Category Archives: tracker

Real-Time Planet Tracker With Laser-Point Accuracy

Posted on by

Space. The final frontier. Unfortunately, the vast majority of us are planet-locked until further notice. If you are dedicated hobbyist astronomer, you probably already have the rough positions of the planets memorized. But what if you want to know them exactly from the comfort of your room and educate yourself at the same time? [Shubham Paul] has gone the extra parsec to build a Real-Time Planet Tracker that calculates their locations using Kepler’s Laws with exacting precision.

An Arduino Mega provides the brains, while 3.5-turn-pan and 180-degree-tilt servos are the brawn. A potentiometer and switch allow for for planet and …read more

Continue reading Real-Time Planet Tracker With Laser-Point Accuracy→

Fitness Tracker Teardown is a Lesson In Design for Manufacture

Posted on by

If the trends are anything to go on, after the success of Fitbit we are nearing a sort of fitness tracker singularity. Soon there will be more fitness trackers on wrists and ankles then there will be stars in the sky. We will have entire generations who will grow up not knowing what life is like without the ever-present hug of a heart monitor strapped across their chest. Until then though, we can learn a bit of design for manufacture from this excellent teardown of a watch shaped fitness tracker.

This tracker has a nice round e-paper screen, which could …read more

Continue reading Fitness Tracker Teardown is a Lesson In Design for Manufacture→

Dual Axis Solar Tracker with Online Energy Monitor

Posted on by

[Bruce Helsen] built this dual axis solar tracker as one of his final projects for school.

As can be experimentally verified in a very short timeframe, the sun moves across the sky. This is a particularly troublesome behavior for solar panels, which work best when the sun shines directly on them. Engineers soon realized that abstracting the sun away only works in physics class, and moved to the second best idea of tracking sun by moving the panel. Surprisingly, for larger installations the cost of adding tracking (and its maintenance) isn’t worth the gains, but for smaller, and especially urban, installations like …read more

Continue reading Dual Axis Solar Tracker with Online Energy Monitor→

Urgent: F184255 SAFESTORE HLDGS PLC/ HPE STRAN Technologies – word doc macro malware leads to #Dridex

Posted on by

Last revised or Updated on: 22nd March, 2016, 4:44 PMFollowing on from THIS malspam run this morning with almost identical subjects is an email with the subject of Urgent: F184255 SAFESTORE HLDGS PLC/ HPE pretending to come from random names and email addresses  with a malicious word .doc and an .RTF  attachment  is another one from the current bot runs which try to download various Trojans and password stealers especially banking Trojans like Dridex or Dyreza and ransomware like Locky, cryptolocker or Teslacrypt. They are using email addresses and subjects that will scare or entice a user to read the email and open the attachment. A very high proportion are being targeted at small and medium size businesses, with the hope of getting a better … Continue reading → Continue reading Urgent: F184255 SAFESTORE HLDGS PLC/ HPE STRAN Technologies – word doc macro malware leads to #Dridex→