davedarko wrote in his LED displays on Arduinos – a collection project log on hackaday.io:
With 4 of HP QDSP-6064 bubble displays in a drawer I felt ready to do something with them and the “Clocks for Social Good” – call on hackaday.com finally got me going
The design files are available on GitHub:
Kevin Rye decided to build a 15 inch long digital clock after acquiring these 3 inch 7-segment displays. He documented the project from start to finish:
I picked up these sweet LUMEX S101D22TR 7-Segment LCDs the other day.
The PCBs for the hours, minutes, and seconds display modules are identical. They’ll just be wired differently.
On the driver boards, data flows in from the left out to the next section on the right.
The source files can be downloaded from:
Knudt designed this board to connect an inexpensive dual-band GSM module with to an Orange Pi or Raspberry Pi:
The config files and EAGLE design files can be downloaded from the Hackaday.io project:
UPDATE 2016-10-24: Dave Conroy of CRT Labs will present the PiAQ tonight at Chicago hackerspace Pumping Station: One
National Association of Realtors’ CRT Labs in Chicago has developed a Raspberry Pi HAT to make information about the air people are breathing more accessible:
Open Source Indoor Air Quality Sensor for Raspberry Pi
Measurement Points:
Connectivity:
Schematics and Eagle CAD Files are on GitHub:
/PiAQCRTLabs has shared the board on OSH Park:
For the next post in the Creating A PCB series, we’re going to continue our explorations of Eagle. In Part 1, I went over how to create a part from scratch in Eagle. In Part 2, we used this part to create the small example board from the Introduction. This time around I’ll be going over Design […]
via Creating A PCB In Everything: Eagle DRC and Gerber Files — Hackaday
Catherine Holloway created this board to interface Mitutoyo dial indicators with a Teensy:
Teensy Mitutoyo InterfaceMitutoyo dial indicators can measure small displacements down to micron levels. I use them to calibrate motors used in quantum optics experiments, where every micron is several femtoseconds in the life of a photon.
The design files and source code are available on GitHub:
CatherineH/teensy-mitutoyo-interface
CatherineH shared the board on OSH Park:
In the last (and first) post in this series, we took a look at Eagle. Specifically, we learned how to create a custom part in Eagle. Our goal isn’t just to make our own parts in Eagle, we want to make schematics, boards, and eventually solder a few PCBs. The board we’ll be making, like…
For the first in a series of posts describing how to make a PCB, we’re going with Eagle. Eagle CAD has been around since the days of DOS, and has received numerous updates over the years. Until KiCad started getting good a few years ago, Eagle CAD was the de facto standard PCB design software…
Jarek Lupinski has posted an update for his Teensy E-Paper Shield project:
I finished writing a few helper functions that should get you up and running with the Epaper display shield. It can be easily integrated into a larger graphics library like Adafruit’s GFX for more intensive work.
The source code can be downloaded from Hackaday.io:
RPUadpt is a shield for multi-drop serial communication of MCU boards (Irrigate7, PPUno, PuseDAQ). Serial lines are differential pairs. It has Full Duplex RS422 (RX/TX) and out of band Half Duplex RS485 bus manager that may (TBD) help with serial bootloaders (optiboot and xboot) in a multi-drop system.
epccs has shared the EAGLE board on OSH Park:
OSH Park 