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News - Free Day 2012 is Under Wa… | about 5 months ago

The Captchas are awful. How about next year you just let everyone login to their account and click the ‘Enter me in the drawing’ button. Then randomly give them out.

Tutorial - Nest Teardown | about 5 months ago

Thanks for the info. Would be great if they decided to open up some APIs… I’d buy one in a second. This has some great potential for the hackers one way or another.

Tutorial - Nest Teardown | about 6 months ago

Can you interact with this thing directly over WiFi, or does everything have to be done through their website? Something like sending UDP packets, or even a telnet-type command interface?? Would love to be able to query for temp/hum for logging purposes, and get notification of motion and integrate into home security. What about pushing messages to the LCD, and having them displayed?

Product WRL-09333 | about 2 years ago

I’ve had success connecting to the WiFly in ad-hoc mode from a 1st gen iPod Touch, and an iPhone. I’ve used it with a simple embedded web-server, for serving up pages for configuration/data-views/control/etc. Ad-hoc networks can be a pain to setup in general, but it was actually pretty easy from the iPod, and it even remembers the network and can connect automatically to it when it’s available. I think it’s better than a bluetooth approach for interacting with hardware, since you’d really need a native app on your iPhone/Blackberry/Android to interact with it, and with this any device with WiFi can (theoretically) interact.

Product SEN-09801 | about 2 years ago

The description above mentions that they pulled AD0 high, so 0x69 is the expected address.
Then see Table 3.1 in the manual. -13200 represents 35 celsius, then every 280 from there is another degree celsius. (Admittedly a bit confusing to decipher from the table).
So code would look like:
tempC = 35.0 + ((rawVal + 13200)/280.0);
Also note that you divide the gyro values by 14.375 to get degrees per second.