LensConnect Series FAQ
- Is there any interface apart from USB available?
- Why is USB 2.0 being adopted instead of USB 3.0?
- The LensConnect's USB cable is too short in length (30 cm). Is it possible to make it longer?
- I would like to extend the USB cable of my LensConnect lens beyond 5 m. Is this possible?
- What electrical power is needed to drive the LensConnect lens?
- After switching the power on, is it necessary to initialize the device?
- Is there an SDK?
- What programming languages are there available?
- Is the sample program designed for 32-bit or 64-bit?
- Is there a USB dll-(library)-file?
- If the power is interrupted, will the lens position be maintained?
- After terminating the LensConnect_Controller, will the position be maintained?
- When moving the lens into a certain direction, the screen appears to be shaking. Is this a malfunction?
- How do I operate the device when backlash compensation is turned on?
- When focusing (zooming) I can hear a motor sound, but the lens does not move. However, the iris is moving.
- In a Linux environment, LensConnect_Controller does not identify the lens.
- Can I run the program in a Linux environment without administrator privileges.
- Is it possible to zoom and focus simultaneously?
- Are there any restrictions on Windows versions?
- Are there any restrictions on Linux OS distributions?
- Does the program run on single-board computers such as Raspberry Pi or Jetson?
- Do I need to create an account if I want to download the sample program or API/Protocol documents?
Q |
Is there any interface apart from USB available? |
A |
Yes, we also have I2C interface compatible models* *Minimum order quantity and other conditions apply |
Q |
Why is USB 2.0 being adopted instead of USB 3.0? |
A |
Since the data transfer rate of USB 3.0 is not needed, USB 2.0, which is more suited for longer transmission distances, is being adopted. |
Q |
The LensConnect's USB cable is too short in length (30 cm). Is it possible to make it longer? |
A |
We do not provide cable length customization. Customers will need to acquire their own extension cables. *Please note that according to USB 2.0 standards, the cable length is limited to a maximum of 5 m. |
Q |
I would like to extend the USB cable of my LensConnect lens beyond 5 m. Is this possible? |
A |
Yes, extending the length by using a USB repeater cable is possible. |
Q |
What electrical power is needed to drive the LensConnect lens? |
A |
The USB model and I2C model both require 5V (voltage) and 500mA (current). |
Q |
After switching the power on, is it necessary to initialize the device? |
A |
Yes, it is necessary to initialize the device after switching the power on. For instructions, please refer to the API Document/Protocol Document. |
Q |
Is there an SDK? |
A |
There is a sample program and downloadable documents. To download, please use this [link]. *To download, you must create an account on our global website at https://www.computar-global.com/product/bh/. |
Q |
What programming languages are there available? |
A |
For Windows, C#, C/C++, and Python. For Linux, C/C++, and Python. |
Q |
Is the sample program designed for 32-bit or 64-bit? |
A |
In Windows, C#, and C/C++, it is designed for both 32 and 64-bit. In Linux, it is principally designed for 64-bit, but by modifying the Makefile and using a 32-bit library, it can run in 32-bit. Currently, in Python, it is only available for 64-bit. |
Q |
Is there a USB dll-(library)-file? |
A |
The USB dll-(library)-file can be downloaded on the Silicon Labs website. Please use this link to download it. |
Q |
If the power is interrupted, will the lens position be maintained? |
A |
If the power is interrupted, in principle, the lens positions will not be maintained. For the following products, however, it will be maintained after the power has been interrupted: VL0826U-MPZ, VL1226U-MPZ, VL1624U-MPZ, VL2520U-MPZ, VL35226U-MPZ, VL5024U-MPZ, and VL7531U-MPZ. After turning the power on again, the address will be undetermined, so make sure to initialize before use. |
Q |
After terminating the LensConnect_Controller, will the position be maintained? |
A |
Yes. If the lens is supplied with continuous power, its position will be maintained and memorized. |
Q |
When moving the lens into a certain direction, the screen appears to be shaking. Is this a malfunction? |
A |
The shaking on the screen when driving the lens in one direction occurs due to a compensation of the backlash in the mechanism. When the compensation is enabled, the memorized position can be recalled from any other position. If the shaking is a concern, this function can be turned off. |
Q |
How do I operate the device when backlash compensation is turned on? |
A |
In principle, it stops at the target address toward the decreasing address. If the direction is that of an increasing address, it will go once by the target address before returning and eventually stopping there. If the direction is that of a decreasing address, it will directly move to the target address before stopping there. |
Q |
When focusing (zooming) I can hear a motor sound, but the lens does not move. However, the iris is moving. |
A |
Is sufficient current supplied via USB? If the electrical current is insufficient, it can cause this issue. If the lens does not move despite there being sufficient current, please get in touch with us. |
Q |
In a Linux environment, LensConnect_Controller does not identify the lens. |
A |
Please run the program with administrator privileges (root). |
Q |
Can I run the program in a Linux environment without administrator privileges. |
A |
Q |
Is it possible to zoom and focus simultaneously? |
A |
No. Currently, this is not possible. |
Q |
Are there any restrictions on Windows versions? |
A |
Currently, we are not aware of any issues. However, if the .NET Framework version is too old, the GUI cannot be used in Windows. (Our software uses .NET Framework 4.7.2) |
Q |
Are there any restrictions on Linux OS distributions? |
A |
Currently, we are not aware of any issues with Linux OS distributions. |
Q |
Does the program run on single-board computers such as Raspberry Pi or Jetson? |
A |
The functionality on Raspberry Pi 4 and Jetson Xavier NX is verified. |
Q |
Do I need to create an account if I want to download the sample program or API/Protocol documents? |
A |
