This little sensor is a great way to add UV light sensing to any microcontroller project. The VEML6070 from Vishay has a true UV A light sensor and an I2C-controlled ADC that will take readings and integrate them for you over ~60ms to 500ms.
Unlike the Si1145, this sensor will not give you UV Index readings. However, the Si1145 does UV Index approximations based on light level not true UV sensing. The VEML6070 in contrast does have a real light sensor in the UV spectrum. It’s also got a much much simpler I2C interface so you can run it on the smallest microcontrollers with ease.
Unlike the GUVA analog sensor, the biasing and ADC is all internal so you don’t need an ADC.
This UV sensor works great with 3 or 5V power or logic, its nice and compact, and its easy to use with any I2C-capable microcontroller. Each order comes with one assembled PCB with a sensor, some handy pullup resistors, a 270K rset resistor and a small piece of header. Some light soldering is required to attach the header but its a fast task!
Check out our tutorial for details on on how to use this sensor, including files, code and assembly!
Technical Details
VEML6070 Details:
- UV spectrum sensitivity: 320-410nm (peak at 355nm)
- Voltage Supply: 2.7-5.5V
- Schematic, Datasheet, EagleCAD PCB files, and Fritzing available in the product tutorial
Product Dimensions: 14.0mm x 13.0mm x 3.0mm / 0.6″ x 0.5″ x 0.1″
Product Weight: 0.5g / 0.0oz
Fast Shipping with Professional Packaging
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It is important to note that orders with multiple items are subject to a processing period that is based to the particular item.
Prior to shipping, our team will perform an extensive inspection of the products you have ordered. Most orders today are shipped in 48 hours. The expected delivery time will be between 3 and 7 days.
Returns
Due to the multiple parties involved such as the factory and the warehouse, we cannot completely manage our stock. The actual levels of stock can change at any moment. It's possible that you may not receive your order once the order has been made.
Our policy is for 30 days. If 30 days have gone without a trace since the purchase however, we're unable to give you a return or exchange.
You are able to return a product in the event that it is not used and still in the same state as when you first received it. The item must be returned in its original packaging.
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