Yocto-light-v3

Yocto-Light-V3

  

The Yocto-Light-V3 device is a USB ambient light sensor (lux meter) which allows you to measure ambient light up to 100'000 lux. Measurements can be read directly via USB or stored on the device internal flash for later retrieval when connected again by USB.

This device is a replacement for the Yocto-Light V1 which is not produced anymore. The response to light is closer to that of the human eye than the Yocto-Light-V2.

This circuit has been designed so that the sensor itself can be moved away from the USB part by a few meters: simply split the board into two parts and solder a 4-wire cable on the designated pads.

This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-g, it can even be connected to a GSM network thanks to the YoctoHub-GSM.

Yocto-Light-V3 Wires to be ordered separately Enclosure available separately

USB cables and enclosures to be ordered separately.

CHF 25.63

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Specifications

Product ID:LIGHTMK3
Product name:Yocto-Light-V3
USB connector:micro-B
Width:20mm
Length:35.5mm
Weight:3g
Sensor:BH1751FVI
Refresh rate:4Hz
Measuring range:0...100'000lux
Sensitivity:0.25lux
IEC protection class:class III
Normal operating temperature:5...40░C
Extended operating temperature1:-30...85░C
Supported Operating Systems:Windows (PC + IoT), Linux (Intel + ARM), macOS, Android
Drivers:no driver needed
API / SDK / Libraries:C++, Objective-C, C#, VB.NET, UWP, Delphi, Python, Java, Android
API / SDK / Libraries (TCP only):Javascript, Node.js, PHP
RoHS compliance:RoHS III (2011/65/UE+2015/863)
Suggested enclosure:YoctoBox-Short-Thin-Black
Cables and enclosures:available separately
Harmonized tariff code:8542.3190
Made in:Switzerland


1 The extended temperature range is defined based on components specifications and has been tested during a limited duration (1h). When using the device in harsh environments for a long period of time, we strongly advise to run extensive tests before going to production.

Accessories and related products

YoctoBox-Short-Thin-Black, Enclosure for Yoctopuce device (short, thin, black)USB-A-MicroB-50, USB 2.0 type A to Micro-B data cable, 50 cmYoctoHub-Ethernet, Ethernet-enabled hub for Yoctopuce modules

Related articles and application examples

Downloads

User manual (HTML)
User manual (PDF)
Product brief
Blueprints
3D file (STEP)
RoHS certificate
Most recent firmware37128 (09/12/2019)
Library for Javascript37780 (10/23/2019)
Library for PHP37780 (10/23/2019)
Library for Objective C37780 (10/23/2019)
Library for C++37780 (10/23/2019)
Library for C#37796 (10/24/2019)
Library for VisualBasic .NET37780 (10/23/2019)
Library for Delphi37780 (10/23/2019)
Library for Python37780 (10/23/2019)
Library for Java37913 (10/29/2019)
Library for Android37913 (10/29/2019)
Library for Command line35652 (06/05/2019)
Virtual Hub for Windows37780 (10/23/2019)
Virtual Hub for Linux, Intel + ARM37780 (10/23/2019)
Virtual Hub for Mac-OS-X37780 (10/23/2019)


Add a comment 5 comments


1 - norran Sunday,september 10,2017 21H31

Hi,

I'm suprised new desktop motherboards don't come with light sensors and was therefore very happy to find this product.

You claim that it don't need any drivers. Does that mean that Windows will automatically register this as a light sensors common in laptops and use it to adjust my external screens brightness?

Or is that a no go since my screen is external? (However, this tool seems to indicate that it is possible for software to adjust my monitor: http://clickmonitorddc.bplaced.net/)

Thankful for any help I can get.

2 - varkenvarken Monday,february 11,2019 16H43

Hi,

When separating the sensor unit from the main module, what does 'a few meters' mean? ;-) would 4 meters be possible? Would it be possible to extend that range by using a shielded or twisted pair cable or is resistance the limiting factor here?

Thanks,

-- michel.

3 - martinm (Yocto-Team)Monday,february 11,2019 16H47

@varkenvarken: Up to 10 meters should be fine. Indeed the wire quality will affect the distance.

4 - youry Wednesday,october 09,2019 19H57

Hi,

To witch class of the norm DIN 5032-7 this sensor corresponds to?

Thanks
Youry

5 - mvuilleu (Yocto-Team)Thursday,october 10,2019 9H16

@youry: this sensor is not sold as certified for accuracy according to DIN standard. We rely on ROHM sensor factory calibration. See the blog description for the response curve to wavelengths, or the datasheet of the BH1751FVI sensor for more detailed information about factory calibration accuracy.

Yoctopuce, get your stuff connected.