NBC News has reported the US Government may implement regulations in the coming days that would require anyone who buys an unmanned aircraft system to register that device with the US Department of Transportation.
The most simplistic interpretation of this news is that anyone with a DJI Phantom or a model aircraft made out of Dollar Tree foam board would be required to license their toys. This may not be the case; the FAA – an agency of the US DoT – differentiates between unmanned aircraft systems and model aircraft.
This will most likely be the key thing to watch out for in any coming regulation. The FAA defines model aircraft as, “an unmanned aircraft that is capable of sustained flight in the atmosphere; flown within visual line of sight of the person operating the aircraft; and flown for hobby or recreational purposes.” Additionally, the FAA may not make any regulations for model aircraft. While this means planes and quads flown without FPV equipment may be left out of this regulation, anything flown ‘through a camera’ would be subject to regulation.
Macetech’s ChronoDot is a Real Time Clock module for projects requiring highly accurate time keeping and measurement. The ChronoDot uses the DS3231 chip, which features a TCXO to compensate for variations in temperature which affect normal oscillators, like the ones in most microcontrollers. The DS3231 uses simple I2C commands and registers for storing and retrieving time, but also features a variable output that goes all the way down to 1.000 hz for low power, interrupt style timekeeping applications. With the provided watch battery, the ChronoDot can keep time in idle mode for up to 8 years.
Normally the ChronoDot comes mostly assembled, requiring you to only solder on the watch battery. However, due to a manufacturing mistake, Macetech is selling a version with the header pins on the wrong side they call the ChronoDoh. This module is currently nearly half off the regular price of $14.99, which makes it a great low cost addition to a project. Macetech has sent us a couple of these modules to demonstrate how functional they still are.
Continue reading “Parts: ChronoDot RTC Module (DS3231)”
FasTrak is the electronic toll collection system used by the state of California. Motorists can purchase a toll transponder for ~$26 and link the serial number with a debit account to have their tolls deducted automatically. Today at Black Hat in Las Vegas, security researcher [Nate Lawson] presented not just the privacy problems with FasTrak, but why absolutely no transaction from the tag should be trusted.
Continue reading “Black Hat 2008: FasTrak toll system completely broken”