data format

[ma330]

Hello dear friends,
I’ve been working on magnetometer devices and imaging systems for a long time. I’ve run into a problem, and if anyone has information about it, please guide me.
I want to know what the data transmission format from the microcontroller to the Visualizer software should be.
I tested it in every way I could, but the scan didn’t show up on the laptop.

[Hyena]

Hello dear friends,
I’ve been working on magnetometer devices and imaging systems for a long time. I’ve run into a problem, and if anyone has information about it, please guide me.
I want to know what the data transmission format from the microcontroller to the Visualizer software should be.
I tested it in every way I could, but the scan didn’t show up on the laptop.

Hello, would you provide more specifications?

From which microcontroller into which visualizer?

I am using esp32 with sd card. Saving location, orientation and measurement data as .csv
Later on pc python generates interactive html (in this case i measured all directions from one place so result is sphere)
4200 rows of: time,lat,lon,heading,pitch,roll,f1_hz,f2_hz look like this:

[ma330]

Hello, would you provide more specifications?

From which microcontroller into which visualizer?

I am using esp32 with sd card. Saving location, orientation and measurement data as .csv
Later on pc python generates interactive html (in this case i measured all directions from one place so result is sphere)
4200 rows of: time,lat,lon,heading,pitch,roll,f1_hz,f2_hz look like this:

I’m using the ATmega32 microcontroller,I send the data to the laptop via the USART port using Bluetooth.

[ma330]

I found this code in one of the threads on this forum. I’m not sure whether it actually works or not. I have one question: what is the reason for sending several transmissions in a row with a 250ms delay before the main loop?
Could you explain the reason for this process?

https://www.geotech1.com/forums/foru...800#post425800

Chip type : ATmega16A
Program type : Application
AVR Core Clock frequency: 8.000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 256
***********/

#include <mega16a.h>
#include <delay.h>

// Declare your global variables here
int x;

// Standard Input/Output functions
#include <stdio.h>

// Voltage Reference: AVCC pin
#define ADC_VREF_TYPE ((0<<REFS1) | (1<<REFS0) | (1<<ADLAR))

// Read the 8 most significant bits of the AD conversion result
unsigned char read_adc(unsigned char adc_input)
{
  ADMUX=adc_input | ADC_VREF_TYPE;
  // Delay needed for the stabilization of the ADC input voltage
  delay_us(10);
  // Start the AD conversion
  ADCSRA|=(1<<ADSC);
  // Wait for the AD conversion to complete
  while ((ADCSRA & (1<<ADIF))==0);
  ADCSRA|=(1<<ADIF);
  return ADCH;
}

void main(void)
{
  // Declare your local variables here
  
  // Input/Output Ports initialization
  // Port A initialization
  // Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In
  DDRA=(0<<DDA7) | (0<<DDA6) | (0<<DDA5) | (0<<DDA4) | (0<<DDA3) | (0<<DDA2) | (0<<DDA1) | (0<<DDA0);
  // State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T
  PORTA=(0<<PORTA7) | (0<<PORTA6) | (0<<PORTA5) | (0<<PORTA4) | (0<<PORTA3) | (0<<PORTA2) | (0<<PORTA1) | (0<<PORTA0);
  
  // Port B initialization
  // Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In
  DDRB=(0<<DDB7) | (0<<DDB6) | (0<<DDB5) | (0<<DDB4) | (0<<DDB3) | (0<<DDB2) | (0<<DDB1) | (0<<DDB0);
  // State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T
  PORTB=(0<<PORTB7) | (0<<PORTB6) | (0<<PORTB5) | (0<<PORTB4) | (0<<PORTB3) | (0<<PORTB2) | (0<<PORTB1) | (0<<PORTB0);
  
  // Port C initialization
  // Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In
  DDRC=(0<<DDC7) | (0<<DDC6) | (0<<DDC5) | (0<<DDC4) | (0<<DDC3) | (0<<DDC2) | (0<<DDC1) | (0<<DDC0);
  // State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T
  PORTC=(0<<PORTC7) | (0<<PORTC6) | (0<<PORTC5) | (0<<PORTC4) | (0<<PORTC3) | (0<<PORTC2) | (0<<PORTC1) | (0<<PORTC0);
  
  // Port D initialization
  // Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In
  DDRD=(0<<DDD7) | (0<<DDD6) | (0<<DDD5) | (0<<DDD4) | (0<<DDD3) | (0<<DDD2) | (0<<DDD1) | (0<<DDD0);
  // State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T
  PORTD=(0<<PORTD7) | (0<<PORTD6) | (0<<PORTD5) | (0<<PORTD4) | (0<<PORTD3) | (0<<PORTD2) | (0<<PORTD1) | (0<<PORTD0);
  
  // Timer/Counter 0 initialization
  // Clock source: System Clock
  // Clock value: Timer 0 Stopped
  // Mode: Normal top=0xFF
  // OC0 output: Disconnected
  TCCR0=(0<<WGM00) | (0<<COM01) | (0<<COM00) | (0<<WGM01) | (0<<CS02) | (0<<CS01) | (0<<CS00);
  TCNT0=0x00;
  OCR0=0x00;

  // Timer/Counter 1 initialization
  // Clock source: System Clock
  // Clock value: Timer1 Stopped
  // Mode: Normal top=0xFFFF
  // OC1A output: Disconnected
  // OC1B output: Disconnected
  // Noise Canceler: Off
  // Input Capture on Falling Edge
  // Timer1 Overflow Interrupt: Off
  // Input Capture Interrupt: Off
  // Compare A Match Interrupt: Off
  // Compare B Match Interrupt: Off
  TCCR1A=(0<<COM1A1) | (0<<COM1A0) | (0<<COM1B1) | (0<<COM1B0) | (0<<WGM11) | (0<<WGM10);
  TCCR1B=(0<<ICNC1) | (0<<ICES1) | (0<<WGM13) | (0<<WGM12) | (0<<CS12) | (0<<CS11) | (0<<CS10);
  TCNT1H=0x00;
  TCNT1L=0x00;
  ICR1H=0x00;
  ICR1L=0x00;
  OCR1AH=0x00;
  OCR1AL=0x00;
  OCR1BH=0x00;
  OCR1BL=0x00;

  // Timer/Counter 2 initialization
  // Clock source: System Clock
  // Clock value: Timer2 Stopped
  // Mode: Normal top=0xFF
  // OC2 output: Disconnected
  ASSR=0<<AS2;
  TCCR2=(0<<PWM2) | (0<<COM21) | (0<<COM20) | (0<<CTC2) | (0<<CS22) | (0<<CS21) | (0<<CS20);
  TCNT2=0x00;
  OCR2=0x00;

  // Timer(s)/Counter(s) Interrupt(s) initialization
  TIMSK=(0<<OCIE2) | (0<<TOIE2) | (0<<TICIE1) | (0<<OCIE1A) | (0<<OCIE1B) | (0<<TOIE1) | (0<<OCIE0) | (0<<TOIE0);
  
  // External Interrupt(s) initialization
  // INT0: Off
  // INT1: Off
  // INT2: Off
  MCUCR=(0<<ISC11) | (0<<ISC10) | (0<<ISC01) | (0<<ISC00);
  MCUCSR=(0<<ISC2);
  
  // USART initialization
  // Communication Parameters: 8 Data, 1 Stop, No Parity
  // USART Receiver: Off
  // USART Transmitter: On
  // USART Mode: Asynchronous
  // USART Baud Rate: 2400
  UCSRA=(0<<RXC) | (0<<TXC) | (0<<UDRE) | (0<<FE) | (0<<DOR) | (0<<UPE) | (0<<U2X) | (0<<MPCM);
  UCSRB=(0<<RXCIE) | (0<<TXCIE) | (0<<UDRIE) | (0<<RXEN) | (1<<TXEN) | (0<<UCSZ2) | (0<<RXB | (0<<TXB;
  UCSRC=(1<<URSEL) | (0<<UMSEL) | (0<<UPM1) | (0<<UPM0) | (0<<USBS) | (1<<UCSZ1) | (1<<UCSZ0) | (0<<UCPOL);
  UBRRH=0x00;
  UBRRL=0xCF;
  
  // Analog Comparator initialization
  // Analog Comparator: Off
  // The Analog Comparator's positive input is
  // connected to the AIN0 pin
  // The Analog Comparator's negative input is
  // connected to the AIN1 pin
  ACSR=(1<<ACD) | (0<<ACBG) | (0<<ACO) | (0<<ACI) | (0<<ACIE) | (0<<ACIC) | (0<<ACIS1) | (0<<ACIS0);
  
  // ADC initialization
  // ADC Clock frequency: 1000.000 kHz
  // ADC Voltage Reference: AVCC pin
  // ADC Auto Trigger Source: ADC Stopped
  // Only the 8 most significant bits of
  // the AD conversion result are used
  ADMUX=ADC_VREF_TYPE;
  ADCSRA=(1<<ADEN) | (0<<ADSC) | (0<<ADATE) | (0<<ADIF) | (0<<ADIE) | (0<<ADPS2) | (1<<ADPS1) | (1<<ADPS0);
  SFIOR=(0<<ADTS2) | (0<<ADTS1) | (0<<ADTS0);
  
  // SPI initialization
  // SPI disabled
  SPCR=(0<<SPIE) | (0<<SPE) | (0<<DORD) | (0<<MSTR) | (0<<CPOL) | (0<<CPHA) | (0<<SPR1) | (0<<SPR0);
  
  // TWI initialization
  // TWI disabled
  TWCR=(0<<TWEA) | (0<<TWSTA) | (0<<TWSTO) | (0<<TWEN) | (0<<TWIE);

  printf("%d\r\n",100);
  delay_ms(250);
  printf("%d\r\n",100);
  delay_ms(250);
  printf("%d\r\n",100);
  delay_ms(250);
  printf("%d\r\n",15);
  delay_ms(250);
  printf("%d\r\n",15);
  delay_ms(250);
  printf("%d\r\n",15);
  delay_ms(250);
  printf("%d\r\n",83);
  delay_ms(250);
  printf("%d\r\n",83);
  delay_ms(250);
  printf("%d\r\n",83);
  delay_ms(250);
  printf("%d\r\n",105);
  delay_ms(250);
  printf("%d\r\n",105);
  delay_ms(250);
  printf("%d\r\n",105);
  delay_ms(250);
  printf("%d\r\n",67);
  delay_ms(250);
  printf("%d\r\n",67);
  delay_ms(250);
  printf("%d\r\n",67);
  delay_ms(250);
  
  while (1)
  {
    // Place your code here
    x=read_adc(0);
    delay_ms(100);
    printf("%d\r\n",x);
  }
}​​
​

[Hyena]

Initialize all peripherals (mostly disabled)
Configure ADC to read analog values from channel ADC0 (PA0)
Configure USART transmitter only, baud = 2400 bps
Print several predefined numbers via UART - seems like initialization sequence

Then loop sending PA0 value (0-255) each 0.1s

Read ADC channel 0
delay 100 ms
send ADC value through UART

[ma330]

Initialize all peripherals (mostly disabled)
Configure ADC to read analog values from channel ADC0 (PA0)
Configure USART transmitter only, baud = 2400 bps
Print several predefined numbers via UART - seems like initialization sequence

Then loop sending PA0 value (0-255) each 0.1s

Read ADC channel 0
delay 100 ms
send ADC value through UART

---

By sending the data this way, will I be able to view the live data in the Visualizer software?

---

[Hyena]

If software expect this initialization, then yes. I still dont know what software are we talking about, do you have link to its specs?

[ma330]

If software expect this initialization, then yes. I still dont know what software are we talking about, do you have link to its specs?

Visualizer 3d okm company .

Atmega32 in code vision

[Hyena]

Well, I looked at their online manuals but found no information about communication protocols. Their detectors seems to have some kind of operation modes which should correspond to selected in software. I would be very carefull about anything coming from LRL selling company... without further detailed info, cant confirm/reject.

[Mahmoud Jo]

Hello dear friends,
I’ve been working on magnetometer devices and imaging systems for a long time. I’ve run into a problem, and if anyone has information about it, please guide me.
I want to know what the data transmission format from the microcontroller to the Visualizer software should be.
I tested it in every way I could, but the scan didn’t show up on the laptop.

Contact me on Telegram for instructions.
@Muha1154

[ma330]

Contact me on Telegram for instructions.
@Muha1154

User is not found