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  • Control Sub-System

  • I have drawn initial schematics for this sub-system, but have not started wiring it up.Here are design notes that help understand the schematics.Clock: At the heart of the Clock module is a 4 MHz crystal that is divided into four non-overlapping...
  • New Connector Masterboard

  • 11/5/14 With Aaron, we tried to trace the controller cables. I documented the wirewrap job that had been done, probably at Case, as well as the connectors. Then I removed the offending innards and placed them aside, including an obsolete sort of motherboard....
  • SubPos Positioning System

  • The SubPos Wi-Fi Positioning System is an indoor positioning system that can be used in various environments such as metro lines, shopping malls, carparks, art galleries or even conference centers; essentially anywhere GPS doesn't penetrate. It could...
  • Transistor Placement

  • So that we have our pads/traces setup, the next question is how do we best connect our transistors ?For a refresher on transistors SparkFun has a pretty good tutorial, including amplifier applications, so here just the basics we need for this project.Also,...
  • Manual placement of 78 APA102-2020 chips

  • Here’s a funny queston. How do you solder 78 separate APA102-2020 onto a board? Just in case it isn't clear, each of these has 8 pads (6 active) and each unit only 2mm on each side. These parts are TINY! I normally make SMT prototypes by dabbing the...
  • M10CUBE

  • M10CUBE  (M10 in short) road map This is a teamwork project! It is up to the contributors choice to show their name in public Soon... A PLC software using all M10CUBE I/Os : First PLC software will be  CODESYS (Raspberry Pi runtime is free...
  • First design

  • Let's make a start with describing the design. Before I forget how everything is supposed to work. It's rather complicated. The schematic (at it's current state) can be found in the file section of this project. Note that most IC's are HC in the...
  • Battery-less power monitor

  • I'm going to highlight updates to the original description in italic and add developments to the bottom.  It's currently "working" in so far as it returns numbers:      https://thingspeak.com/channels/1098352     (the...
  • ThunderScope 1000E Rev.1

  • The time had come to make a new prototype, one with all the hardware needed to accomplish the goals of this project! The front end was well proven at this point, and just needed a slight shrink to fit under an off the shelf RF shield. The ADC had always...
  • BioAmp EXG Pill v1.0

  • BioAmp EXG Pill is a small, powerful analog-front-end (AFE) biopotential signal-acquisition board that can be paired with any microcontroller unit (MCU) or single-board computer (SBC) with an analog-to-digital converter (ADC) such as Arduino UNO...
  • TweetyPIE

  • The sample images in the project are the work and copyright of Birdy...When Tweety is run, it opens a dialog allowing you to to load an image. You can do this at any time with the Load Image button. The display shows a preview of what Tweety will do...