Thinking_J

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Design products for many industries


Thinking_J

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  • 06.12.2017
  • Streaming to an Airstream
  • Thanks for sharing this... Being in AZ.. and enjoying more remote locations.. good info to know.
  • 05.11.2017
  • How smart is it to deploy smart meters on the smart grid?
  • Steve, - I enjoyed reading the story of your childhood. - I see the value in considering all the limitations and options for com links. But.. .neither are related to the title. and their inclusion diminishes (dilutes?) the subject matter. and I do believe the title subject is worthy of review (How smart is it ... ) The real issue / solutions of what a "smart grid" offers ... a more considered use of the energy available on a given power grid.. can not be accomplished by smart meters. At least not smart meter as they are know today (automated meter reading and remote power disconnect). Smart metering only reduces manpower required for billing of energy. However.. "smart homes" (with some IoT) does offer the option you mentioned of gradual reduction of energy use during periods of a community's peak power demand. Specifically, allowing the individual home owner to automate the delay the use of certain energy consuming appliances (water heater, etc.) when it will most benefit the community's power grid. This can mean the difference of powering up a aux power generation (at a cost of hundreds of thousands of dollars per single cycle) on a given hot afternoon or cold night .. on a grid that is nearing it max output of it's base generation. This has value.. but has nothing to do with smart metering.
  • 05.16.2017
  • Connected lighting may be the IoT killer app
  • A few observations: - Why -in this presentation- are "IoT" solutions assumed to be wireless? The "Internet of things" has applies to it's level of connectivity... not the medium(s) used. - Why is the term "handset" used ("larger market than handsets") , when referencing Cell phones or Smart phones? An old telephone has a handset. - How does wireless residential lighting solutions .. significantly reduce wiring costs without incurring the issues related to increased battery usage? Wireless switch on the wall? I am sure there are retrofitted locations with this, that make sense. But I would question the value of the entire house's lighting becoming depend upon replacement of batteries. Even if the batteries lasted years. - then there is the maintenance and security of any networked devices. The point: much of what has been presented, like the casual misuse of terms in the Media today, has not been carefully considered or is easily dismissed. The devil is in the details. I think wireless of control/monitoring of street lighting has some value. But I have trouble seeing much of the rest of the lighting market as having a "killer app" type impact on "IoT". I also think "IoT" has been a bit over-hyped (and is being subject to rather vague or continuously changing definition and assumptions).
  • 02.03.2014
  • Simple circuit indicates a low battery
  • Clever.. but still have reservations about "wasting" 2ma near the end of the battery's life. I hope sometime in the future.. people will stop drawing in 4 way connection points in their schematics!!
  • 05.27.2010
  • What a cap-astrophe!
  • Reviewing much later, I wondered .. How much ROHS soldering temperatures (quite a bit higher than 60/40 solders).. increased the likeliness of this problem ? (creation of additional micro fractures within the pellet when exposed to even higher temps) Regardless.. a very clever solution to "clear" the micro fractures.
  • 04.01.2013
  • The best electronics-related April Fools' spoof ever?
  • A fairly regular practice among the techs.. on Apr 1st. They would re-wrap the outer coils on a the roll of solder with same diam bus wire. Would appear as the original roll of solder. Generally the joke was applied to the newest / youngest member of the group. Result: the poor targeted tech would try and try to solder to no avail. In one case.. burning (slightly) his own fingers... till he figured it out.
  • 03.17.2017
  • Are streaming sticks the present and future?
  • My biggest concern with cloud based DVRs.. is directly related to one of the primary values a "traditional" DVR provides.. a backlog of material to watch when the internet and live reception are "out". Which happens more often than my service providers would like to admit... (directv/cable internet.. both.. sometimes out for extended periods due to weather or maintenance) Can get a bit annoyed when forced to read a book (I like it to be MY idea) or lose the ability to watch Formula 1 live - often coinciding with the odd/late hours used for maintenance of my internet provider.
  • 02.13.2017
  • Make schematic symbols understandable
  • I would like to add: it is helpful - sometimes- to have your pot symbol to show the direction (CW/CCW) for the ends of the pot's rotational movement. AKA: label the terminals at each end of the resistance .. CW or CCW (not 1 or 3) If you want to be consistent.. label the wiper "W" .. though this should already be obvious.