Data-forwarder in CLI Potentially Buggy When Detecting Frequency

[floftus-at-csm]

Current set up:
Arduino Uno with Gyroscope and Accelerometer printing to the serial. Baud Rate 115200. Frequency set at 50Hz
Macbook running Big Sur OS

When I run edge-impulse-data-forwarder I get this error:

[SER] Detecting data frequency...
[SER] Failed to get information off device No valid sensor readings received from device. Note that the data forwarder can only auto-detect frequencies >2Hz. You can override the frequency via --frequency

When I run edge-impulse-data-forwarder --frequency 50 I get the same error

When I run edge-impulse-data-forwarder --frequency 1 this runs and I get this message:

[SER] Detected data frequency: 21.6Hz
[SER] Sampling frequency seems to have changed (was 50Hz, but is now 21.6Hz), re-configuring device.

[SER] Detecting data frequency...
[SER] Detected data frequency: 50Hz
? 6 sensor axes detected (example values: [13292,7764,3552,-3216,-72,-113]). Wha
t do you want to call them? Separate the names with ',': a_x,a_y,a_z,g_x,g_y,g_z


[SER] Overriding frequency to 1Hz (via --frequency)

So I can currently only run the program if I override the frequency to 1hz. Is this a limitation with my setup or a problem in the frequency detection of Edge Impulse?

Thanks!

btw my arduino code looks like this

#include <Wire.h>
const int MPU = 0x68;
int16_t AcX, AcY, AcZ, Tmp, GyX, GyY, GyZ;
#define CONVERT_G_TO_MS2 9.80665f
#define FREQUENCY_HZ 50
#define INTERVAL_MS (1000 / (FREQUENCY_HZ + 1))

static unsigned long last_interval_ms = 0;
void setup() {
  Wire.begin();
  Wire.beginTransmission(MPU);
  Wire.write(0x6B);
  Wire.write(0);
  Wire.endTransmission(true);
  Serial.begin(115200);
}
void loop() {
  if (millis() > last_interval_ms + INTERVAL_MS) {
    last_interval_ms = millis();
    Wire.beginTransmission(MPU);
    Wire.write(0x3B);
    Wire.endTransmission(false);
    Wire.requestFrom(MPU, 12, true);
    AcX = Wire.read() << 8 | Wire.read();
    AcY = Wire.read() << 8 | Wire.read();
    AcZ = Wire.read() << 8 | Wire.read();
    GyX = Wire.read() << 8 | Wire.read();
    GyY = Wire.read() << 8 | Wire.read();
    GyZ = Wire.read() << 8 | Wire.read();

    // Accelerometer
    Serial.print(AcX);
    Serial.print(",");
    Serial.print(AcY);
    Serial.print(",");
    Serial.print(AcZ);
    Serial.print(",");
    // Gyroscope
    Serial.print(GyX);
    Serial.print(",");
    Serial.print(GyY);
    Serial.print(",");
    Serial.println(GyZ);
  }
}