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Type: Posts; User: andre_teprom

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1. ## Thread: Microcontroller pin not working after some time.

by andre_teprom
Replies
4
Views
108

### Closed: Re: Microcontroller pin not working after some time.

The current driving the 7-segments display sounds comfortably dimensioned, so it is unlikely that there was a burning problem, except of course due to improper handling when energized; frankly, I...
2. ## Thread: framing specifications for a control problem

by andre_teprom
Replies
1
Views
177

### Closed: Re: framing specifications for a control problem

Each set of specifications determines one or more methods to solve the problem that can be done by graphic and/or algebraic approaches. There is no "simple example" given such a broad question.
3. ## Thread: Electromagnetic interferences - how to handle?

by andre_teprom
Replies
2
Views
261

### Closed: Re: Electromagnetic interferences - how to handle?

Without knowing exactly what the circuit is, it is difficult to make a more accurate guess, it may be for example that you have not connected anywhere a high impedance input, having a floating static...
4. ## Thread: Component values on 2-pole 2-zero compensation

by andre_teprom
Replies
2
Views
243

### Closed: Re: Component values on 2-pole 2-zero compensation

For practical purposes, the transfer function of this circuit is simplified to the op amp inverter topology, so the gain would be defined as ((1/sC2 + R2) // C1) divided by ((1/sC3 + R3) // R1). ...
5. ## Thread: Freq computation without DIV instruction for 8bit MCU

by andre_teprom
Replies
7
Views
393

### Closed: Re: Freq computation without DIV instruction for 8bit MCU

Your requirements are restrictive; you could consider setting timer scaler to a interval between acquisitions as a rational number power of two, so that division could be replaced by a simple right...
6. ## Thread: Components nomenclature on PCB silkscreen

by andre_teprom
Replies
2
Views
223

### Closed: Re: Components nomenclature on PCB silkscreen

Whenever there are repetitions of circuits in the project, it is preferable to encapsulate them in a block, repeating it as many times as necessary, prefer automation of the component designator...
7. ## Thread: STM32F103VET6 and CH340G

by andre_teprom
Replies
5
Views
478

### Closed: Re: STM32F103VET6 and CH340G

Do you see it as a COM device ?

157410
8. ## Thread: STM32F103VET6 and CH340G

by andre_teprom
Replies
5
Views
478

### Closed: Re: STM32F103VET6 and CH340G

It is likely you don`t have the driver installed.
Refer to this link:

https://www.arduined.eu/tag/ch340g/
9. ## Thread: How the washing machine Automatic Load Sense works?

by andre_teprom
Replies
17
Views
1,265

### Closed: Re: How the washing machine Automatic Load Sense works?

If you had the curiosity to search on the Web for the terms "washing machine auto sensing" would find that it is related the way as water is filled into drum, assuring that all the pieces will be wet...
10. ## Thread: How can we send multiple bytes via UART?

by andre_teprom
Replies
10
Views
689

### Closed: Re: How can we send multiple bytes via UART?

Seems like your are trying to cascade bytes in a dynamic structure such as overloading parameters, which is a resource not available in C language, but rather in C++. Is it the case?
11. ## Thread: How the washing machine Automatic Load Sense works?

by andre_teprom
Replies
17
Views
1,265

### Closed: Re: How the washing machine Automatic Load Sense works?

Review reply #7: Wet clothes are much heavier than dry, so the weight of dry clothes is negligible in the laundry process. Again: Water absorbing capacity is perhaps the most relevant factor in this...
12. ## Thread: How the washing machine Automatic Load Sense works?

by andre_teprom
Replies
17
Views
1,265

### Closed: Re: How the washing machine Automatic Load Sense works?

Do you really think there exists any kind of sensor capable to detect the fabric material? In addition, are you assuming that people will always put clothes made with the same fabric at each washing...
13. ## Thread: Looking for Mentor Footprint

by andre_teprom
Replies
2
Views
439

### Closed: Re: Looking for Mentor Footprint

Haven`t you search elsewhere?

https://www.snapeda.com/parts/MT41K256M16HA-125%20AIT:E/Micron%20Technology/view-part/?ref=digikey
14. ## Thread: How the washing machine Automatic Load Sense works?

by andre_teprom
Replies
17
Views
1,265

### Closed: Re: How the washing machine Automatic Load Sense works?

These washing machines do not sense 'cloth load'; there are pressure sensors which detects the water level, and this somehow suffice for a rought estimate. As said, many of these equipment have...
15. ## Thread: How the washing machine Automatic Load Sense works?

by andre_teprom
Replies
17
Views
1,265

### Closed: Re: How the washing machine Automatic Load Sense works?

From the above, seems like you are considering "cloth load" as the mere insertion within the washing machine drum; you migh know that dry clothes are significantly lighter if compared to wet, which...
16. ## Thread: Simple C code for 50 point moving average filter using Buffer

by andre_teprom
Replies
4
Views
565

### Closed: Re: Simple C code for 50 point moving average filter using Buffer

Another useful concept you'll need to know during code implementation is the circular buffer, which can be used to add/remove samples, one per time, keeping the last 49 ones.
17. ## Thread: Writing one file into another in C++

by andre_teprom
Replies
15
Views
3,095

### Closed: Re: Writing one file into another in C++

No, I never used the ofstream method, and have no idea how this works.
BTW, why not starting with a even simplest approach, such as suggested on #11?
18. ## Thread: Writing one file into another in C++

by andre_teprom
Replies
15
Views
3,095

### Closed: Re: Writing one file into another in C++

I did not spent much time to find a possible solution, few minutes actually, searching for tips on the Web, and added the constraint you have defined, exactly as Brian suggested above at post #4.
...
19. ## Thread: Writing one file into another in C++

by andre_teprom
Replies
15
Views
3,095

### Closed: Re: Writing one file into another in C++

Review fundamentals of C++ programming, it is not difficult to find any reference.

http://www.cplusplus.com/reference/fstream/fstream/open/

Please chose some of them and then ask specific...
20. ## Thread: Writing one file into another in C++

by andre_teprom
Replies
15
Views
3,095

### Closed: Re: Writing one file into another in C++

Instead of asking for something that does exactly what you want, why don't you look for an example that makes the exact copy, and then seeks into the code for the part that scan each byte and then...
21. ## Thread: What are sequence to initialize HD44780

by andre_teprom
Replies
18
Views
1,305

### Closed: Re: What are sequence to initialize HD44780

This is the bit mappings of the data/control pins, necessary to configurate and or opperate the LCD; there is no much to 'understand' there, just set these pins acording timmings and order defined at...

by andre_teprom
Replies
21
Views
1,719

### Closed: Re: Ferrite bead usage in ADC's

This kind of filter only would make sense if it were made with a common mode choke, but both component designators FB1,2 are clearly for distinct (uncoupled) devices. It is likely someone copied the...
23. ## Thread: Microcontroller Simulator

by andre_teprom
Replies
1
Views
445

### [ARM]Closed: Re: Microcontroller Simulator

Regardless of appraising any simulator tool, you should be aware that even "the best one" can be useless if the code were not programmed with the best practices and/or taking proper care on the...
24. ## Thread: IR2130 problems in Proteus

by andre_teprom
Replies
7
Views
788

### Closed: Re: IR2130 problems in Proteus

Did you try changing the simulation options from "Default Settings" to either "Settings for better convergence" or "Settings for better accuracy"? It can be done at Menu on System>>Set Simulation...
25. ## Thread: I wrote simple code buttons to rotary for PIC12F509, but it works only on simulation!

by andre_teprom
Replies
8
Views
1,045

### [SOLVED]Closed: Re: I wrote simple code buttons to rotary for PIC12F509, but it works only on simulat

As said above, your code have a lot of blocking instructions that blinds the program for a while preventing from reading the actual encoder, for which we should just guess it have a resolution of...
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