Strobe the decoder with your own hands

[Ломан]

Yes, indeed, LM258 and LM358 is almost the same. Should work. Most likely the problem was something else.
Rail to Rail is not necessarily important, what would the output voltage could fall as close as possible to zero in a single supply. I just had a rail to rail in stock.

[Экко]

Yes, that is also not working, which is to be expected. I did not wrap and replaced that part of the circuit differential amplifier. on not inverting input serves 3.8 V from the divider and the inverting with 567. R1=R2=R3=R4 (> 100K) hence the gain is equal to 1 what we need (according to the PDF anyway). have U2 - U1 or the same 0.8 V at maximum signal and 0 V in the absence of

[Ломан]

What exactly doesn't work?
In fact, as described, it should not work that was to be expected. I'm in the diagram led resistor values, not for beauty, but still of some reasons.

[Экко]

honestly, it doesn't work. checked the feeding of the desired voltage on the entrance with controlled sources. integrating the adder does not give what is specified in PDF (all ratings in accordance with the scheme! only OU LM358). the voltage - to-current oddly enough, too, did not really work on small voltages at the input (hundredths of a volt) starts decently lit led, although not full, if you increase already glows on all cylinders though stress has not reached 0.8 V, which shows obvious nonlinearity.
that forced me to replace the adder diffentially, and that with a Converter voltage to current to do have not decided yet will probably replace the Shim or bring to mind, that worked

[Ломан]

First you need to deal with the adder. Assemble a circuit with the values from PDF and LM358 (or 258). Short-circuit input 567 on the ground, measure the voltage at the output of the 567, then at the output of operatsionniy. Still it is possible to measure both inputs of operatsionniy. Is R1 or R2, you can put a variable resistor, and see how changing the output voltage of operatsionniy when you change the resistance. If it changes, then you need to set the output zero.
Then you can deal with the Converter current-voltage. Perhaps he is excited (although I didn't have it. Such schemes I applied so many times in other devices). If you have an oscilloscope, excitement easy to see.
In General, the elementary circuit, her work on the parameters of operatsionniy depends not strongly. If the correct Assembly of all work.

[Экко]

first you need to deal with the adder. Assemble a circuit with the values from PDF and LM358 (or 258). Short-circuit input 567 on the ground, measure the voltage at the output of the 567, then at the output of operatsionniy. Still it is possible to measure both inputs of operatsionniy. Is R1 or R2, you can put a variable resistor, and see how changing the output voltage of operatsionniy when you change the resistance. If it changes, then you need to set the output zero.
Then you can deal with the Converter current-voltage. Perhaps he is excited (although I didn't have it. Such schemes I applied so many times in other devices). If you have an oscilloscope, excitement easy to see.
In General, the elementary circuit, her work on the parameters of operatsionniy depends not strongly. If the correct Assembly of all work.

but why adder? if you want to calculate the difference as in our case it is logical to use a DIFFERENTIAL amplifier. maybe that's why not working

[Экко]

Good news!

For those who have no normal working gate decoder:

The idea to write, and, in fact, already written in the test variant, the program enabling the use of glasses to all AVS programs (BWGen, NP, Shrink, etc..) the Program reads the color of the pixel at the center of the screen, and sends the appropriate pulse to LPT. Make points and connect to LPT really quite simple, here difficulties should not arise.
The program, in my opinion, adequately conveys flash.

All is good, but the LPT port I did not see on computers for five years now...

Yes, but soon I made the option for COM port.. well, motherboard with com and lpt and even now you can buy, it is not strange.. and then (many years ago!) for me this was some breakthrough because it is reminiscent of mind the car - the originals and the sound in the headphones at the same time.

[Экко]

Discovered an unpleasant feature in ispolzovanii lm567 by the above method. When the gate input voltage falls, as "necessary", and in the presence of extraneous frequency of the middle range, it conversely increases, which is strange, therefore, after inversion on my differentialism the amplifier signal will decrease as the sound frequencies and when gate povyshaetsya. That was noticed by me when I started 19200 Hz in the audio editor and otherwise play with the gain and volume on the mixer, and then I paralana take on Skype, and noticed that when there are words the test diode is hung on the exit diagnosis usila off, and the gate reacts adequately. Such things

[Петр Дядищев]

Dear Loman.

Yesterday showed a Mind machine in action. There is a great desire to make homemade.
I understand the topic is already old. But if possible, please lay out again a drawing of the PCB with layout and concept. Or send on soap frog-3d@yandex.ru


Thank you for Your work. With respect Peter.

[Экко]

Sorry that I answer, but where was the scheme of cars?

[димыч]

catch
https://cloud.mail.ru/public/7KYc/f2jqnP1W7
"Dmitri" and Guest - it was me, and wrote about the original pattern-
do not recommend that simple scheme - will be disappointed
in General, it has long been abandoned as there is a real machine

[Петр Дядищев]

catch

See a photo even of the assembled device. Thank you very much, I will collect.

[Алифред]

I'm so sorry... brand New, many do not understand. Now much took. Suggest using "Maidan-machine" and "tune" your body. I understand that this can be done using vision feedback. We need a special glasses with LEDs with which you need to learn to control your body. Sorry if got off topic, but hope for your understanding and assistance. Thank you

[Андрей Патрушев]

In General, as a very working version for homebrew glasses with LEDs that blink in the range of 7-15Hz, with a duty cycle of 40% with a period of the pumping range in 30 seconds. This option was tested in the LIDO (was back) and found that this mode helps to get rid of many diseases of different nature...
LEDs is not a better place front and circumferentially from about 10-50 cents. Center distance can be lay out in front of the mirror.
Good luck!

[Экко]

catch
https://cloud.mail.ru/public/7KYc/f2jqnP1W7
"Dmitri" and Guest - it was me, and wrote about the original pattern-
do not recommend that simple scheme - will be disappointed
in General, it has long been abandoned as there is a real machine

Guys this scheme to mind the car has nothing to do.

[клмн]

Some newer versions of the strobe decoder "does not appear"?
The scheme proposed Loman ω, has the same disadvantages as the previous one? You need to put the volume to maximum, and then enter the volume control before the headphones, etc? Otherwise, too loud, and in front of the LEDs, otherwise too bright? Including the rest of the shortcomings of the original scheme, except that produces no pulses, and a signal proportional to the amplitude of the input signal? And, judging by the last page, it does not work (or not working as it should)? And I do not understand.
They may have something better than "use of integrated circuits non-standard way"? It was the same idea - and put the filter on something there, and amplifier, and that is something all ran into the same scheme are posted on the website bwgen shaggy year.

[Экко]

Some more new version of strobe decoder "does not appear"?
The scheme proposed Loman ω, has the same disadvantages as the previous one? You need to put the volume to maximum, and then enter the volume control before the headphones, etc? Otherwise, too loud, and in front of the LEDs, otherwise too bright? Including the rest of the shortcomings of the original scheme, except that produces no pulses, and a signal proportional to the amplitude of the input signal? And, judging by the last page, it does not work (or not working as it should)? And I do not understand.
They may have something better than "use of integrated circuits non-standard way"? It was the same idea - and put the filter on something there, and amplifier, and that is something all ran into the same scheme are posted on the website bwgen shaggy year.

Honestly I have does not work. Whether I stupid, whether skis do not go.

one more thing: you can write firmware for any good MK and sketch the pattern, the desired digital strobe decoder and the led control to be done using PWM?
napara I have a similar figure will always be better it is a proven fact

[Экко]

Actually, as a very working version for homebrew glasses with LEDs that blink in the range of 7-15Hz, with a duty cycle of 40% with a period of the pumping range in 30 seconds. This option was tested in the LIDO (was back) and found that this mode helps to get rid of many diseases of different nature...
LEDs is not a better place front and circumferentially from about 10-50 cents. Center distance can be lay out in front of the mirror.
Good luck!

Yes, but it's not interesting, I want to have MM immediately collected, still living in the age when microelectronics vengeance

[димыч]

Well, Yes, you can have the Arduino to make come Strawberry Pi, it would wish. But the market is very small, it is not a product of mass consumption. So even the Chinese are not interested.

[димыч]

http://makezine.com/projects/arduino-po ... n-machine/
http://www.nickbits.co.uk/blog/2013/02/ ... led-part-1
http://makezine.com/2008/11/13/the-brain-machine/

[Экко]

The market is small, but what prevents to lay out a Board with firmware? I collected different digital devices with minimum investment in both financial and time. Well the truth is the details are not very cheap we sell but if the book is very beneficial.

[клмн]

What output do I need for this thing? I understand that Board is quite dead, enough to make a watch, or something and nothing serious can not be collected. Well, unless, of course, just blinking lights to do is possible without Arduino. And so to decode the audio stream, probably as quick as anything.
raspberry, well.. cheap. and like it with ADC/DAC and other peripherals?

and the LEDs to do it through PWM?

and LM567 and so with PWM. no? some times the brightness is adjustable.

I'm so going to different digital devices

What?

[Экко]

What output do I need for this thing? I understand that Board is quite dead, enough to make a watch, or something and nothing serious can not be collected. Well, unless, of course, just blinking lights to do is possible without Arduino. And so to decode the audio stream, probably as quick as anything.
raspberry, well.. cheap. and like it with ADC/DAC and other peripherals?

I think 16 MHz is enough. Try Atmega128. it and ADC has.

and LM567 and so with PWM. no? some times the brightness is adjustable.

no **567 no Shima. There is only the key output.

What?

Thermometer, clock

[Экко]

What output do I need for this thing? I understand that Board is quite dead, enough to make a watch, or something and nothing serious can not be collected. Well, unless, of course, just blinking lights to do is possible without Arduino. And so to decode the audio stream, probably as quick as anything.
raspberry, well.. cheap. and like it with ADC/DAC and other peripherals?

Found the answer here developer, I think the question will remain:

Tells the idea how to make a quality gate decoder without tweaks. Can be done even on 8-bit microcontroller, just that he was the ADC number of bits 14-16 bits, the performance is not worse than 16MIPS.
The basis of the algorithm Herzl. Applied to the digitized stream of audio. You can isolate frequencies with a very narrow interval which cannot be allocated neither active filter, or even PLL.
In fact this algorithm is nothing but the discrete Fourier transform for a single frequency.
It is on this principle works the strobe decoder in mindmachine "Navigator".

[ВладимирЖ]

Found the answer here developer, I think the question will remain:

This answer here for 5 years hanging, the page before.