Dwolb

63 ms·

631.
by Dwolb 13y ago
Are you sure you're able to legally transmit at 1km. Had thought antenna gain + transmit power had to be around 0 dBm, at least for 434MHz. Hadn't seen the rules for 900MHz though.
632.
by Dwolb 13y ago
Wifi operates at a higher frequency and data rate, which both reduce range.
633.
Ask HN: What is an example project that could get me hired?
1 points by Dwolb 13y ago|1 comments
634.
by Dwolb 13y ago
From an EE perspective, benchmark tests should include power consumption and thermal profile measured by third party, calibrated equipment. There are some errors induced through the act of measuring, but power consumption and thermal profil
635.
by Dwolb 13y ago
Mentioned previously in this thread, better is a broad term. From a customer perspective, there are thousands of use cases to look over and examine. Maybe one use case could be worth exploring and then have the concept applied to other use
636.
by Dwolb 13y ago
The post contains a fact, but is there a recommendation? Is the suggestion to cease all electric vehicle R&D, marketing, and consumer adoption? Curious.
637.
by Dwolb 13y ago
On my phone right now so I can't put this analysis on paper, but this feels a lot like looking at the associative property of addition. i.e. the author regrouped the data to come up with the same result
638.
by Dwolb 13y ago
Would suggest checking out Tindie. It's a marketplace for hardware makers.
639.
by Dwolb 14y ago
Agreed here. Guess I'm thinking the best way to get this functionality into homes though is with a board spin of a embedded linux platform (i.e. RPi) that people could install into a wallbox. A bluetooth speaker-like package would probably
640.
by Dwolb 14y ago
Agreed with this sentiment. Something that could ease its way into the home improvement segment is an embedded linux device with microphone input, speaker output, powered off 120VAC, fits in a wall box, and input for more microphones to for
641.
by Dwolb 14y ago
That's a good number for IOD (ignition off draw). Radios, excluding screen aim to be sub-mA range. Most other electronic components are sub-100uA
642.
by Dwolb 14y ago
It's ok to fail. In fact in improv, failure is an important introductory lesson. Without reducing fear of failure by actually failing, improvising would be impossible except for the bravest of souls. One basic lesson goes like this: make up
643.
by Dwolb 14y ago
We had one particularly bad customer experience on some wireless lighting control systems (power electronics and RF in a tight package) where some nodes would randomly drop from the network and couldn't be controlled. After two sets of embe
644.
by Dwolb 14y ago
Here is an article essentially discussing this issue: http://www.edn.com/design/systems-design/4330078/EDA-tools-f... It boils down to economics: 3rd party companies that make EDA tools for the semiconductor industry can't tweak and sell
645.
by Dwolb 14y ago
This is a topic that comes up in improv a lot - actors want to play a character of a given background (gender, orientation, ethnicity), but don't want it to come off as offensive. The fact is, it's always possible to be offensive no matter