Electrical Engineering

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2:31 AM

I'm pretty sure serial communication can't work when Arduinos are plugged in to a USB port.

(Since it's using that.)

Even so, comment
https://forum.arduino.cc/index.php?topic=572710.0
#4 suggests implementing this:

Wire.beginTransmission (deviceAddress);
//Wire.write(0x0E); //pointing Control Register
//Wire.write(0x80);
byte busStatus = Wire.endTransmission();
if(busStatus == 0)
Serial.println("DS3231 Clock Module is Present...!");

else
{
Serial.println("DS3231 Clock Module is not Present...!");
while(1); //wait for ever
}

.
.
Never mind, I'll just make it into a question somewhere...

13 hours later…

deostroll

3:56 PM

If I am to interface an esp01 module to talk to arduino nano over rx/tx (i.e serial) should I do a voltage step up?

2 hours later…

Nike Dattani

5:55 PM

Q: Since MKL is not optimized for AMD hardware, should I use a math library specific to AMD, or would an open-source one be just as good?

The codes for quantum mechanical calculations make heavy use of linear algebra, and it seems most of them delegate this task to time-tested and highly optimized libraries, instead of trying to deploy their own. There is a plethora of options. For example, when we install Gamess-US in Ubuntu GNU/L...

3 hours later…

Nick Alexeev

8:42 PM

I'm looking for an Altium tip.

Altium has a View > Flip board command. It's a way of viewing the PCB from the bottom, instead of the through-board view of the bottom. It flips the PCB view about the vertical axis.

Is there a variant of this command, which flips the board about the horizontal axis?

dustytrash

9:05 PM

I managed to get the 62pin piece off using a lot of solder and a heat gun.
It was actually pretty easy. It melted the plastic on the side a bit(even with tinfoil as protection), but still very much usable.