software progress. Huge, huge progress.We integrated the Orchard events system with ugfx events, which gave us access back to all of ugfx's widgets (which we really...

  • Design 2: Waterproof flashlight
  • Log     from Simple ROV waterproof cameras
  • The electronics of this design appear sound, but the first design failed at depth to keep the water out. So, on to design two.A commenter suggested I look at converting a waterproof flashlight to contain the camera, and this seems like a fabulous idea....

  • The maths?
  • Log     from Room Based VR Positioning
  • I’ve just put my thoughts down elsewhere while trying to explain what I see the maths problem behind this project, and I thought I’d share them here too. It’s quite late at the end of my third 15hr work day so a little slack is appreciated. That said,...

  • Prototype done!
  • Log     from ADITI:Affordable Diagnostic Thermal Incubator
  • We got the first prototype done, We interfaced the respiration sensing belt, Pulse Ox & Body temperature along with some early PWM controlled Textile Heating Pad. An IRFZ44 N-mosfet was used to drive the Heating element using PWM control. We have a cheap...

  • Reading 6 sensors, (mostly) reliably
  • Log     from Precision Indoor Positioning
  • First off-- The code cleanup has gone well. Aside from being better structured, it now supports multiple sensors. Right now 6, but trivial to add more. Here's a short dump of the angles being captured:The first thing to note is that sensors 0-4 appear...
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