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count()

Instance Method | VTSDeviceFinder Class

📖 Method Description​

Get the count of Vitai vision-based tactile sensor devices currently connected to the computer. This method provides a fast way to get the device count without retrieving the complete device list.

📝 Syntax​

device_count = finder.count()

🔧 Parameters​

No parameters

📤 Return Type​

int - Number of connected devices

💡 Example Code​

from pyvitaisdk import VTSDeviceFinder

# Create VTSDeviceFinder instance
finder = VTSDeviceFinder()

# Get count of connected devices
device_count = finder.count()
print(f"Currently connected {device_count} device(s)")

# Decide next actions based on count
if device_count == 0:
    print("No devices detected, please check connection")
elif device_count == 1:
    print("Detected 1 device")
else:
    print(f"Detected multiple devices ({device_count})")

⚠️ Notes​

Performance Tip

If you only need to know the device count without device details, using count() is more efficient than len(get_devices()).

Return Value
  • Returns 0 if no devices are detected
  • Returns a positive integer for the number of detected devices

🔗 Related Methods​