An Exceptionally Small UV Sensor

Most of the hacks we see hitting the tip line are exactly that – hacked up hardware projects held together with hot glue and duct tape. [x-labs]’ entry for the 2015 Hackaday Prize, the UV Sensor, is certainly not one of these projects. It’s a professional one-off, capable of displaying the UV index, temperature, humidity, and pressure in one tiny little enclosure.

The UV badge is designed to be used outdoors. This means any old display ripped from a Nokia phone won’t do; that will wash out in the sun. Instead, [x-labs] is using a very sunlight-readable Sharp Memory LCD. A nice choice, as it’s an exceptionally low-power device.

Inside the 54 x 34 x 7.1 mm 3D printed enclosure is a very thin PCB, and all surface-mount components. The device is powered by a single coin cell battery that should give months of run time.

With a product designed so well, we’re wondering if the UV badge will be in the running for the Best Product category of the Hackaday Prize this year. There aren’t many projects in the running, and the winner gets a enough funding, machinery, and experience to turn their project into a product.

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