Serial 6-axis accelerometer wont change sampling frequency
991cw 2025-07-11 02:49:45 880 Views4 Replies I have been using this code from the website but any tinme i try to change the sampling frequency it does not change. It is always stuck at 10Hz. I have tried send it the raw code but it still wont work. I have set it up exactly like the guide says to. Is there something obvious that I am missing from my code below.
/*!
* @file getData.ino
* @brief Set the frequency of data output by the sensor, read the acceleration,
* @n angular velocity, and angle of X, Y, and Z axes.
* @n Experimental phenomenon: when the sensor starts, it outputs data at the set
* @n frequency and the data will be displayed on serial monitor.
* @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
* @license The MIT License (MIT)
* @author [huyujie]([email protected])
* @version V1.0
* @date 2023-07-12
* @url https://github.com/DFRobot/DFRobot_WT61PC
*/
#include <DFRobot_WT61PC.h>
#if (defined(ARDUINO_AVR_UNO) || defined(ESP8266)) // Using a soft serial port
#include <SoftwareSerial.h>
SoftwareSerial softSerial(/*rx =*/10, /*tx =*/11);
#define FPSerial softSerial
#else
#define FPSerial Serial1
#endif
DFRobot_WT61PC sensor(&FPSerial);
void setup()
{
//Use Serial as debugging serial port
Serial.begin(115200);
#if (defined ESP32)
FPSerial.begin(9600, SERIAL_8N1, /*rx =*/D3, /*tx =*/D2);
#else
FPSerial.begin(9600);
#endif
void loop()
{
if (sensor.available()) {
Serial.print("Acc\t"); Serial.print(sensor.Acc.X); Serial.print("\t");
Serial.print(sensor.Acc.Y); Serial.print("\t"); Serial.println(sensor.Acc.Z); //acceleration information of X,Y,Z
Serial.print("Gyro\t"); Serial.print(sensor.Gyro.X); Serial.print("\t");
Serial.print(sensor.Gyro.Y); Serial.print("\t"); Serial.println(sensor.Gyro.Z); //angular velocity information of X,Y,Z
Serial.print("Angle\t"); Serial.print(sensor.Angle.X); Serial.print("\t");
Serial.print(sensor.Angle.Y); Serial.print("\t"); Serial.println(sensor.Angle.Z); //angle information of X, Y, Z
Serial.println();
}
}
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Rosley Has this been resolved? I recently purchased the SEN0386 6-axis. I think I am having the same issue. It appears to stuck at 10Hz output frequency. I am using the example code from dfrobot. The reason I think it is stuck at 10Hz is because my loop time is very close to .100 seconds. The line of code that is causing the .100s delay is:
if (sensor.available()) {
Please advise,
Thanks
Johnsinski.69 Add a call to sensor.setOutputFreq(<desired_frequency>) in your setup() function. For example, to set it to 100 Hz, do this:
void setup()
{
// Debug serial
Serial.begin(115200);
#if (defined ESP32)
FPSerial.begin(9600, SERIAL_8N1, /*rx =*/D3, /*tx =*/D2);
#else
FPSerial.begin(9600);
#endif
// Wait for sensor to initialize
delay(1000);
// Initialize sensor
sensor.begin();
// Set data output frequency (possible values: 0x01 (1Hz), 0x02 (2Hz), ..., 0x63 (100Hz))
sensor.setOutputFreq(100); // Set to 100 Hz, change as needed
}
ahsrab.rifat Here is the command i use for changing the frequency. i put it at the end of the void setup(). Here is the line: sensor.modifyFrequency(FREQUENCY_100HZ)
991cw 
