jippie

Eindhoven, Netherlands

wirespeed.xs4all.nl/mediawiki

Age: 45

Do you love your Pets as much as I do? Check the Q&A proposal!

I'm into:

  • Linux;
  • Networking;
  • IT Security;
  • Perl;
  • System integration;
  • Arduino;
  • ATtiny & ATmega Microcontrollers;
  • Analog electronics;
4h
comment Why is this a 7th order circuit?
@RestlessC0bra Not sure if it isn't a simple mesh as you can simply follow the outline of the diagram. In this case you would draw the vector to visualize current more conveniently at the outside of the circuit rather than on the inside of the mesh.
4h
comment Why is this a 7th order circuit?
Since I seem to understand how it works, I guess I've learned something too. Making note of this nice trick in my notebook.
8h
awarded Enlightened
9h
awarded Nice Answer
18h
comment Why is this a 7th order circuit?
As mentioned before I am not familiar with the rule you describe, but they seem to form a mesh. Leftmost capacitor, rightmost capacitor and topmost capacitor. Am I misunderstanding the technique?
18h
comment Why is this a 7th order circuit?
I meant to say that you didn't circle them as part of a mesh.
18h
comment Why is this a 7th order circuit?
I wasn't familiar with the rule as you describe it, but why have you left the topmost and the rightmost capacitors out of your equation?
1d
comment What is the purpose of BAV70 in this schematic?
Which Arduino board? What is the RESET connected to?
1d
comment Amplify Pizzo Buzzer
Part number and picture of the buzzer and the sensor. Where does Arduino come in to play?
1d
comment Op-amp circuit problem - input impedance and its components
Can you draw where the input impedance would be in this circuit?
1d
comment What's the difference between PWM and VPW?
Where did you find the terms? (esp. VPW)?
Aug
30
comment IS circuit and Non-IS circuit
Only the OP can tell what an IS circuit is meant in this question, but intrinsically safe seems a reasonable fit to me.
Aug
28
comment Protect Beaglebone Black from Power Outage
It'll not so much damage the board as in hardware failure, but it may very likely corrupt filesystem in the memory cards. Both the built in and the one in the slot. It may potentially cost you a headache to restore the filesystem, but it can be done. There are ways in Linux to have a read-only filesystem and make changes in a RAM based overlay. But in that case all changes will be lost at reboot.
Aug
28
comment BeagleBone Serial Communication
Opening files without closing them will lead to problems on all self respecting operating systems. It consumes memory and it may block processes waiting for data that is consumed by older processes.
Aug
28
comment Designing of bearings
Maybe a better fit for engineering.stackexchange.com ?
Aug
27
comment Logging lithium battery discharge: why this curve?
BTW if none of your measurements go over 2V5, you should investigate Arduino's internal voltage references. Those are reasonably stable at a given voltage and don't depend on Arduino's power supply voltage. arduino.cc/en/Reference/AnalogReference
Aug
27
comment Logging lithium battery discharge: why this curve?
I think you are looking at temperature effects on the earlier mentioned boost converter during the lifetime of the battery charge.
Aug
27
comment I want my cellphone battery to remain useful for five years; please advise me on how to achieve such a feat
Apart from the fact that the OP is typing about an Android phone, which makes this question a "use of consumer products"-question, I think the question in general is a valid one: How to treat a battery for optimum lifetime. I think the Close-voter's should reconsider, perhaps help the OP improve the text of the question.
Aug
27
comment How to care for a lithium-ion battery so that it will remain useful for as many years as possible
Apart from the fact that the OP is typing about an Android phone, which makes this question a "use of consumer products"-question, I think the question in general is a valid one: How to treat a battery for optimum lifetime. I think the Close-voter's should reconsider, perhaps help the OP improve the text of the question.
Aug
27
comment I want my cellphone battery to remain useful for five years; please advise me on how to achieve such a feat
I personally worry more about the vendor's security patches than the battery. In my experience the battery outlives vendor software support easily.
1 2 3 4 5