-
Archives
- January 2018
- October 2017
- September 2017
- August 2017
- July 2017
- May 2017
- January 2017
- April 2014
- December 2013
- November 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- May 2011
- March 2011
- February 2011
- November 2010
- September 2010
- August 2010
- July 2010
- June 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- February 2009
- October 2008
- September 2008
- August 2008
- July 2008
-
Meta
Category Archives: Electronics
PCB Fabrication – been there, done that.
Well, I did it. I decided to tackle something simple for my first attempt at etching a circuit board. I wanted something with a low parts count, and that was easy to test. I decided on a voltage level shifter … Continue reading
Thinking about PCB creation
So far, I’ve been able to successfully avoid making my own printed circuit boards (PCBs) for all the electronics projects I’ve done. Between Protoboards (letting someone else do the etching), perfboard (which I hate, but end up using), and “deadbug” … Continue reading
Super PID first light
All’s well that ends well. I had a long day out in the shop today, and it was filled with a lot of trials. First, I spent a little time working on the foot for the NJP mount. I’m kind … Continue reading
Posted in Electronics, Making, Woodworking
Tagged CNC, G540, Mach 3, Router, Super-PID
Leave a comment
Bathroom scale v1.2
I’ve been using the XBee-enabled bathroom scale for almost a year now, and it works a treat. Every morning, I hop on, the weight goes to the computer, and the computer dumps the weight reading into a logfile. The server … Continue reading
Sidereal seconds hand
I spent some time thrashing about trying to make sure that the circuit was producing the correct output. I decided to try the Hz counter on my DMM, to see whether it could give me an accurate enough reading. Hooked … Continue reading
Sidereal clock, baby!
…well, I’d need an oscilloscope to confirm, of course. But I converted the Bresenham/Black algorithm to Arduino code, mixed in code from a Timer Interrupts tutorial from the web (I should link to that here), and loaded it up. Worked … Continue reading
Posted in Electronics, Knowledge, Making, Science, Technology
Tagged Arduino, Astronomy, Clock, Sidereal
Leave a comment
Sidereal clock circuit — progress!
I’ve been kicking around the idea of making an accurate sidereal clock circuit for years now. I’ve discussed it all before, but the basic idea is that I want to be able to create a circuit that oscillates at 32857.715Hz … Continue reading
Posted in Computers, Electronics, Knowledge, Making, Science, Technology
Tagged Arduino, Astronomy, Clock, Python
3 Comments
CNC – SuperPID installed into case
I knew that I was getting pretty close to being done with the Super-PID installation. I had a bunch of cable connections to make, and the board was pretty much ready to install into its new case. I decided to … Continue reading
CNC – SuperPID case work
I finally got back to the case for the Super-PID. When I last left the build, I’d finished wiring up the G540 and had put the PC back together. At this point, I needed to start getting serious about getting … Continue reading
CNC, Super-PID installation continues
As I was looking around for something else today, I ran across the spare motor controller for the G540, and decided to install it before I put the computer back together fully. It was another uninstallation of the G540, but … Continue reading