EVB90640-41

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The EVB90640-41 evaluation board for Lepton 2.x longwave-IR (LWIR) thermal cameras can be classified into the \'Evaluation Boards - Sensors\' category. It is used as an interface and control platform to evaluate Lepton thermal camera modules, providing a convenient way for users to customize their camera’s capabilities. Along with the board, a comprehensive Quick Start Guide, Board Design File, and LabVIEW examples are included to aid users in getting started.

The board itself is made up of two components; the first is an ST Microelectronics STM32F411RE microcontroller board with integrated USB Serial, WiFi by Ethernet, and other essential features. The second component is a Lepton 2.x LWIR thermal camera module that takes a digital video image in the form of pixel data and transmits it to the STM32F411RE board as 8-bit PWM output. By connecting the board to a host PC, user can easily access the software and customize the LWIR camera.

The EVB90640-41 board uses Lepton 2.x LWIR cameras that employ a microbolometer technology. This advanced thermal imaging technology enables the camera to accurately detect extremely weak heat signatures, such as those emitted from infrared sources. The camera is capable of detecting temperatures in the range of -20°C to 400°C, with a resolution of up to 60 x 60 pixels and sensitivity of up to 80mK. This makes the technology well-suited for applications in various industries such as security, environmental monitoring, surveillance, machine vision and process control. The EVB90640-41, with its integrated STM32F411RE microcontroller board, allows for user customization of the camera’s lenses, filters, and image processing algorithms.

The EVB90640-41 board’s working principle is quite simple; the thermal camera module captures the incoming thermal signals from the environment and relays the data to the microcontroller board. The image data sent to the microcontroller board from the camera module is processed by the STM32F411RE’s onboard image processing libraries. These libraries can be used to customize the image quality and accuracy of the camera, such as adjusting the gain, integration time, images size, and image clarity. Once the image processing is completed, the processed image is sent to the host PC via the board’s USB Serial or WiFi by Ethernet.

The EVB90640-41 evaluation board is engineered to bridge the gap between the high-performance LWIR imaging technology and the mass market by providing a comprehensive testing platform for users to customize their cameras to their needs. Its combination of USN Serial and Wi-Fi by Ethernet capabilities allows integration into virtually any system and environment. Additionally, its simple working principle and strong image processing capabilities makes it an ideal platform for various industrial applications in surveillance, process control, and environmental monitoring.

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