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I am interested in measuring how much energy my solar cells create. This is a "plug-in" system which connects directly to the socket. My question is whether I can use the Fibaro Wall Plug system to measure negative power flows as well?
I asked that question to Fibaro support and this is the answers on 12 sept 2016:
Hello, Unfortunately, there is no way to measure a negative power.
This functionality was not taken into consideration when the device
was designed. I will forward Your suggestion to constructors with
question about possibility of integration. If possible, this
functionality will be added together with the next firmware versions
Ragards
I haven't seen an upgrade since.
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I am trying to create my own openPGP token according to this site, https://nx3d.org/gnuk-st-link-v2/
I bought two ST-LINK V2 clone via Aliexpress but unfortunately my ST-LINK V2s don't have 4 connection points
I think the best way for me is to buy another ST-LINK V2 clone which has the four points. However, I need two weeks for delivery. Therefore I want to try something during the delivery. Don't you have any idea?
Currently I have female-female wires and female-male wires but don't have any other electric tools.
I see four solder pads in the lower left of the first image, right next to the USB connector. The image is too blurry for me to be certain, but I suspect those make up a SWD port. You will need a soldering iron and some fine wire (I recommend 30ga wire-wrap wire) to attach a programmer.
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When you release a new update of an iPhone app, iTunes temporarily stops including reviews from old versions while it waits for users to submit enough reviews of the latest update. Eventually, it starts to include all reviews when calculating your average and displaying your total review count.
When does this transition take place? Do you need to reach a certain number of reviews? If so, what is that number?
It's 5 (ratings, comments are options).
While I say this from personal experience on various app, it's impossible to find an official information about this, but this value is confirmed by others.
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How to calculate the time taken for program to run . By running i mean, between the start and end of a typical go procedure?
I am implementing ant colony optimization algorithm to find the optimal path between a source and a network,and hence need to compute the time taken by the algorithm to run.I am confused about the approach to do it.
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If i had 2+ devices connected to a wifi direct access point would it technically be possible in theory to ascertain the devices physical position in relation to each other?
Thanks
In theory it is possible to get an estimate of their directions to each other when using multiple receive antennas.
Modern notebooks and access points often have multiple antennas for MIMO communication, which increases the reliability and/or the bandwidth. Devices like these could be used for what is called Direction-of-Arrival estimation.
This is a non-trivial topic and doesn't really belong in Stackoverlow but for a mathematical introduction you could look at this paper
Don't see how; location determined via wifi is based on the location of the access point.
not really. You could connect over bluetooth to calculate this. But it's not really reliable. Because you have only the signal strenght for calculating the difference between two devices.
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Based on how things are done for my company, we issue updates very very regularly. Is there a limit or regulation as to how many times you can send a new update submission for your app?
I have looked and googled for anything relating to this issue but haven't found anything yet.
Thanks in advance.
Simple answer. No, there is not. You can submit as many updates as you can produce. Naturally, you will have to wait for acceptance to submit the next version while one is in review though.