General Purpose USB Proximity Sensor, Infrared reflection, for Object Detection, Max. Distance 10cm

Features

• Can detect any object that reflects infrared rays (solid, liquid, human hand, etc.).
• Uses a pulse modulation method that is resistant to interference from ambient light.
• Control commands compatible with Windows/Linux are provided, making it easy to integrate into systems.
• Operates on bus power, eliminating the need for an external power source.
• Capable of a high-speed response time of a minimum of 16 milliseconds (※varies depending on the OS, example given for Windows).

How to Use

• Simply connect to a USB port to use.
• Controlled using Tokyo Devices' standard control command "TD-USB".
• A demo application "TD-AppKit" utilizing TD-USB is available (Windows only).

TD-USB Command excamples

Retrieve the current strength of infrared reflection on a scale from 0 to 1023.
> td-usb tdsn450 get
320 

Set the threshold to 300±10 and write it to the device.
> td-usb tdsn450 set THRESHOLD=300
> td-usb tdsn450 set HYSTERESIS=10
> td-usb tdsn450 save

When the value exceeds the threshold, output "1"; when it falls, output "0".
> td-usb tdsn450 listen --loop
1
0
1 

The TD-USB command can be utilized by calling it as an external program from various programming languages. Due to its simple specifications, it can also be used from shell scripts. For more details, please refer to the datasheet.

Specifications

• Detection Method: Infrared Pulse Modulation
• Central Wavelength: 940nm
• Maximum Detection Distance: 100mm ※When using white copy paper. Distance will decrease depending on reflectivity.
• Detection Range: ±60 degrees (horizontal)
• Operating Temperature Range: 0 to 55°C