Serial read string HEX ,find byte buffer to HEX to DEC as a float02

[cento]

hello friend i have used this code for extraction Hex
void loop() {
if (SSerial.available()){

Serial.write(SSerial.read());
int inByte = SSerial.read();
// Serial.print(inByte, HEX);

07 07 4E 4D 4B 48 47 45 43 42 40 3F 3E 3B 3B 3A 38 37 35 36 33 32 31 30 2F 2D 2C 2C 2A 29 28 28 26 25 25 25 24 22 22 22 21 21 1F 20 1F 1E 1F 1F 1E 1E 1E 1F 1E 1E 1E 1E 1E 1E 1E 1F 1E 1D 1E 1E 1E 1E 1F 20 20 21 23 24 25 26 27 29 2A 2A 2C 2D 2E 2F 30 32 32 33 34 36 37 38 39 3C 3C 3D 3F 41 42 43 45 47 48 49 4C 4E 4F 50 53 56 57 58 5A 5D 5D 5F 61 63 64 64 67 68 69 6A 6B 6E 6E 6E 71 72 72 73 75 76 77 78 79 7A 7A 7A 7C 7D 7D 7D 7F 7F 7F 80 81 82 81 81 82 82 82 81 82 83 82 82 82 82 82 82 82 83 82 82 82 82 81 81 81 80 7E 7D 7D 7B 79 78 78 77 74 73 73 72 71 6F 6F 6E 6C 6B 6A 68 67 65 65 63 61 60 5F 5D 5B 5A 59 57 55 54 52 50 4E 4C 4B 49 47 45 44 42 40 3E 3E 3C 3A 39 39 37 35 35 34 32 30 30 2F 2D 2C 2B 2B 29 28 28 27 25 25 24 24 23 22 22 21 20 1F 20 20 1E 1E 1F 1E 1E 1E 1F 1E 1D 1E 1E 1E 1E 1D 1E 1E 1D 1E 1E 1E 1E 1E 20 21 21 22 24 25 95 30 30 30 30 02 14 07 05 02 02 02 04 01 9C 00 00 30 30 06 E8 34 32 39 34 39 36 37 32 39 35 33 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08

String need capturing
3030 3030 0214 07 05 02 02 02 04 019C 00 00 3030

Divided in this sequence
Table

Value 3030 is displayed voltage 12336V
Value 3030 is displayed wattage output 12336W
Value 0214 is displayed voltage panel 66.5V DC
Vaule 07 // code for display allarm 07 not have allarm
Value 05 nd
Value 02 nd
Value 02 nd
Value 02 nd
Value 04 nd
Value 019C is temperature displayed 35celsius
Value 0000 nd
Value 3030 1233W home power load

i need suggestion for manipulate this data
i have test cycle in this post
thanks

[jremington]

For hints on how to make a successful post, please read and follow the instructions in the "How to get the best out of the forum" post, linked at the head of every forum category.

[UKHeliBob]

@cento

this code

Please post a complete sketch, using code tags when you do

[cento]

'

String inputString = "";
boolean stringComplete = false;  // whether the string is complete
int buffer[350];               //        350 
int count = 0;
int temp3;


//SoftwareSerial SSerial(2,3);
void setup() {
  Serial.begin(9600);
  while(!Serial){}
  Serial.println("IN attesa Cavi non collegati...");
  SSerial.begin(9600);
}


void loop() {
  if (SSerial.available()){
       Serial.write(SSerial.read());

//  int inByte = SSerial.read();
// Serial.print(inByte, HEX);     // A This line my port com monitoring flush data HEX

 if (stringComplete) {            //not sure if this part work i have disabled//Serial.print(inByte, HEX); but serial.print a this time print ascii
    Serial.println(inputString); 
    inputString = "95";         // clear the string:  THIS IS START STRING same value every cycle  ??
    stringComplete = false;     //Reset the flag
    count = 0;    //Reset the array counter


}
} 

//  while (SSerial.available()) {
    // get the new byte:
    byte inChar = SSerial.read();
    // add it to the inputString:
    inputString += inChar;
    buffer[count] = inChar;// this buffer start in hex reading?this is ascii
    count++;
    // if the incoming character is a $, set a flag so the main loop can do something about it:
  //  if (inChar == '      // CODE IS NOT COMPLETE
if(inChar == '$') { stringComplete = true; }                     //this for complete ?   A this this next part programm running and print data to serial com.data is more variable not stable not sure request my buffer
  

 Serial.print("Watt USED: ");
  //watt used code convert 30 30 from hex to decimal and then display 1233W
  temp3 += buffer[2];
  temp3 += buffer[3];
  Serial.println(temp3);  //so you can see the captured string
'

like post number 1

[UKHeliBob]

Did you miss the request to use code tags when posting code ?

Please follow the advice given in the link below when posting code, in particular the section entitled 'Posting code and common code problems'

Use code tags (the </> icon above the compose window) to make it easier to read and copy for examination

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[cento]

@UKHeliBob

Did you miss the request to use code tags when posting code ?

Please follow the advice given in the link below when posting code, in particular the section entitled 'Posting code and common code problems'

I apologize I don't understand how to insert the tags I have inserted quotation mark '' does not work
this is ok ?

Compiler Explorer - C++ (x86-64 gcc 12.2)

[cattledog]

You should post code by using code-tags. There are two simple ways to do this.

First way is to click on the code tags icon at the top of the posting window

Another wasy is to use an automatic function for doing this in the Arduino-IDE.

Three steps

1)press Ctrl-T for autoformatting your code
2)do a rightclick with the mouse and choose "copy for forum"
3)paste clipboard into write-window of a posting

[cento]

is ok ?

[cattledog]

Yes, Post #4 looks corrected.

[david_2018]

Code does not appear to be complete.

Looks like you are testing for SSerial.available(), then reading multiple characters from the serial buffer, without knowing how many are actually available.

[gcjr]

@cento, does this help?
Output:

 Hex:  0x31 0x32 0x33 0x33 0x36
 Dec:   49  50  51  51  54
 float: 12.336

Code:

char buf [80];
char s [80];
char fStr [10];

void
process (
    char *buf )
{
    unsigned len = strlen (buf);

    Serial.print (" Hex: ");
    for (unsigned n = 0; n < len; n++)  {
        sprintf (s, " 0x%02x", buf[n]);
        Serial.print (s);
    }
    Serial.println ();
    
    Serial.print (" Dec: ");
    for (unsigned n = 0; n < len; n++)  {
        sprintf (s, " %3d", buf[n]);
        Serial.print (s);
    }
    Serial.println ();
    
    int   x = atoi (buf);
    float f = x / 1000.0;
    dtostrf (f, 6, 3, fStr);

    Serial.print (" float: ");
    Serial.println (fStr);
}

void
loop (void)
{
    if (Serial.available ())  {
        int n = Serial.readBytesUntil ('\n', buf, sizeof(buf)-1);
        buf [n] = '\0';         // terminal w/ NULL

        process (buf);
    }
}

void
setup (void)
{
    Serial.begin (9600);
}

[cento]

Thank you for code conversion.

My code a this time display value.
But i not hare sure if my code flow is correct
Vaule is not same to display..
Working progress...

[gcjr]

@cento

30 30 12336V
30 30 12336W
02 14 66.5V Voltage DC

what are you trying to do?

this output suggests reading voltages and power (Watts).
do you need a way to identify that the input is a Voltage or Power? separate the sub-fields, and translate the ASCII values into decimal values?

[cento]

@gcjr

@cento

3030 12336V <------
3030 12336W <------
0214 66.5V Voltage DC <------

what are you trying to do?
I have dumped the string.
Captured allocation for my value display.
Replaced data hex to succession value 95 with 30 30
And my display have printed 1233V
A next step have send to other allocation same value 30 30 and have found next allocation for W in use...
Next step replaced other data and display have write the different temperature....

I have find the value to precise allocation

this output suggests reading voltages and power (Watts).
do you need a way to identify that the input is a Voltage or Power?
I know location for data.need selection.

separate the sub-fields, and translate the ASCII values into decimal values?

Yes

With this code i send only one byte
This code reply

If send more byte around 10.my code reply with more result

This code not capture one complete string
This code capture one buffer and send result.

If have data in in ascci
With this line
// Serial.print(inByte, HEX);
i have printed hex value. But have printed total string.

In the string i need find the value 95
For start cycle buffering
And capture the next hex.

In the old post have the position hex interessed.

[gcjr]

@gcjr

what are you trying to do?

@cento

With this code i send only one byte

so this code it trying to send 1 byte?

[cento]

I need send to you one video for understand this?

Step 02 :uart bus TX RX send request master to slave #gtil2 #Sun2000 #inverter sniffing serial rs232

In the video i send the dump for display
And inverter reply.

I need manipulation data recevied by inverter.
Thank s
The comunication possible is master slave.
The display send the code
And the inverter reply to display.

Thank s

[gcjr]

please use google translate to provide a clearer explanation of what you want to do?

what is the format to the data being dumped?

it looks like some of it is sinusoidal

@cento

07 07 4E 4D 4B 48 47 45 43 42 40 3F 3E 3B 3B 3A 38 37 35 36 33 32 31 30 2F 2D 2C 2C 2A 29 28 28 26 25 25 25 24 22 22 22 21 21 1F 20 1F 1E 1F 1F 1E 1E 1E 1F 1E 1E 1E 1E 1E 1E 1E 1F 1E 1D 1E 1E 1E 1E 1F 20 20 21 23 24 25 26 27 29 2A 2A 2C 2D 2E 2F 30 32 32 33 34 36 37 38 39 3C 3C 3D 3F 41 42 43 45 47 48 49 4C 4E 4F 50 53 56 57 58 5A 5D 5D 5F 61 63 64 64 67 68 69 6A 6B 6E 6E 6E 71 72 72 73 75 76 77 78 79 7A 7A 7A 7C 7D 7D 7D 7F 7F 7F 80 81 82 81 81 82 82 82 81 82 83 82 82 82 82 82 82 82 83 82 82 82 82 81 81 81 80 7E 7D 7D 7B 79 78 78 77 74 73 73 72 71 6F 6F 6E 6C 6B 6A 68 67 65 65 63 61 60 5F 5D 5B 5A 59 57 55 54 52 50 4E 4C 4B 49 47 45 44 42 40 3E 3E 3C 3A 39 39 37 35 35 34 32 30 30 2F 2D 2C 2B 2B 29 28 28 27 25 25 24 24 23 22 22 21 20 1F 20 20 1E 1E 1F 1E 1E 1E 1F 1E 1D 1E 1E 1E 1E 1D 1E 1E 1D 1E 1E 1E 1E 1E 20 21 21 22 24 25 95 30 30 30 30 02 14 07 05 02 02 02 04 01 9C 00 00 30 30 06 E8 34 32 39 34 39 36 37 32 39 35 33 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08

[cento]

This is format data dumped is in hex.
In this string up the post..
I need find value 95 and capture this next string
30 30 30 30 02 14 07 05 02 02 02 04 01 9C 00 00 30 30

Ok? Thank s

[gcjr]

@cento

This is format data dumped is in hex.

all data is binary (hex) but what does it represent

example:

[cento]

Yeah i have edit post 16