Conversa – USB 3.1 Camera with Microphone supports Low Light

Conversa – USB 3.1 Camera with Microphone supports Low Light


e-con Systems is a leading camera solutions provider making state of the art camera modules, and also have recently added a new camera module to their collection called Conversa. e-con system’s cameras include standalone MIPI camera modules, USB cameras, and stereo cameras.

The Conversa also known with the code name See3CAM_CU38 is a USB 3.1 Gen 1 based Camera with an inbuilt stereo microphone and supports low light environment. The camera module is a 3.4 MP custom lens fixed focus camera, and the built-in stereo microphone can provide 16bit audio @48KHz. Supplied with the camera is an S-mount (M12) lens holder that is expected to allow users to choose what sort of lens they choose to use with it.

Conversa – A USB 3.1 Camera with Microphone and supports Low Light

The Conversa camera module is based on its predecessor, the See3CAM_CU30, which is a similar low light USB camera but doesn’t feature a microphone. The camera is based on the AR0330 sensor from ON Semiconductor which gives it the superbly low light performance. The camera can stream FHD (1920 x 1080) at 60 fps and HD (1280 x 720) at 60 fps in both Uncompressed UYVY and Compressed MJPEG formats.

Conversa – A USB 3.1 Camera with Microphone and supports Low Light

With a dedicated ISP (Image Signal Processor) chip, the camera can perform all the Auto functions (Auto White Balance, Auto Exposure Control) with support for a processing pipeline which helps in providing video and MJPEG compressions. It is a plug-and-play (UVC and UAC) compliant USB 3.1 Gen1 SuperSpeed camera and is also backward compatible with USB 2.0 host ports.

Main Benefits

Main benefits of this camera are the high resolution along with the USB3.1 interface support which enables the user to capture details of the filming field without any lag or delay on the connection to your PC. The USB3.1 interface and the accompanying Windows and Linux software (e-CAMView and QtCAM) let you preview video and capture still photos with ease. Still images have a resolution of 3.4 MP (both MJPEG and BMP) and all parameters are automatically configured from the UVC control to enable you capture the best available image. Additionally there is a stereo microphone on board that help you record clear and vivid sound without much effort.

Device Specifications

Camera Module Features

  • Sensor: AR0330 from ON Semiconductors
  • Sensor Resolution and Optical Format: 4 MP CMOS Image Sensor. 1/3″ Optical format
  • Sensor type: 4 MP CMOS Electronic Rolling Shutter Sensor
  • Image Signal Processor: External ISP
  • Output Format: Uncompressed UYVY format and Compressed MJPEG format

Sensor Features

  • Pixel size:2μm x 2.2μm pixel
  • Sensor Active Area:2304(H) x 1536(V)
  • Responsivity:0 V/lux-sec (550 nm)
  • SNR:39 dB
  • Dynamic Range:5 dB
  • Shutter type: Electronic Rolling Shutter
  • Focus Type: Fixed focus
  • DFOV: 4MP – 120° (with the lens provided by e-con)

Microphone Features

  • Channels: 2 (Stereo)
  • Bit depth:16 bit
  • Sampling Frequency:48 KHz

Targeted Applications

  • Door bell camera
  • In-car security
  • Rescue AGV camera
  • Microscope Camera
  • Video conference
  • Badge camera


  • OS Support: Windows, Linux, and MAC (requires talking with support)
  • Image Resolutions: 3.4MP (Both MJPEG and BMP)
  • Operating Voltage: 5V +/- 5%, Current – 512mA
  • Operating Temperature Range: -30°C to 70°C
  • Power requirements: Max – 2.55W & Min – 1.20W
  • Capture Mode: External trigger signal control & Software application control
  • Zero Shutter Lag: 3.4 MP still capture with zero-lag-shutter
  • UVC Controls: Brightness, Contrast, Sharpness, Saturation Control, Gamma Control, Pan-tilt zoom, Digital zoom (up to 8x), and many more.
  • UAC Controls: Volume, and mute.
  • Extras: Face detection, Smile detection, Orientation controls, Frame rate control, and Image capture -burst mode.
  • Dimension – 30 x 30 x 30.2 mm (without lens & with M12 holder)
  • Weight in Grams: 14 Grams (without lens) & 19 Grams (with lens)

e-Con System has also released sample applications for use with the camera:

  • e-CAMView – A Windows camera application for video preview and still capture.
  • QtCAM – Linux Camera application for Video Preview and Still Capture.
Conversa Evaluation Kit

In addition to Conversa, an evaluation kit is available and comes with e-CAMView (Windows) / QtCAM (Linux) – Sample application for Video Preview and Still Capture along with the UVC Extension features (for Windows 10, Windows 8.1, Windows 7, Linux and MAC *).

Introduction Video

The Conversa camera is available for purchase as sample in two options: The camera with lens is available for $169 here, and the camera without lens is available for $139 here. More information about the product is available on the product page, and the datasheet is available here.

Hi, I'm software, a hardware guy, and a technical writer. Have had a stint with the EdTech industries, but mostly interested in the space of deploying AI for edge computing. Otherwise, I am writing or coding about some technology pieces covering IoT, GPU computing, LoraWAN, PCB, Machine Learning, Precision Agriculture, Open Electronics, and related fields. Got a tip, freebies, launch, gig or leak? Contact me on Twitter, or via email: I don't bite.

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