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3774 Results for "Reverse Engineering Blood Glucose Monitors"

  • BPW34 solar powered led watch
  • Details     from BPW34 solar powered led watch
  • I understand that this not practical watches, I calling my product"party watch", not for daily usage but good eye catcher on specialoccasions.Standby time is acceptable, in good condition more than 7 days. Ifanybody think that 5 minutes run-time is low?...

  • Multiple Problems
  • Log     from Z80 Computer
  • I had a slightly frustrating weekend on the Z80 project. Since I switched to using VHDL instead of schematics, everything stopped working.Of course, I had finished wiring up the RAM chip as well, so I wasn't sure if that was the problem, or if I had...

  • Toy BASIC Computer
  • Details     from Toy BASIC Computer
  • This project pretty much worked in reverse from how one would normally do a design. Normally, you'd select the processor (and other hardware) based on the required functionality. In this case, I had some spare processors and so defined the functionality...

  • OPC-1 gets subroutines!
  • Log     from OPC-1 CPU for CPLD
  • We made an update, adding a link register and three instructions, which give us subroutine capability. There's still no stack!The cost of this update, in fitting in the CPLD, was one address bit, so we move down from a 12 bit address space to 11 bits.JSR...

  • Duplo (Lego) Child's Clock

  • Details     from Duplo (Lego) Child's Clock
  • The clock uses a PIC16F1829 for timekeeping and display control, and uses 3 x eBay MAX7219 matricies for an 8 x 24 display. It has a LDR based light sensor for auto dimming, and has a special animation feature that displays between 0530hrs and 0630hrs...

  • Tetris Light - Battery Mod
  • Details     from Tetris Light - Battery Mod
  • First I opened up the large tile, which contains the default connector and the switch. A quick reverse-engineered schematic of the included PCB helped me to descide how I would modify it with least effort.I wanted to use the original electronics as much...

  • PCB delivered !
  • Log     from Numitron Hexadecimal display module
  • I just received the boards and did a thorough quality check. Thank you to the sponsor @Fredrik Högberg ! It seems that it could be made on bakelite :-) Notes for later : PCB trace widths : OKClearances for mounting holes : OKClearances for...

  • Locking Mechanism
  • Log     from Educational Puzzle Box
  • The box needs a servo-activated lock to allow it to open at the correct point.The simplest solution would have been a servo rotating a catch into a hole inside the box, similar to how has been implemented for many reverse-geocache projects.But I decided...

  • Smart car radio
  • Details     from Smart car radio
  • - The smartphone is connected to a (pretty crappy, but only 10 bucks) bluetooth audio receiver which is connected  with a stereo jack to the cd charger input of my Alpine car radio. I had nothing to modify on this part. - The display receives the...

  • Session #2: Air Support
  • Log     from Thermoforming Machine Rebuild
  • The bottom cabinet of the machine held most of the air equipment. There were two motor driven pumps: a vacuum pump and an air compressor. (Or jokingly: one sucks and the other blows.) They each have an attending accumulator tank. It was worrisome...

  • Piezos are in!
  • Log     from Playing with Power Ultrasonics
  • I bought two different transducers: an el-cheapo langevian and a proper Branson converter. Both are 40kHz units.Not much to see here.  The piezo is 4.4nF. Here is a first draft of the schematic of the single layer driver board, with as many components...

  • Inspirational
  • Log     from A Better Turret
  • Inspirational I found this doing an Internet search of "Animatronics": Source: "See RoboBones and RoboHead" (http://www.animatronics.org) Back to Work Elected not to shunt the external Nano power supply to the motor power supply. The external power supply...
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