Recent Posts

51

FPGA / Help on translate schematics to Verilog.

« Last post by caius on Yesterday at 10:46:27 pm »

Hi,
I need to translate into Verilog some KiCad schematics and came across the attached symbols.Is the first a tristate buffer and the latter two AND gates tied to a NOR gate?How to code them in Verilog (well, I use Quartus schematics for now...)?Thanks in advance

52

Security / Re: Microsoft repackages apps with a telemetry .NET wrapper

« Last post by radiolistener on Yesterday at 10:38:19 pm »

Telemetry is fine

No, it's not fine. It's a big danger and large security hole. There is no good purpose for telemetry, it is needed only for malicious purposes, like collecting your private data, selling it and share to ad spammers, scammers and criminals, all without your consent.

You know how they doing it, first they collecting your private data and convince you that this is completely 100% safe, they said that it will be stored it in a very secure and super duper protected storage facility. Then one day it will be stolen by some anonymous hackers and appears on paid black web database. And they said "oh sorry, shit happens, we will work better to avoid it in future"... So, all your private data appears available for all criminals all around the world and none responsible for that...

Some of them even don't hide that they collecting and share your private data, they just said that this data will be collected and shared anonymously, but they don't tell you that it will include a lot of unique ids which allows to de-anonymize your private data very easily.

53

General Technical Chat / Re: ultra sonic transducers

« Last post by pete g on Yesterday at 10:29:36 pm »

hi and thanks for your suggestion. i have found some circuits that i'am pursuing. i've tried several so far, to no avail. several more to go. the problem is to get the range i need.

54

Microcontrollers / Re: Routines to convert binary to BCD in C code

« Last post by cv007 on Yesterday at 10:29:25 pm »

but with an 8-bit microcontroller you have to do the job differently.

Differently, but can still use the tools already in the toolbox.

uint64_t v = readCount();
uint32_t vH = v / 1000000000u;
uint32_t vL = v % 1000000000u;
//skip leading 0's, avr lu is uint32_t
if( vH ) print( "%lu%09lu\n", vH, vL ); else print ( "%lu\n", vL );

55

Repair / Re: Tektronix deprecated free trial options

« Last post by colorburst on Yesterday at 10:27:15 pm »

The TDS family consists of dozens and dozens of models. What scope, specifically, are you talking about here?

56

Beginners / Re: The old "Replace blue LEDs with red LEDs" 7 segment question (74HC595)

« Last post by David Hess on Yesterday at 10:25:01 pm »

When I dimmed LEDs driven by 74HC595s, I controlled the LED's supply voltage which was separate from the logic supply.

I doubt the 74HC595s are failing.  The limit for them is the GND and VCC pin current which should not exceed the datasheet value.

57

RF, Microwave, Ham Radio / Re: High bandwidth FM signal generation

« Last post by David Hess on Yesterday at 10:17:56 pm »

1. Generate FM signal with 300-400MHz bandwidth between 500MHz and 6GHz carrier frequency.

Do you mean occupied bandwidth or modulation bandwidth?

58

Thermal Imaging / Re: Help with "80 series Thermal imager" by insight vision services

« Last post by Fraser on Yesterday at 10:12:37 pm »

That’s is exactly what I need 

I will send you a personal message with my details 

Fraser

59

General Technical Chat / Re: Looking for reverse osmosis with less than 25% waste

« Last post by strawberry on Yesterday at 10:10:43 pm »

to collect Mg and Ca much faster use two membranes and separate ore with compressed air at the same time cleaning memrane

60

Projects, Designs, and Technical Stuff / Re: Ebay 75mm Slide pots - Interesting Taper

« Last post by electr_peter on Yesterday at 10:07:36 pm »

Linear pots are unusual in audio applications. Sliders intended to be used with motor control have two potentiometers inside - linear for position and non-linear for audio.