bravo22

40 ms·

1. 361.▲
   by bravo22 12y ago

   You are right they don't need to be, but from a building code perspective you can't bury the controller behind a wall. You have to make them accessible behind some kind of a wall plate so for aesthetics reasons people will likely
2. 362.▲
   by bravo22 12y ago

   I'm guessing you're from Spark Devices?
3. 363.▲
   by bravo22 12y ago

   I prefer IETF CoAp standard. Look it up. Much better I think.
4. 364.▲
   by bravo22 12y ago

   It looks like a transport, which has been around for a long time. 6LowPan has certainly been. From what I read, it doesn't give you things like send command X to dim lights. Zigbee HA already defines those but everyone violates them in
5. 365.▲
   by bravo22 12y ago

   Google is doing this so they can give you another reason to buy Nest -- it now acts as a bridge! Yale is doing this because they have locks that already have Zigbee. ARM is doing this to sell chips. They have their fingers in a million diff
6. 366.▲
   by bravo22 12y ago

   Why don't I just grab a conductive pen and draw my circuit??
7. 367.▲
   by bravo22 12y ago

   A number of Qalcomm Atheros chips like AR4100P. Gainspan's GS1011 and their newer GS2000. Pretty much anyone supporting PS-POLL should get around that range. Electric Imp gets close to that but they are over it a bit I believe.
8. 368.▲
   by bravo22 12y ago

   Paul, thanks for responding. I didn't accuse you of used-car salesman tactics. I was pointing out that nowhere on your main product page is WiFi sleep mode, or knock-to-wake are mentioned. I think it is a fair point and has significant
9. 369.▲
   by bravo22 12y ago

   Unfortunately not but there are many product development companies out there that can help you.
10. 370.▲
    by bravo22 12y ago

    Good points! You definitely need someone that has product development experience.
11. 371.▲
    by bravo22 12y ago

    Paul, thanks for jumping in. 1) I wasn't misled by PS-POLL. I used 2mA as a conservative estimate. I know you can get a lot worse. That's why I think instant WiFi unlocking isn't/wasn't realistic. A lot of your user
12. 372.▲
    by bravo22 12y ago

    They use a one way clutch if I recall correctly.
13. 373.▲
    by bravo22 12y ago

    Gotcha. Thanks for the info.
14. 374.▲
    by bravo22 12y ago

    What's your new doorbell system? Is there a brand name? How's the battery life on door bot?
15. 375.▲
    by bravo22 12y ago

    Thanks! I figured I should stop being a lurker at some point. I'd say almost any EE that had experience in product development would have been able to call out these issues. Battery/power issues are fundamentals. When I first saw
16. 376.▲
    by bravo22 12y ago

    Good points. The skipping of beacon intervals is called PS-POLL and is why I said 2mA otherwise it is closer to 100mA -- which for example is what TI's CC3000 module burns since it doesn't have PS-POLL. I agree that there are alte
17. 377.▲
    by bravo22 12y ago

    Both but mostly knowing the pitfalls ahead of time, i.e. experience and knowledge.
18. 378.▲
    by bravo22 12y ago

    I think that's what he is saying but I disagree with his numbers. For 10 units machining plastic costs a lot of money. But you wouldn't do that for 1000 prototypes. You would use something like vacuum casting to make the housings
19. 379.▲
    by bravo22 12y ago

    I agree. I'd say it was overconfidence more than incompetence; coupled with a slightly unhealthy dose of overpromising/misleading on key features.
20. 380.▲
    by bravo22 12y ago

    http://www.californiaconsultants.org/Home.cfm is a good place to find reputable EE consultants in the area. The "pitfalls" Lockitron encountered were so obvious, from the get go than a decent EE reviewing things w
21. 381.▲
    by bravo22 12y ago

    There are product dev companies everywhere but I doubt any would go on record to vet anything. A good lawyer could hold them legally responsible. There are so many, many caveats that they wouldn't want to be legally held accountable fo
22. 382.▲
    by bravo22 12y ago

    You recharge your phone's battery. :) Best WiFi today will consume about ~2mA when in standby. They are using ElectricImp which is a little worse. People often look at "sleep" current of a WiFi module and think "oh boy I
23. 383.▲
    by bravo22 12y ago

    Agree 100%. Another common approach to further mitigate manufacturing reliability issues is to contract a single vendor to make and assemble the mechanical unit. Basically everything from input shaft to output shaft goes into a box. You put
24. 384.▲
    by bravo22 12y ago

    Here are some other reasons: 1- WiFi drains battery fast, therefore advertising instant WiFi unlocking was foolish, if not purposefully misleading from the beginning. (Look through their posts on HN when Lockitron was first announced and yo
25. 385.▲
    by bravo22 12y ago

    Not sure where in the article specifically you are referring to. What I saw: "The software uses wireless beacon-driven technology that operates in tandem with smartphones based on a user’s micro-location to exchange data and informatio
26. 386.▲
    by bravo22 12y ago

    You are correct. Think of iBeacons as kinda of like GPS. They feed you data, not the other way around. You can certainly have more advanced capabilities w/ BLE -- similar to what you suggested -- but you'd have the single master p
27. 387.▲
    by bravo22 12y ago

    I think Apple doesn't need to give you many color choices because the "bumper" protector market essentially takes care of that.
28. 388.▲
    by bravo22 12y ago

    Got a link to any of these forums? Would love to know more.
29. 389.▲
    by bravo22 12y ago

    Ok.
30. 390.▲
    by bravo22 12y ago

    Sure.