LUX1000 User Guide - Revision history

Mparadis at 21:17, 17 January 2022

2022-01-17T21:17:11Z

← Older revision		Revision as of 21:17, 17 January 2022
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	{{UGC-DataInterval}}		{{UGC-DataInterval}}
	{{UGC-Graphing}}		{{UGC-Graphing}}
			{{UGC-Firmware}}
	{{UGC-Entry\|Dynamic Gain and Sampling\|		{{UGC-Entry\|Dynamic Gain and Sampling\|
	\|		\|

Mparadis at 19:30, 3 August 2021

2021-08-03T19:30:11Z

← Older revision		Revision as of 19:30, 3 August 2021
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	'''2.''' Double click on the channel to open an example program. This channel belongs to the '''Light Sensor''' channel class:		'''2.''' Double click on the channel to open an example program. This channel belongs to the '''Light Sensor''' channel class:
	{{UGC-Start}}		{{UGC-Start}}
	~~{{UGC-OpenAll}}~~
	{{UGC-Entry\|Light Phidget: \|Measures the illuminance in the area the LUX1000 is facing		{{UGC-Entry\|Light Phidget: \|Measures the illuminance in the area the LUX1000 is facing
	\|		\|
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	{{UGC-Start}}		{{UGC-Start}}
	~~{{UGC-OpenAll}}~~
	{{UGC-Addressing}}		{{UGC-Addressing}}
	{{UGC-DataInterval}}		{{UGC-DataInterval}}

Mparadis at 18:43, 29 July 2021

2021-07-29T18:43:14Z

← Older revision		Revision as of 18:43, 29 July 2021
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	'''2.''' Double click on the channel to open an example program. This channel belongs to the '''Light Sensor''' channel class:		'''2.''' Double click on the channel to open an example program. This channel belongs to the '''Light Sensor''' channel class:
	{{UGC-Start}}		{{UGC-Start}}
			{{UGC-OpenAll}}
	{{UGC-Entry\|Light Phidget: \|Measures the illuminance in the area the LUX1000 is facing		{{UGC-Entry\|Light Phidget: \|Measures the illuminance in the area the LUX1000 is facing
	\|		\|

Mparadis: /* Part 4: Advanced Topics and Troubleshooting */

2021-07-29T18:05:22Z

Part 4: Advanced Topics and Troubleshooting

← Older revision		Revision as of 18:05, 29 July 2021
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	{{UGC-Start}}		{{UGC-Start}}
			{{UGC-OpenAll}}
	{{UGC-Addressing}}		{{UGC-Addressing}}
	{{UGC-DataInterval}}		{{UGC-DataInterval}}

Mparadis: /* Explore Your Phidget Channels Using the Control Panel */

2021-03-17T16:59:50Z

Explore Your Phidget Channels Using the Control Panel

← Older revision		Revision as of 16:59, 17 March 2021
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	{{UGC-Start}}		{{UGC-Start}}

	{{UGC-Entry\|Light ~~Sensor~~: \|Measures the illuminance in the area the LUX1000 is facing		{{UGC-Entry\|Light Phidget: \|Measures the illuminance in the area the LUX1000 is facing
	\|		\|
	In your Control Panel, double click on "Light Phidget":		In your Control Panel, double click on "Light Phidget":

Mparadis at 20:37, 28 January 2021

2021-01-28T20:37:02Z

@@ Line 4: / Line 4: @@
 [[Category:UserGuide]]
 ==Part 1: Setup==
-{{UGIntro|LUX1000}}
+{{PT1 Deck Sequence}}
 == Part 2: Using Your Phidget ==

Mparadis: /* Part 4: Advanced Topics and Troubleshooting */

2021-01-06T21:20:42Z

Part 4: Advanced Topics and Troubleshooting

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	{{UGC-Addressing}}		{{UGC-Addressing}}
	{{UGC-DataInterval}}		{{UGC-DataInterval}}
			{{UGC-Graphing}}
	{{UGC-Entry\|Dynamic Gain and Sampling\|		{{UGC-Entry\|Dynamic Gain and Sampling\|
	\|		\|

Mparadis at 18:42, 21 April 2020

2020-04-21T18:42:14Z

← Older revision		Revision as of 18:42, 21 April 2020
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	__NOINDEX__		__NOINDEX__
			__NOTOC__
	<metadesc>The Light Phidget measures the ambient light level from 188 μlux to 220 klux and connects to a port on your VINT Hub.</metadesc>		<metadesc>The Light Phidget measures the ambient light level from 188 μlux to 220 klux and connects to a port on your VINT Hub.</metadesc>
	[[Category:UserGuide]]		[[Category:UserGuide]]
	==~~Getting Started~~==		==Part 1: Setup==
	{{UGIntro\|LUX1000}}		{{UGIntro\|LUX1000}}
	*[{{SERVER}}/products.php?product_id=LUX1000 LUX1000 - Light Phidget]		*[{{SERVER}}/products.php?product_id=LUX1000 LUX1000 - Light Phidget]
Line 18:		Line 19:
	{{UGIntroDone\|LUX1000}}		{{UGIntroDone\|LUX1000}}

	~~==Using the LUX1000==~~
	{{UGcontrolpanel\|LUX1000}}		{{UGcontrolpanel\|LUX1000}}

	~~{{ugLightSensor}}~~

	~~{{ugAddressingInformation}}~~		== Part 2: Using Your Phidget ==

	~~{{ugUsingYourOwnProgram\|~~LUX1000}}		===About===
			The LUX1000 measures brightness (illuminance) from 188 microlux (starlight on a moonless night) to 220,000 lux (direct sunlight).

	~~==Technical Details==~~		[[Image:LUX1000-about.jpg\|850px\|link=]]
	~~=== Current Consumption ===~~
	~~Current consumption on the~~ LUX1000 ~~is dependent on the sampling interval you choose. More current is used for frequent samples~~.

	~~[[Image:LUX1000_Current.jpg\|link~~=~~\|center]]~~		===Explore Your Phidget Channels Using the Control Panel===

	~~===Dynamic Gain and Sampling===~~		You can use your Control Panel to explore your Phidget's channels.
	~~The LUX1000 is able~~ to ~~measure the intensity of light in the impressive range of 188µlx to 220klx. It~~'s able to work in such a wide range is due to its ability to dynamically change the gain value on its measurements, in addition to changing the amount of integration time taken per measurement. Changing the gain coarsely affects the range, while changing the integration time finely affects the range [[Image:LUX1000_response.jpg\|link=\|375px\|thumb\|The response of the photodiodes depending on the wavelength of the incoming light.]]
	Because of these dynamic ranges, you may see momentary saturation when trying to measure large changes in light intensity in short periods of time (for example, a strobe light). Once the light level stabilizes though, the sensor should be able to settle back into optimal range settings.

	~~===Spectral Response===~~		'''1.''' Open your Control Panel, and you will find the '''Light Phidget''' channel:
	~~The light sensor on the LUX1000 is designed to sense light in a way that emulates the response of the human eye~~. ~~However~~, ~~digital light sensors work very differently than our eyes do. Using the photoelectric effect, the photodiodes in the sensor~~ will ~~generate current when struck by incoming photons. The problem is that~~ the ~~range of wavelengths that these photodiodes respond to vary depending on what materials they~~'~~re made of, and none of them have the same response as the human eye.~~

	The solution offered by the chip used in the LUX1000 is to take readings from two different photodiodes~~; one that~~ detects only IR light (~~which is~~ invisible to the human eye) and one ~~that~~ detects both visible and IR light. ~~Once it has these~~ measurements~~, it weights them~~ with coefficients based on calibration testing~~, and then subtracts~~ the IR component from the ~~diode that detects both~~ IR and visible light. The result is a workable approximation of brightness as seen by a human eye.		[[Image:LUX1000_Panel.jpg\|link=\|center]]

			'''2.''' Double click on the channel to open an example program. This channel belongs to the '''Light Sensor''' channel class:
			{{UGC-Start}}

			{{UGC-Entry\|Light Sensor: \|Measures the illuminance in the area the LUX1000 is facing
			\|
			In your Control Panel, double click on "Light Phidget":
			[[Image:LUX1000-LightSensor.jpg\|center\|link=]]}}

			{{UGC-End}}

			{{UG-Part3}}

			== Part 4: Advanced Topics and Troubleshooting ==

			{{UGC-Start}}
			{{UGC-Addressing}}
			{{UGC-DataInterval}}
			{{UGC-Entry\|Dynamic Gain and Sampling\|
			\|
			[[Image:LUX1000_response.jpg\|link=\|375px\|thumb\|The response of the photodiodes depending on the wavelength of the incoming light.]]
			The LUX1000 can measure the intensity of light in the range of 188µlx to 220klx. The device achieves this wide range due to its ability to dynamically change the gain value on its measurements, in addition to changing the amount of integration time taken per measurement. Changing the gain coarsely affects the range, while changing the integration time finely affects the range.

			Because of these dynamic ranges, you may see momentary saturation when trying to measure large changes in light intensity in short periods of time (for example, a strobe light). Once the light level stabilizes, the sensor will settle back into optimal range settings.}}
			{{UGC-Entry\|Spectral Response\|
			\|
			The light sensor on the LUX1000 is designed to sense light in a way that emulates the response of the human eye. However, digital light sensors work very differently than our eyes do. Using the photoelectric effect, the photodiodes in the sensor will generate current when struck by incoming photons. The problem is that the range of wavelengths that these photodiodes respond to vary depending on what materials they are made of, and none of them have the same response as the human eye.

			The solution, offered by the chip used in the LUX1000, is to take readings from two different photodiodes. One photodiode detects only IR light (light invisible to the human eye), and one photodiode detects both visible and IR light. The device weights the measurements with coefficients based on calibration testing. Then takes the difference between the IR component from the combined IR and visible light. The result is a workable approximation of brightness, as seen by a human eye.}}

	~~<br clear="all">~~

	{{~~UGnext\|~~}}		{{UGC-End}}

Jdecoux at 16:31, 17 October 2019

2019-10-17T16:31:36Z

← Older revision		Revision as of 16:31, 17 October 2019
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	{{ugAddressingInformation}}		{{ugAddressingInformation}}

	{{ugUsingYourOwnProgram\|~~This Phidget is compatible with the {{ExampleLink\|LightSensor}}.~~}}		{{ugUsingYourOwnProgram\|LUX1000}}

	==Technical Details==		==Technical Details==

Jdecoux: /* Using Your Own Program */

2018-08-28T16:57:28Z

Using Your Own Program

← Older revision		Revision as of 16:57, 28 August 2018
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	{{ugAddressingInformation}}		{{ugAddressingInformation}}

	~~===Using Your Own Program===~~		{{ugUsingYourOwnProgram\|This Phidget is compatible with the {{ExampleLink\|LightSensor}}.}}

	~~You are now ready to start writing your own code for the device. The best way to do that is to start from our examples:~~

	This Phidget is compatible with the {{ExampleLink\|LightSensor}}.

	Once you have your example, you will need to follow the instructions on the page for your programming language to get it running. To find these instructions, select your programming language from the [[Software_Overview#Language_Support\|Software Overview]] page.

	==Technical Details==		==Technical Details==