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andrewcchen

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The cores don't serve the same purpose as the M1 cores. M1 is optimized for single thread at the cost of die size (and a bit of power). I don't have exact numbers, but say the apple M1 core takes 1.5x the die area of N2, the you'd get better performance by putting in 1.5x the number of N2 cores.

Digikey pricing is not indicative of actual volume pricing, especially for FPGAs where they are often many times overpriced when buying from distributors. I doubt the board is sold at an loss, probably sold at a small profit, not that's it's really significant for a low volume dev board.

MOnSter 6502 5 years ago

The trick to doing smd soldering is reflow. On all budget all you need is a hot air gun, if you put solder and flux on the pads manually before placing the components. With a stencil and solder paste you can save the time tinning the pads, and placing a component every few seconds is quite possible. So if you work really hard and quite possibly break your back you can assemble this board in a day :)

Rotary Cellphone 6 years ago

It takes a combination of software and hardware to get good power consumption. In this case, assuming the author has implemented sleep modes on the microcontroller, it's probably the 3g module being not very power efficient.

I'd love to know what makes this theorem so useful, but I doubt I will understand much considering this is in an area of math I know almost nothing about.

I imagine it must be very hard to explain the theorem while making it accessible and interesting to the general public.

Bitcoin appears to have greater staying power than most nations and currencies in history.

I would not make that statement so soon. Bitcoin has only existed for 10 years. Most nations and currencies, at least in recent history, have lasted for much longer than that.

The booster's trajectory targets offshore or away from droneship in case landing burn fails. The landing burn brings the booster onto the landing pad. See CRS-16 where the booster landed in the water when the booster lost roll control when the grid fins failed.

They say on their website "Atheros 802.11n w/ Two Antenna"

Wi-fi cards are actually a huge issue if you are concerned about privacy. You have no idea what the firmware is doing, and it has access to your entire memory through the pcie interface, and the internet at the same time.

I modified a kernel module to use the wifi enable/disable button on my hp laptop as a normal button. For some reason the bios sends an acpi event when the button is pressed, instead of just having it as a normal keyboard key, so there is a kernel driver to handle it.