https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL17220_%E2%80%93_MLX90640-D55_Thermal_Camera%2Fen 2026-10-23T21:51:51Z Versionsgeschichte dieser Seite in JW Tech Wiki MediaWiki 1.43.9 https://wiki.jw-tech.eu/index.php?title=WSAL17220_%E2%80%93_MLX90640-D55_Thermal_Camera/en&diff=1396&oldid=prev 2026-09-05T22:29:00Z

<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p> <p><b>Neue Seite</b></p><div>__NOINDEX__<br /> &#039;&#039;&#039;Documentation notice:&#039;&#039;&#039; This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.<br /> <br /> == Summary ==<br /> The MLX90640-D55 is a 32×24-pixel infrared array thermal imaging camera with a 55° horizontal field of view and an I2C interface. It is accessed over I2C (default address 0x33) and supports 3.3 V or 5 V operating voltages.<br /> <br /> == Related products at JW Tech ==<br /> * [https://shop.jw-tech.eu/p/WSAL17220 WSAL17220 – MLX90640 IR Array Thermal Imaging Camera, 32×24 Pixels, 55° FOV]<br /> <br /> == Technical overview ==<br /> * Resolution: 32 × 24 pixels, 768 IR sensors in total (thermopile).<br /> * Field of view: 55° horizontal, 35° vertical; designed for distance measurement.<br /> * I2C bus: default device address 0x33; the bus supports fast mode up to 1 MHz.<br /> * Operating voltage: 3.3 V or 5 V; onboard level shifter allows direct connection to a 5 V I2C bus.<br /> * Operating current: less than 23 mA.<br /> * Operating temperature range: −40 °C to +85 °C.<br /> * Target temperature range: −40 °C to +300 °C; resolution ±1 °C.<br /> * Refresh rate: programmable between 0.5 Hz and 64 Hz; controlled via control register 1 (0x800D), bits 7–9 select the rate, bit 12 selects chessboard or TV interleave mode.<br /> * Dimensions: 28 mm × 16 mm; mounting hole 2.0 mm diameter.<br /> * Applications: non-contact temperature measurement, industrial temperature control, motion detection.<br /> <br /> == Notes and version constraints ==<br /> * The manufacturer allows up to four defective pixels out of the factory; these are marked in the EEPROM. Defective pixels are not grounds for return or exchange; using the average value of adjacent pixels is recommended as a substitute.<br /> * The source does not provide exact measurement-distance values; the stated test figures (e.g., contour recognition up to about 5 m for D55) come from internal Waveshare tests under defined conditions (room temperature 22 °C, dim light, 178 cm tall person).<br /> * The IR wavelength range is given as 5.5–14 µm; specific calibration parameters and emissivity settings must be adjusted according to target material.<br /> * Examples for Raspberry Pi, ESP32 and STM32 are mentioned, but the concrete code snippets are missing from the provided source; integration therefore requires additional documentation.<br /> * The maximum frame rate is stated as 32 Hz in the FAQ, while the specification allows up to 64 Hz – please verify which figure applies to your project.<br /> <br /> == Source and revision record ==<br /> * [https://www.waveshare.com/wiki/MLX90640-D55_Thermal_Camera MLX90640-D55 Thermal Camera - Waveshare Wiki]<br /> * Source revision: 89963<br /> * Captured: 2026-08-31T04:07:35+00:00<br /> * SHA-256: &lt;code&gt;d026d24cdaef72bc01c316747b7507aaa5d41772af30c30fd0658d24e5ec9c78&lt;/code&gt;</div>

JWTechPublisher