Product Details
The DFRobot Gravity LTR390-UV sensor is a top - notch device for ambient light and UV sensing. It has a UV spectral response from 280nm to 430nm and outputs raw data. With high sensitivity, quick response, and strong anti - interference ability, it stands out in the market. This UV module comes with a built - in ADC and MCU, which can convert light data into a digital signal. You can output this signal via I2C or UART interfaces. It's extremely versatile, perfect for light experiments, outdoor UV detection, and any situation where UV or ambient light monitoring is needed. Key features include support for I2C and UART communication, compatibility with 3.3V and 5V, 13 to 20 bits of effective resolution, an adjustable gain range of 1, 3, 6, 9, and 18, an interrupt function with programmable upper and lower thresholds, and a spectral response close to the human eye. Applications are diverse, such as UV and light intensity detection, weather experiments for teaching, light detection experiments, and in devices for monitoring UV index and outdoor UV detection. The specification details include a LTR390 - UV - 01 chip, an operating voltage of DC 3.3V to 5V, an operating current of about 2.73mA (18 - bit data acquisition with a time of 100ms), I2C and UART communication interfaces, a UV response wavelength of 280nm to 430nm, an ALS spectral response wavelength of 450nm to 700nm, digital output, and dimensions of 32mm×27mm/1.26×1.06”. Documents available are product wiki, STP 3D model, 2D CAD dimension, 2D_CAD, schematics, and UV datasheet. The shipping list includes one Gravity: LTR390 - UV Sensor and one Gravity - 4P I2C/UART Sensor Cable.
Using the DFRobot Gravity LTR390 UV Light Sensor is quite straightforward. First, connect the sensor to your device using the provided Gravity - 4P I2C/UART Sensor Cable. You can choose to use the I2C or UART communication interface according to your needs. When using it for experiments or detection, place the sensor in an appropriate location where it can effectively sense the ambient light or UV. For outdoor use, make sure it's not directly exposed to harsh weather conditions for a long time. When it comes to maintenance, keep the sensor clean. You can use a soft, dry cloth to wipe it gently if it gets dirty. Avoid using any harsh chemicals or abrasive materials as they may damage the sensor. Also, check the connection regularly to ensure it's stable. If you're having trouble with the sensor, refer to the product wiki for troubleshooting tips. And always make sure the operating voltage is within the specified range of 3.3V to 5V to prevent any damage to the sensor.
