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| bio | website | |
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| age | ||
| visits | member for | 1 year, 3 months |
| seen | May 4 at 15:55 | |
| stats | profile views | 46 |
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Feb 14 |
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Pull down resistor for Arduino input to read LOW when no voltage from switch note that the AVR microcontroller has internal pullup resistors that you can enable. so you can connect the button between input and 0V and save one external component. however, you must change the software so that a low level input is recognized as a button press. |
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Feb 6 |
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Suggestion to electrically disable a Faraday Cage @vicatcu WTF? stop reading my mind! |
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Feb 6 |
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Suggestion to electrically disable a Faraday Cage Make your faraday cage out of a material that can be changed from conducting to non-conducting via an electrical signal (or something that can be triggered electrically, such as temperature change). I'm sure there must be something. But I guess the mechanical solution of opening the cage would be easier, though. |
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Jan 24 |
awarded | Yearling |
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Jan 22 |
awarded | Nice Answer |
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May 25 |
awarded | Citizen Patrol |
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May 24 |
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How do I pick a part that goes into a breadboard when I order it? 555 - number of the bistable |
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May 23 |
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Documentation on `avr-as` there is also avra.sourceforge.net which is what I use. |
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May 15 |
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Stealing energy from radio towers or power lines i'd rather gather energy from that huge object that emits electromagnetic waves in the range of IR, visible light, and even UV. unfortunately, it's only available at day. |
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May 15 |
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Why can't a feedback network use a capacitor? from what i learned by reading the answer to your other question, that would lead to infinite amplification for the DC part, thus overriding any AC signals. |
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May 15 |
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Help understanding AVR execution timing compiling and then disassembling your code in my head leads to out DDRE, 0xFF; nop; sbi PORTB, 2; nop; cbi PORTB, 2; nop; sbi PORTB, 2; nop; cbi PORTB, 2; since these are all 1-cycle instructions, the time between output changes should be 2 cycles (one for the nop, one for sbi/cbi). however, your compiler might optimize the nops away or be not smart enough to use sbi and cbi |
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May 15 |
answered | Help understanding AVR execution timing |
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May 15 |
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hardware component for playing mp3 what kind of hardware does the algorithm run on and how is it connected to the mp3 player and speakers? maybe you can do the mp3 decoding on there! |
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May 15 |
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What is the most monetarily cost effective way to buy computing power? @sharptooth good point. i once built a small cluster as a hobby project. the first prototype was severely limited by the network connection. you definitely need to do benchmarks, tests and probably prototypes for testing how it scales. |
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May 15 |
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Rules and guidelines for drawing good schematics just place all parts somewhere on the sheet in random orientations and connect them using net labels only. electrical engineers love puzzle games! |
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May 15 |
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Why won't a 1.5V (or 1.2V) battery give an electric shock? @abdullahkahraman the tounge is much more sensitive to small currents. |
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May 14 |
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How do electrical body fat detector work? All resources (such as en.wikipedia.org/wiki/Bioelectrical_impedance_analysis) I found mention AC, some also talk about phase-angle measurements. but reading your answer again, it mentions neither DC nor AC, maybe you could add that AC is required. |
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May 14 |
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How do electrical body fat detector work? It's not a simple DC current measurement (this would be dominated by the skin's surface resistance, like in a "lie detector"). It seems to involve impedance at different frequencies. |
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May 14 |
answered | Which way to draw diode in a circuit diagram |
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May 14 |
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Arduino Mega run on 2 AA batteries? well.. you could use a boost converter. |
