SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492024-03-18T21:09:54-06:00SparkFun ElectronicsCustomer #731787 on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Customer #731787urn:uuid:27fa6640-e13e-4b13-da75-1b1ac6b1207a2015-11-18T21:01:01-07:00<p>I had a question about the output this sensor gives off...
I'm using it with a basic stamp 2pe microcontroller and haven't been sure how to convert the analog output into lux. Is there a specific equation I have to use for this or are there several (like ones that include temperature, etc)?</p>
Eric C on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Eric Curn:uuid:88ea532a-9436-77de-24d7-4655b0d4f9982015-07-25T09:36:31-06:00<p>What is the range of possible values that this will return? 0 - 1023?<p>Thanks</p></p>
Customer #623311 on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Customer #623311urn:uuid:e4ac8ad5-9c9f-614b-6b15-3953284c573e2015-05-01T22:52:24-06:00<p>why 10k resistor? how to calculate this?</p>
Red Squirrel on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Red Squirrelurn:uuid:dc0cdc08-bc95-a5e2-15b9-3f7c85cbcb062015-04-24T22:00:45-06:00<p>Yes, but you should then set your analog voltage reference to 3.3v for a more representative result.</p>
Red Squirrel on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Red Squirrelurn:uuid:417439a1-52f3-7f47-3e99-918b59c5699b2015-04-24T21:58:41-06:00<p>Technically yes (you will get HIGH and LOW for certain amounts of light), but I suggest that you use analog to get an exact value.</p>
Red Squirrel on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Red Squirrelurn:uuid:d23b433e-a481-ec07-b220-c3e1c4bae1ba2015-04-24T21:57:47-06:00<p>Yes, the sensor is in place on the pcb.</p>
Red Squirrel on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Red Squirrelurn:uuid:4c65542d-ff00-06c2-e7e0-762c7f725b942015-04-24T21:53:34-06:00<p>I am using 5v with an arduino mega and this unit really impresses me. Note that this sensor reports close to 0v even when in moderate light, and you must use a bright light to get 5v out.<p>UPDATE: This sensor also has a very large light receiving area as even lights pointed at it from the side trigger high readings. Still happy with it!</p></p>
stevenvh17 on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000stevenvh17urn:uuid:3626d124-db59-dab6-fa59-44fb61e644c42015-04-10T05:27:51-06:00<p>Yes it will. The series resistor determines the output voltage. If there's so much light that the output would want to go higher than 3.3V, decrease the resistor value.</p>
stevenvh17 on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000stevenvh17urn:uuid:abde4b93-79d8-49e6-fc88-347bfd4acbda2015-04-10T05:21:55-06:00<p>SFE, how about a breakout board with this sensor and a logarithmic amplifier? I don't care for the difference between 100 lux and 105 lux, which you won't notice anyway, but I do care about the difference between 10 lux, 100 lux and 1000 lux. Log amp, please!</p>
stevenvh17 on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000stevenvh17urn:uuid:15d22711-00b7-8320-cc48-e751e7df5d9c2015-04-08T10:59:22-06:00<p>With a photoresistor you build a voltage divider which is anything but linear, this one is linear. Also, a phototransistor has a much wider range and is faster. Phototransistors are being used to trigger slave strobe light in photostudios, a photoresistor is orders of magnitude too slow for this.</p>
M-Short on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000M-Shorturn:uuid:c0fa67d8-6781-6cc3-bd81-9b0749256be32015-02-23T09:24:21-07:00<p>It comes on the board.</p>
Customer #652954 on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Customer #652954urn:uuid:86fa9b7f-ce4d-91f4-79c5-3a03f45e1ba22015-02-22T19:41:58-07:00<p>Would i have to buy the sensor itself? or does it come with the breakout board?</p>
Customer #652954 on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Customer #652954urn:uuid:7ee471b7-91dc-d35f-bfbe-4461d063e7152015-02-22T17:18:44-07:00<p>Does This come with the sensor itself? or do i have to buy it seperatly?
THX</p>
Customer #565396 on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Customer #565396urn:uuid:90afb14c-fab9-28c3-2216-06c50ebb9a642014-10-29T16:16:05-06:00<p>U can use digitall read with it</p>
Ogre on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Ogreurn:uuid:a7ba9055-86ad-a3fe-0336-32be62e7cc322014-07-21T13:53:10-06:00<p>Would this be a good device for measuring and data logging sunlight in a garden? Also, is there a waterproof version, or a good way to waterproof this without diffusing the light from hitting the sensor? Thanks!</p>
pu241 on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000pu241urn:uuid:8d4e7723-6fb5-90d4-32c1-3821798b24442014-04-06T08:06:10-06:00<p>The data sheet shows an input capacitance (C) of 16 pF. The breakout schematic shows a 10K resistance (R) in series. R*C = 160 nS; the RC time constant. Lets call it 200 so that 5 time constants is 1 microsecond. So my, rough guess, expectation is that you should be able to get at least 500 kHz "bandwidth". My guess is that it would handle any "fast" Arduino project, for example a lightning flash sensor. Another post (Skye) indicates a 15 usec response. Still fast enough for most general light sensing. I think its time for me to get one and test it!</p>
Customer #501588 on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Customer #501588urn:uuid:1f3635f2-feda-b7d3-018f-cd255804531a2014-01-11T20:53:15-07:00<p>Would anyone happen to know the bandwidth for this summabitch? I haven't been able to find it anywhere, including Vishay's website.</p>
n on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000nurn:uuid:ff458ba7-05d7-5040-8c16-b0ec5d51be832013-04-11T02:18:13-06:00<p>The ISL76671 is a newer, more sensitive analog light sensor, for very low light levels. Please make a breakout board for it! :)</p>
samotage on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000samotageurn:uuid:6d3e1e35-0e4b-df56-ca72-6eb792a4ae752013-01-30T18:36:59-07:00<p>Exhibits wonderful non-linearity in the output... Go code yourself a correction algorithm...</p>
dgerton on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000dgertonurn:uuid:7b507cfc-89ce-9346-12eb-eec7674a35a82012-07-24T18:08:26-06:00<p>Yeah, I'm kinda wondering the same thing.</p>
waspinator on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000waspinatorurn:uuid:c6aa630b-f4f5-37c6-05c6-c26a16360b242012-07-16T22:24:42-06:00<p>why use this instead of a photoresistor?</p>
Skye on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Skyeurn:uuid:0fed5b9e-bdf1-063c-8faf-be5bcebc6cfa2011-08-18T09:00:00-06:00<p>Although the datasheet does not provide this information, an email to Vishay got some dynamic response data. The upshot is that for the fastest response to changing light conditions one must have a high current flowing through the device. Icmax is defined at 20ma. With the 10K resistor (assuming no current out the signal line), and a 5 volt supply, than the maximum collector current is 5/10K or a tiny 500 micro amps. At this condition, rise and fall times are around 15 micro seconds. Increase Ic (by lowering the value of the resistor) and you can drop the times to bellow 10 usec.</p>
glennfish on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000glennfishurn:uuid:688fcc6c-3274-fddd-c1f9-669963a73a012011-07-24T06:38:56-06:00<p>Amazingly simple to use.<br>
I'm using it as a trigger in a spectrometer, gives the go signal when the emission starts.<br>
highly stable and incredibly easy to work with. Only problem is, my fingers are too big</p>
Solarbotics Ltd. on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Solarbotics Ltd.urn:uuid:63c1f89b-8e58-eeeb-a1c7-36cb74aaddef2011-06-02T11:06:33-06:00<p>Suggestion: Why not use the regular G/V/S layout for pinout? Gnd / Vcc / Signal? Then it'd match practically any servo connector wire pinout.</p>
Robert Cook on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000Robert Cookurn:uuid:0247dc31-5d65-5999-d557-f72f1818866c2011-03-27T20:09:25-06:00<p>Remarkable. I swapped this in place of a potentiometer in my Arduino project and it worked exactly as expected without any changes. It's great to have this as a breakout.<br>
Now I have to modify the software to provide some dampening.</p>
alfmar on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000alfmarurn:uuid:7d7f35a2-d238-15f0-8587-7e8ffad56e5a2010-03-22T16:32:40-06:00<p>I'm using it at 3.3v (with a "mbed - LPC1768 Development Board" bought on Sparkfun as well). Just works.</p>
deepblue on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000deepblueurn:uuid:e636221c-1cc0-3fcf-9042-a4602f8c83b92009-12-29T14:49:51-07:00<p>I would like to use this in an application where I need much higher resolution, but it won't need to measure more than 2 lux or so. If I just put a big resistor on the ground pin, will that effectively multiply the voltage on the signal pin? Also, while this won't need to actively measure more than 2 lux, it will still regularly be exposed to 100+ lux while it's on. If putting the resistor on there will fry a 5V picaxe I/O pin, it won't work.<br>
If this doesn't work, I'd appreciate any ideas for something that would. I would just use a CdS photoresistor, but linearity is very helpful.</p>
joachimp on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000joachimpurn:uuid:4050d31d-c923-e397-2986-2c453b9b1e022009-03-09T23:05:00-06:00<p>datasheet 404'd:( I found it <a href="http://www.datasheetcatalog.org/datasheet2/1/037uup9lyrzdh1ayjsxwl5epueky.pdf" rel="nofollow">here</a></p>
mouser on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000mouserurn:uuid:3cce0d01-46c4-3526-162a-f1edcf2c2abc2008-08-29T04:56:41-06:00<p>What are you doing with it that requires significant current? I was going to sample it with a high-impedance ADC input. I'm assuming I don't need to buffer that, right?)</p>
madbadger on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000madbadgerurn:uuid:7b8c2bc4-ef1d-f18d-2494-e365a06acced2008-08-18T06:23:52-06:00<p>Yes, I'm using it at 3.3v. Just keep in mind, the current out of this thing is small; I'm buffering it using an op-amp.</p>
mouser on BOB-08688 - SparkFun Ambient Light Sensor Breakout - TEMT6000mouserurn:uuid:7db417aa-051a-90dc-64c3-1617dbbcb0992008-08-16T12:12:17-06:00<p>Anyone know if this will work at 3.3V?</p>