Hi, the text at 4:00 is too small, and thanks for the great content
@AndreasSpiess4 жыл бұрын
Thanks for the feedback. I started to use OBS and did not get everything right. Next time I will change it.
@TheHellis4 жыл бұрын
@@AndreasSpiess you can just crop the view in your video editing software.
@gg-gn3re4 жыл бұрын
@@TheHellisYea but in OBS he can just drag it to be bigger part of the screen which is easier than editing software.
@pandoracrab4 жыл бұрын
Timely recording for me. I was trying to get UV readings with a VEML6075. Reads nicely but discovered it is very directional. I'd need a solar tracker for it to measure solar UV consistently.
@martin.pokorny4 жыл бұрын
I like your videos, Andreas. They have a good "signal/noise ratio"
@AndreasSpiess4 жыл бұрын
Cool, thanks
@userou-ig1ze3 жыл бұрын
i.e. concise
@benmeadors67994 жыл бұрын
These sensor / board comparison videos are my favorite. They're always informative and help me out in my projects.
@AndreasSpiess4 жыл бұрын
Thank you!
@martinsauerteig48824 жыл бұрын
Congrats: You hit the 200.000!! And again a great Video. Thanks for that and stay healthy. Have great easter holidays.
@AndreasSpiess4 жыл бұрын
Thank you. As an engineer I think in dB. So the next important step is 1 mio ;-) Happy Easter, too!
@engr.arslanhashmi27334 жыл бұрын
Yes he deserve for it
@mrmx2k4 жыл бұрын
Congrats Andreas!! Your videos should be within a Public Electronic Wikipedia as a reference! Greetings from Spain!
@AndreasSpiess4 жыл бұрын
Maybe one day ;-) Thank you
@ramoncomellas42454 жыл бұрын
Thanks again for a great video. I specially enjoy these compilation videos which compare similar devices and helps us followers save a lot of time searching for the info you kindly bring us in the usual well structured and easy to follow videos
@AndreasSpiess4 жыл бұрын
Glad you enjoyed it! These compilations help me too ;-)
@erikschatz3484 жыл бұрын
Thanks, Andreas! That will help me for an advanced line following modul. See you next UKW conference hopefully!
@AndreasSpiess4 жыл бұрын
We will see if hte borders are open till then ;-)
@juanrivera49384 жыл бұрын
Worked so hard trying to fix the APDS9960 with no luck, thank you!!!
@AndreasSpiess4 жыл бұрын
You are welcome!
@zrxav2 жыл бұрын
I want to thank you for your work. You've been so helpful, every time I want to buy a new sensor for a project there's a video of you trying the most common available and making a thoroughly made review about it. So, thank you you've made much lighter the work otherwise I've had to make in order to choose the right sensor for my project
@AndreasSpiess2 жыл бұрын
You are welcome. Glad my channel is helpful for you!
@AjinkyaMahajan4 жыл бұрын
You have covered all sensors in my treasure. Nice explanation. Thanks !!! ✨✨✌
@AndreasSpiess4 жыл бұрын
My pleasure 😊
@dirk-janfaber4 жыл бұрын
Thanks for the informative video. I made a rgb sensing setup yesterday using the AS7262 chip. Though expensive, it is easy to work with and accurate.
@AndreasSpiess4 жыл бұрын
I looked at the sensor in the past, but was driven away by the high price. Now I ordered one. Thanks for the tip!
@marcdraco21893 жыл бұрын
I love the way Andreas shares his own mistakes and that self-deprecating humour is wonderful!
@AndreasSpiess3 жыл бұрын
Thank you. We all make mistakes. The difference is how we deal with it...
@marcdraco21893 жыл бұрын
@@AndreasSpiess your method (I use a similar one) allows us to demonstrate to our peers and students that's to "err" is not just natural but part of a healthy learning process. By brushing our mistakes under the carpet or worse, denying them, we create an atmosphere of mistrust and fear that only hampers learning. Honestly Andreas, I wish there were more KZfaq instructors (and teachers in general) like you out there. Humanity would be far less self-destructive if there were.
@NullPointer4 жыл бұрын
This video arrived in the perfect time for me, today I was researching the detection of gamma and beta radiation using photodiodes as a replacement for Geiger-Müller tubes, so this video was very handy! Congrats for the 200k! :D
@AndreasSpiess4 жыл бұрын
Thank you! And good luck with your project.
@acpck4 жыл бұрын
Thanks for dedicating your time to another great video! :) Right now we are developing a project that needs a light sensor and after a close examination we've went fo the same IC TCS34725.
@AndreasSpiess4 жыл бұрын
Very cool!
@klassichd104 жыл бұрын
Thank you for your effort and time spent on this Topic. Regarding your awning: What also could be helpful for you is the cloudage. I am measuring far IR Temp with a Melexis MLX90614 and environmental Temp with an BM280 or SHT35 (you would prefere the Swiss one). Then I calculate (or rather more guess) the cloudage.
@AndreasSpiess4 жыл бұрын
This is a very interesting concept! Maybe I add a few additional sensors to my Lux meter and compare their readings...
@lohikarhu7344 жыл бұрын
@@AndreasSpiess him gokd sir...i, too was thinking about suggesting an IR sensor, as the luxmeter will not 'see' the IR that is heating your home...still, if it sees overall brightness, it would give a 'useful' correlation to insolation...
@stefankuhnen63054 жыл бұрын
I would love to see a Video on different sensor types and comparing the usefulness for this scenario.
@andrewbeasley4 жыл бұрын
Well that video brightened a dull day (sorry). Learnt a lot - never realised the sensors where so different. I’ll be following up the gesture sensor, thank you for publishing your code for that. One thing to note - a significant amount of ‘white’ paper is actually blue to give a clean cold look rather than a warm tint.
@AndreasSpiess4 жыл бұрын
You are right for teh paper (AFAIK not in all countries equally). But here I measured the spectrum of the diodes without paper. So both effects would add up :-(
@daves38194 жыл бұрын
Thanks for the video. I've been using the GY-49 / MAX44009 module for measuring lux in my greenhouse (to calculate the total moles of light the plants receive). It claims to have a range up to 188,000 lux.
@AndreasSpiess4 жыл бұрын
Thanks for the tip!
@MIsam-fv9kb4 жыл бұрын
hi Andreas i like those videos when you talk about different sensors and compare them keep up the good work , i think your channel will become the reference in sensors boards for arduino and MCUs
@AndreasSpiess4 жыл бұрын
Glad you like them!
@McTroyd4 жыл бұрын
You know the wife is paying attention when she starts mocking your engineering choices. :D Thanks for the comparison -- I hadn't even heard of half of these. Time for another shopping round...
@AndreasSpiess4 жыл бұрын
No hurry. Logistics anyway does not work properly for the moment. I am waiting and waiting...
@BerndFelsche4 жыл бұрын
An LED will also work as an ambient light detection sensor. First used IIRC by HP in calculators, measuring the voltage of 7-segment displays where the LED segment was off, to determine the current to drive the display segments, according to ambient light. So you wouldn't suffer retinal damage in the lab from a display readable in outdoor daylight.
@AndreasSpiess4 жыл бұрын
I assume they use the same effect as the phototransistors. But I di not know that they are very sensitive.
@andresbenitez774 жыл бұрын
I really like the last sensor
@AndreasSpiess4 жыл бұрын
Me too ;-)
@Inertia8884 жыл бұрын
In my current project I am designing a sensor for determining distance with a red 5mW laser diode. I would like to be able to use these readings to control the response of a small dc stepper motor for controlling an X/Y axis small milling table. I have a lot to learn and I am sure this information will set me in the right direction. I started thinking about this project only earlier today, so this video came out with perfect timing for my needs. Thank You for all of your help over the past few years that I have been developing my understanding of these concepts.
@AndreasSpiess4 жыл бұрын
Maybe you look also at the TOF and Lidar sensors.
@PhG19614 жыл бұрын
Nice video. Btw, don't worry, my wife also laughs with my experiments quite often.... so you're not alone ;-)
@AndreasSpiess4 жыл бұрын
Good to hear! Not really dangerous for usi, I think ;-)
@juancarlossoto37482 жыл бұрын
Sure, Maaaaan. I like your form to explaint the sensors that I use, thank you very much
@AndreasSpiess2 жыл бұрын
You are welcome!
@gustavoenriquejimenez80982 жыл бұрын
I worked in lighting for 10 years. The best light sensor in lux, in my humble opinion, is the Texas Instrument OPT3001. I scanned across the entire visible spectrum, from 380nm to 780nm in 20nm steps, and the sensor actually fits almost perfectly the CIE-defined eye sensitivity curve. It is the best light sensor I could measure. In addition to adjusting to the sensitivity of the human eye, it can measure from 0.1 lux to 100,000 lux. This dynamic range of measurement is amazing.
@AndreasSpiess2 жыл бұрын
Thank you for the tip. I ordered one.
@dave_dennis4 жыл бұрын
Hello Andreas, I have worked for TAOs since long before we were purchased by AMS. You are correct the TCS3200 is outdated. Also the TCS3414 as well. Neither of these have IR filters because when they were designed the technology to deposit the filter directly on the chip was new and very expensive. You are right the TCS34725 is the only AMS part you had that is not obsolete. BTW the Avago part is really an AMS part. TCS3223 I believe. AMS now has a TIme of Flight device you should try. This is very interesting part. Oh, and that TSL2561 was used as the Ambient Light Sensor by Apple in the very first iPhone. Those have a very wide dynamic range because you have an analog gain setting and you can also set the integration time from 2.7ms all the way up to 65535 x 2.7ms. Great video! DE N5BOC
@AndreasSpiess4 жыл бұрын
Thankl oyu for the info. I still struggle with both sensors out in the sunlight. As far as I see TCS34725 is saturated and the TSL 2561 sometimes provides strange values. I have to investigate further and also ordered some ND filters to reduce the light energy.
@sbmuthuraman3 жыл бұрын
Hi Andreas, video with lot of tehnical details and extensive comparison of different sensor available on the market. I feel bad that I did not find your video for this long time.. Once again Thank you so much.. I see a German accent in your explanation. Danke schön.
@AndreasSpiess3 жыл бұрын
Thank you for your nice words!
@r1273m4 жыл бұрын
Very interesting video, many of these devices I have never used. Things have certainly come a long way since the OCP71 (or OC71 with the paint scratched off!). I have a WEMOS which monitors the temperature and humidity in my loft, I think I will add a light sensor to warn if the loft lights are left on when the hatch is closed. Bob
@AndreasSpiess4 жыл бұрын
Yea, the world became simpler and better in this respect.
@christosmoutevelis48964 жыл бұрын
Happy Easter, Andreas! Thanks for another great video!
@AndreasSpiess4 жыл бұрын
You are welcome!
@yoginiprabhu80483 жыл бұрын
superb explanation of content and inclusion of initial targets and end results for complete understanding! God bless you this video came as ray of hope for my works!!
@AndreasSpiess3 жыл бұрын
Glad it was helpful!
@bf9452 жыл бұрын
Very glad to have found this channel and this video. Would like to have seen more info on UV sensors, particularly for a weather station to detect the UV level outdoors.
@AndreasSpiess2 жыл бұрын
You can find other UV sensors. Just make sure that the protection does not block UV (e.g. Glas blocks UV)
@Pixel_K4 жыл бұрын
Hello, I use the MAX44009 lux sensor from Maxim integrated, widely available from Aliexpress. I use it to adapt the brightness of my displays
@AndreasSpiess4 жыл бұрын
Thanks for the info!
@SimonCoates4 жыл бұрын
I use the same sensor on a GY-49.breakout board. However every Arduino library for the MAX44009 I downloaded had the same mistake in reading lux levels correctly. Looks like everyone copied the same error from the original library 😁 It's an excellent lux level sensor with a huge 22 bit dynamic range, ultra low current and IR/UV blocking filters.
@Pixel_K4 жыл бұрын
here is the code I use, is it okay ? #define DATA_LUX_HIGH 0x03 #define DATA_LUX_LOW 0x04 float MAX44009::getLux(void) { int luxHigh = readI2CAddr(DATA_LUX_HIGH); int luxLow = readI2CAddr(DATA_LUX_LOW); int exponent = ( luxHigh & 0xf0 ) >>4; int mant = ( luxHigh & 0x0f )
@SimonCoates4 жыл бұрын
// Request 2 bytes of data Wire.requestFrom(0x4A, 1); // Read 2 bytes of data luminance msb, luminance lsb if (Wire.available() == 1) { data[1] = Wire.read(); } // Convert the data to lux int exponent = (data[0] & 0xF0) >> 4; int mantissa = ((data[0] & 0x0F)
@electronic79794 жыл бұрын
a useful and educational video. liked it very much. The information you provided useful very well for me.
@AndreasSpiess4 жыл бұрын
Glad to hear that! Have a nice Sunday!
@3xAudio4 жыл бұрын
Always interesting ideas to get inspiration in the Arduino community thanks for sharing.
@AndreasSpiess4 жыл бұрын
Glad you enjoyed it!
@tablatronix4 жыл бұрын
wow , I thought I had alot of light sensor modules to test, wow Some of these I have never seen.
@AndreasSpiess4 жыл бұрын
And during cleanup I found two additional ones ;-)
@molitovv4 жыл бұрын
This video is right up my alley
@AndreasSpiess4 жыл бұрын
Good to know! Thanks.
@aruns3494 жыл бұрын
Thanks for a lovely video on light sensors! Really appreciate your work and dedication.
@AndreasSpiess4 жыл бұрын
My pleasure!
@PALTUBABY4 жыл бұрын
As always very informative and useful. Thank you Andreas :)
@AndreasSpiess4 жыл бұрын
My pleasure!
@daromee4 жыл бұрын
Thanks in advance for your comments
@meinsda59834 жыл бұрын
Great Work Andreas!
@AndreasSpiess4 жыл бұрын
Thanks a lot!
@asiw4 жыл бұрын
Very comprehensive as usual and a superb reference for the future.
@AndreasSpiess4 жыл бұрын
Glad you think so!
@Beeblzaphod4 жыл бұрын
Bloody hell, what a great video :-) Thanks a 1 000 000 for the content, very interesting and illuminating informations.
@AndreasSpiess4 жыл бұрын
Glad you enjoyed it
@BenjaminEggerstedt4 жыл бұрын
Frohe Ostern, Andreas und vielen Dank für die tollen Videos. Ich freue mich, dass du die 200.000 Abonnenten erreicht hast - ein großartiger Meilenstein: Gratulation! Bleib gesund in dieser schwierigen Zeit! Vielleicht brauchen wir jetzt eine Definition von dBs(ubscriber), dann wünsche ich alsbald +3dBs ;)
@AndreasSpiess4 жыл бұрын
Ich bin etwas spät für Osterwünsche. Dankeschön! Betreffend 200'000: Da denke ich in 10 dB und konzentriere mich auf die Million ;-)
@matneu274 жыл бұрын
Thank you for another interesting video in a series that will hopefully be continued 👍 At last no sensor or web based service can replace the wifes skills and predictions 😁
@AndreasSpiess4 жыл бұрын
You bet!
@niklasjohansson61954 жыл бұрын
Thanks for a great video! I use VEML7700 or VEML6030 mostly for it's low sleep current. Not at Aliexpress but at Adafruit as a module.
@AndreasSpiess4 жыл бұрын
Thanks for sharing!
@visperaschristopheremmanuel5133 жыл бұрын
It is helpful for my quantum photonics research.
@AndreasSpiess3 жыл бұрын
Glad to help!
@visperaschristopheremmanuel5133 жыл бұрын
@@AndreasSpiess. God bless Sir.
@avejst4 жыл бұрын
Great test as always Thanks for sharing 👍😁
@AndreasSpiess4 жыл бұрын
My pleasure!
@tonmommers79424 жыл бұрын
Very usefull these overviews of sensors.
@AndreasSpiess4 жыл бұрын
Thank you!
@mr.anonymous2983 жыл бұрын
Thanks for such a nice sensors comparison video.
@TanishqIsHere4 жыл бұрын
Greetings Andreas, I am working on a personal research project but because of quarantine I can not buy any precision light measuring sensors and had to use the LDR that I already had at hand, but due to LDR's extreme variance with the change in temperature, it is far from precise, stuck at home and cannot buy anything, so I had to come up with an alternative, so I am using LEDs as a light sensor, I have tested many LEDs and came to a conclusion that the LEDs which light up at least voltage give the best results. I kindly propose the idea for one of your future videos to analyze and show how feasible it is to use an LED as a light sensor. Regards, Tanishq
@LarryKapp14 жыл бұрын
Tanishq - maybe you are interested in this project - a solar tracker that uses LEDs as the sensor - he has lots of info on his webpage www.redrok.com/led3xassm.htm#led3xc3
@TanishqIsHere4 жыл бұрын
@@LarryKapp1 Thank you for sharing this project.
@JohanSchmidt854 жыл бұрын
Hi Andreas, thanks for another great video. I just want to mention that LEDs can also be used as light sensor for some applications. I am using an array of 3 LEDs for an ultra low cost 3-channel spectrometer.
@JohanSchmidt854 жыл бұрын
Here is a link wiki.analog.com/university/courses/electronics/electronics-lab-led-sensor
@AndreasSpiess4 жыл бұрын
Thank you for the link!
@et7524 жыл бұрын
Very comprehensive review.. .quite helpful to have for future reference
@AndreasSpiess4 жыл бұрын
Glad you liked it
@paede814 жыл бұрын
Yes there is another one which I prefer: The TEMT6000. I also use it to measure sunlight and control my sun roof
@AndreasSpiess4 жыл бұрын
Another viewer in the comments below reported that this one maxes out quite early. Do you have a trick?
@paede814 жыл бұрын
@@AndreasSpiess yes you are right, I checked my setup (weather station) again and it's an SI1145 which I use outdoor. I use the TEMT6000 as indoor sensor
@goofycker4 жыл бұрын
Welcome to the game of sensors...
@AndreasSpiess4 жыл бұрын
:-)
@PranavSharma25044 жыл бұрын
@andreas If you use a lux sensor for your awning you'll need to keep adjusting it every winter for when you want to sit out in the sun. It might be better to use a temperature sensor instead. Or maybe mix both (lux and temperature) and make some Node-RED flow for it! Sounds like a project! 😉
@AndreasSpiess4 жыл бұрын
node red should be able to do some simple if-then-else to avoid wrong extractions...
@manu8084 жыл бұрын
Great video! Thank you
@AndreasSpiess4 жыл бұрын
You are welcome!
@ManishMoorjmalani3 жыл бұрын
great work Andres
@AndreasSpiess3 жыл бұрын
Thank you!
@FF78244 жыл бұрын
Well done. (again) Thanks.
@AndreasSpiess4 жыл бұрын
You are welcome!
@morpheusde4 жыл бұрын
Danke für das wieder sehr informative Video, Andreas es sind die Sätze wie, meine Frau machte Witze über meine Fähigkeiten die mich jedes mal schmunzeln lassen und ich sozusagen eine tiefe Verbundenheit verspüre, mir geht es ja genauso. Oder so Sätze wie in deinem LoRaWAN Video als es darum ging die Pins vom Draginoboard einzutragen "Otherwise you scratch your head an nothing goes" (Video 117) soooooo genial :-) Hey schöne Ostern und bleibt gesund!
@AndreasSpiess4 жыл бұрын
Ich bin leider etwas spät für Osterwünsche. Danke! Ja, auf diesem Kanal sind viele ähnlich Interessierte Leute anzutreffen. Ich finde das sehr schön. KZfaq sei dank können wir uns so finden und etwas vernünftiges unternehmen...
@dimgwolukze1404 жыл бұрын
I recently use VEML6030/VEML7700 ALS sensor with perfect human eye response. Also have a look about VEML6040 RGB sensor. All from Vishay. Nice packaging, but a little bad interface
@AndreasSpiess4 жыл бұрын
Thank you for sharing your experience!
@LeifNelandDk4 жыл бұрын
Have you considered putting sensors in solar garden lights? You get a solar panel, a battery and an enclosure for a relatively cheap price. For instance temperature and moisture measurements in the greenhouse. You probably need a buck-converter to get the 3.3v needed from a 1.2NiCd or 3.2LiOn, but still. If the ESP went into deep sleep, and only sends occasionally, I guess most lamps could supply the power.
@AndreasSpiess4 жыл бұрын
Good idea. I started to build a combination of a Lux, an UV, and an RGB sensor. In addition it communicates via 2.4GHz LoRa. The MPU is an Arduino Mini which Igels it’s Takt from an RTC Module. Still a lot of LEDs, so I do not know the current consumption. But it needs some space.
@chrisw14624 жыл бұрын
Could you 'clear' up what is meant by 'clear' on the light sensor? I would think they mean 'white', but that's just a software combination of R, B, and G, so I'm unsure if they might mean something else.
@AndreasSpiess4 жыл бұрын
You can see teh curve in the data sheet. It seems to be a widebanc sensor.
@Willy_Tepes4 жыл бұрын
You can get filters for most wavelengths which is handy in some projects to filter out other types of light you are not interested in measuring and which can interfere with your results.
@AndreasSpiess4 жыл бұрын
You are right. We live in a very good time.
@arshaver4 жыл бұрын
At 10:19 you're talking about the TSL2591 as not recommended, but the red box on the left doesn't include that sensor. Looking at the AMS website, it actually says "Industry leading dynamic range which drives both ultra low light sensitivity and bright sunlight operation" about that sensor.
@AndreasSpiess4 жыл бұрын
I just read the content of this website. It is more for professional use in products
@typxxilps4 жыл бұрын
really great and extraordinary content ... but have just a view sensors you already mentioned.
@AndreasSpiess4 жыл бұрын
Thank you!
@maxtester88244 жыл бұрын
Happy Easter, Andreas! Great video! I wonder wether one of the proximity sensors would be accurate enough to use in a 3D printer for auto bed leveling?
@111chicane4 жыл бұрын
Those are nowhere near accurate enough. You may look at some TOF sensors
@maxtester88244 жыл бұрын
D Stanoev thanks for the feedback!
@111chicane4 жыл бұрын
@@maxtester8824 Welcome!
@ytubearbeit29444 жыл бұрын
If someone really wants to measure the human perceived color values, better use a tri-stimulus sensor in the XYZ colorspace. They are also made by AMS, an Austrian company. There is also an option for sensing 18 channels in parallel with 20nm bandwith for each channel.
@AndreasSpiess4 жыл бұрын
You are right. Unfortunately they are a little more expensive...
@WacKEDmaN4 жыл бұрын
ive got an "APDS-9960" but i cannot get it to work... from what ive read its actually only a APDS-9930.. which doesnt have the RGB functionality (what i purchaced it for!)..seems there a few fakes getting about...Thanks Andreas, i know what to look for what purchasing light devices now!
@AndreasSpiess4 жыл бұрын
I also found aan APDS9930 during my sensor "reconciliation" . But I did not try it.It is only proximity and ambient light. So probably no fake.
@WacKEDmaN4 жыл бұрын
@@AndreasSpiess yes the APDS-9930 is a real component.. i meant the fakes are that the boards are marked and being sold as APDS-9960 even tho its only got the APDS-9930 onboard
@theScottishAlien4 жыл бұрын
Grüezi from Zurich! I have a project currently based heavily on home sensors for monitoring house plants. Light is obviously an important variable to monitor so have been prototyping with lots of different breakout boards. Currently developing the design on a PCB and I've found that a lot of the lux sensors are hard to source when building yourself. Currently, I'm working with the BH1715 (poor results), VEML6030 (excellent I2C), and the TEMT6000 (analog, quite primitive). Would love to experiment with the UV as this is also an important aspect of plant health so will try to integrate a few extra sensors into the next version!
@AndreasSpiess4 жыл бұрын
Good project. A lot to learn, I think.
@theScottishAlien4 жыл бұрын
@@AndreasSpiess So much, always. Just finished up the design this weekend and have the VEML6075 UV sensor onboard :D. Once i'm at a point where it's worth seeing, I'll send you one for your mailbag!
@ligius34 жыл бұрын
Clear 10mm LED, two digital pins = very good detection of sunlight levels. In a nutshell, the LED is capacitively charged by feeding a reverse voltage into it (pins set to OUTPUT), then the decay of that voltage is measured as it slowly leaks into the (now) INPUT pins of the MCU. The more light there is, the faster it discharges. I've used it successfully for quite a few projects, no ADC needed.
@AndreasSpiess4 жыл бұрын
Good idea. Thanks!
@marcelachternaam92494 жыл бұрын
Do you have an example of this?
@ligius34 жыл бұрын
@@marcelachternaam9249 Search for "LED as light sensor". The sparkfun article explains how it works, the instructable article shows a sketch, the stackoverflow describes the principle, pasting the text here: Set Port A output high set Port B output low // this makes sure the led is discharged wait 1mS set Port A output low set Port B output high // reverse bias and charge wait 1mS set Port B as input // Port B is high impedance input time how long for Port B to read low
@juancarlosnarvaez38754 жыл бұрын
Good video Andreas. Greetings from Ensenada Mexico
@AndreasSpiess4 жыл бұрын
Hello there! Thank you
@Chris-ut6eq Жыл бұрын
Hope this amount will buy you are beer during your vacation! Enjoy your summer :)
@AndreasSpiess Жыл бұрын
Yes, for sure. Thank you! I too hope you will have a pleasant summer
@MultiPowerLoRd4 жыл бұрын
Andreas thank you for your vídeo. Excelent. I used APDS 9960 for a project wich needs to get light colour temperature (Kelvin) it is an excelent sensor.
@AndreasSpiess4 жыл бұрын
Thank you for sharing your experience!
@nonicnik4 жыл бұрын
For proximity and lux sensors there also is the SI114X series. I'm waiting for an SI1145 which can even approximate the UV Index by combining the IR and Visible Light sensors. Frohe Ostern
@AndreasSpiess4 жыл бұрын
Interesting sensor! Ordered ;-) Thank you
@jonnyenglisch10264 жыл бұрын
Frohe Ostern Andreas!
@AndreasSpiess4 жыл бұрын
Danke. Leider bin ich für ein "Ebenfalls" zu spät :-(
@christopherlawes92864 жыл бұрын
Great vid Andreas! I would really love instructional on how to make a colorimeter with ESP32.
@AndreasSpiess4 жыл бұрын
This is a very special area, so the chance I will cover it is small.
@christopherlawes92864 жыл бұрын
@@AndreasSpiess Sad to hear but, thanks for the reply and thanks for your great videos.
@albertox04044 жыл бұрын
Hi Andreas, nice video like always. I have a question for you :) On the ESP32, if someone creates a wifi Network with the same SSID and the ESP32 tries to connect to it, the password that it sends to the router is Encripted? Or the fake Router can know your password in plain text with this kind of attack? Thank you for your amazing videos. Thx from Spain ;)
@AndreasSpiess4 жыл бұрын
This has nothing to do with ESP32. This is a Wi-Fi security question. ESP32 uses the same technology as your Smarphone etc. So it should be save if your your router setup is ok
@RobertShaverOfAustin4 жыл бұрын
It would be very vulnerable if your password were sent in plain text over WiFi so I'm very sure it is encrypted.
@benni55414 жыл бұрын
The current network encryption (wpa2) is still holding strong and works with your shared network key. If your esp want acess to the network through the access point is requests a random number as a challange and then the esp computes a couple of computaions where the random number the network key and his own mac adress is needed. The esp will send his encrypted random number back to the access point for evaluation and voila if the key was right you are in. Be carful in reality its even more complicated with more numbers and a 4way handshake but you get the point.
@Mr.Leeroy4 жыл бұрын
average WiFi network is probably more susceptible to bruteforce attacks since people don't bother with long shared keys with enough entropy. Not sure about preventative mechanisms in common standards, though.
@Mr0neShotAway4 жыл бұрын
Great video, thank you :)
@AndreasSpiess4 жыл бұрын
Glad you liked it!
@nbsneakersbln4 жыл бұрын
There has to be this intuitive bond. I am currently working on a project in which I measure the UV-A and UV-B radiation, and if the brightness is exceeded, the shutters on the windows are to be automatically shut down until the UV-A and UV-B levels are again a comfortable level in the room reached. 🤗😘 In my Project I desire to use GY-6075 Light Sensor Modul and BMP280 for Weather Control with a Node MCU ESP32 Dev Board and a 433 MHz RF Transmitter to control the Somfy Window automation.
@AndreasSpiess4 жыл бұрын
Thanks for sharing your experience. I try to add aslo a UV sensor to my Lux sensor to compare the readings...
@aminzayani65563 жыл бұрын
Thank you very much for this video! I found it very useful :)
@AndreasSpiess3 жыл бұрын
Glad to hear that!
@mahudson35474 жыл бұрын
Your awning is to stop it getting too hot. Think infra red. A heat sink with a temp sensor might be easier and more effective! Depends if you want an engineers or a geeks solution!! Your sensor comparisons are really useful. Stay well.
@AndreasSpiess4 жыл бұрын
My wife wants to ahve teh awning out before it get hot ;-)
@marcelachternaam92494 жыл бұрын
Andreas Spiess Let me know what your solution will be. Same problem here😃
@bryanst.martin71344 жыл бұрын
The TCS3200 may have use in non digital applications. Life is about change, and, that everything repeats itself. I know, that's odd, but if the digital age ended, (EMP?) you could essentially hook one up to an antiquated panel meter via transistor and smoothing filters.
@AndreasSpiess4 жыл бұрын
I am not so sure if it is less prone to EMP. Still some silicone on it ;-)
@siliconrobot65224 жыл бұрын
I really like and appreciate your videos. I am currently using TSL2561 sensor witch includes visibible + near infrared diode and another wide range infrared diode, which is very interresting because it lets me calculate the Lux by subtracting IR reading from Visible+IR. This help me measuring light illuminance in Lux with high precision by eliminating IR interference. This sensor also gives me the possibility to measure light power with good precision by using light+near infrared diode and wide range infrared diode and using a factor calculated for most common sun light spectre profil. The problem I have with this sensor is that the range is quite low and didn't exceed 40000 Lux which is not enough for day sun light especially here in Morocco. I didn't find this information in your video when you talked about TSL2561. Could you please give me your opinion about this issue and if there is a good alternative to this sensor for my application: Weather and fertilisation station for Agricuture. For more details here bellow a link to my collected data. Thanks a lot for your high level and extraordinary video content: www.abrobotics.be/siliconceptsarl/METEO/meteoframe.php
@AndreasSpiess4 жыл бұрын
I just started using the sensor in full sun (and our sun is much less than yours). I also ordered ND filters for protection, but also to adapt the maximum Lux level to the capabilities of the sensor.
@siliconrobot65224 жыл бұрын
@@AndreasSpiess Ok, I didn't understand ND but I'll wait for you tests. I tried the same method by using small grey plastic part protection and it gives good results for illuminance in day light and also IR is not strongly influenced. The problem I have to solve now is to determine the factor to use for recalibrating Lux+near IR and IR sensor. If you see the charts you'll notice that IR reading is not always proportional to Lux especially when it is cloudy which indicates that IR is still measuring with good precision even with my DIY filter. Here is the link: www.abrobotics.be/siliconceptsarl/METEO/meteoframe.php
@lottery2484 жыл бұрын
congrats on 200k
@AndreasSpiess4 жыл бұрын
Thank you!
@raymondtwm4 жыл бұрын
Thanks! This video useful for me.I wonder how to create a strobe lux meter
@AndreasSpiess4 жыл бұрын
I assume you need a sample and hold circuit used in ADCs to hold the maximum voltage of a sensor.
@raymondtwm4 жыл бұрын
@@AndreasSpiess Thx
@zakarikous14 жыл бұрын
Hello sir, thank you very much for this video, I need advice from you, I need to build a sonometer with decibel and i need a sensor that can give me analog values of sound, can you recommend me a sensors ?? thanks
@AndreasSpiess4 жыл бұрын
I do not know, but a quick goolge search showed that microphones or piezo elements are used for this purpose.
@jwracingteam4 жыл бұрын
which would be best sensitivity to detect light in bedroom when sleeping from curtain leakage?
@jwracingteam4 жыл бұрын
ive gone for the Adafruit TSL2591 High Dynamic Range Digital Light Sensor as the Lux range is from 0.000118 to 88,000
@notofinterest4 жыл бұрын
Ich habe seit mehr als 800 Tagen einen Lichtsensor im Einsatz, der minütlich die Helligkeit misst. Damit kann man eine Steuerung für die Markise bauen. Zu bedenken ist das im Winter die Helligkeit bei voller Sonneneinstrahlung genau so hoch ist wie im Sommer bei starkem Regen. Die Schaltschwelle müsste dazu also dynamisch sein. Bei Bedarf kann ich dir meine 2,5 Jahre Messdaten gerne zukommen lassen.
@AndreasSpiess4 жыл бұрын
Sehr Interessant. Weil du soviel Erfahrung hast würde ich dir gerne drei Fragen stellen: 1. Welchen Sensor verwendest du? 2. Wie ist er gegen Wetter geschützt (durchsichtig) 3. Wie hoch ist die höchste Luxzahl die du je gemessen hast? Das würde mir die Dimensionierung erleichtern. Da ich die Regelung via Node-Red plane kann ich vielleicht das Datum oder die Temperatur meiner Wetterstation in die Berechnung einfügen.
@notofinterest4 жыл бұрын
@@AndreasSpiess Hallo Andreas. 1. Ich verwende einen BH1750 der mit einem ESP8266 verbunden ist welcher minütlich seinen Messwert über WLAN an meinen Server schickt. 2. Er ist unter einer Plexikuppel wasserdicht verbaut und verklebt. Die Plexikuppel stammt von einer alten Wetterstation, dort war damals die Solarzelle untergebracht. Der ESP is getrennt (Indoor) verbaut. 3. Maximalwert ist 54612, der reale Wert würde das doppelte überschreiten kann aber nicht mehr gemessen werden. Da dein geplanter Einsatzzweck eine Markisensteuerung ist würde ich den Wert bei etwa 1500Lux ansetzen wenns zum Beschatten dienen soll. Alles was drunter ist freust du dich eh wennst noch bischen Wärme und Sonne haben kannst :-) Falls ich ein Foto davon finde schicke ich es dir per Mail, meine Messdaten lege ich bei. Liebe Grüße!
@AndreasSpiess4 жыл бұрын
Diesen Kommentar hatte ich gar noch nicht gesehen. Also nicht vergessen. Glück gehabt. KZfaq macht es schwer, längere Konversationen in den Kommentaren zu führen. Insbesondere wenn man viele kriegt.
@engr.arslanhashmi27334 жыл бұрын
Awesome video keep it up .
@AndreasSpiess4 жыл бұрын
Thanks, will do!
@madhukeshnp4 жыл бұрын
Next on MOTION SENSORS... which can be used in day to day life.
@AndreasSpiess4 жыл бұрын
Maybe...
@DuongST4 жыл бұрын
Thanks !
@AndreasSpiess4 жыл бұрын
Welcome!
@robelm41464 жыл бұрын
Hi Andreas could you please do a tutorial of a NBE-IOT hardware combined with a simple sensor????
@AndreasSpiess4 жыл бұрын
Unfortunately we still have no NB-IOT in Switzerland.
@TheHellis4 жыл бұрын
I followed your advice on 11:14 . First I subscribed, then I unsubscribed again at 11:17. Good advice!
@AndreasSpiess4 жыл бұрын
I do not understand, unfortunately :-(
@milkfridge4 жыл бұрын
Hi Andreas, great content as usual and very helpful for a project I have always wanted to try: I would like to read the outside color temperature using one of my arduinos, then integrate it via mqtt into my node-red to adapt the Philips Hue Lights in a room with a tiny window to the same color temperature (doing this manually gives a much better perceived light atmosphere, but with changing lights outside (cloudy->sunny->cloudy) this is also irritating). Maybe some expert here has an idea: would it be sufficient to convert RGB values to Kelvin for that matter or would I need other values to analyze light intensity? Congratulatitons on 200k! :)
@AndreasSpiess4 жыл бұрын
Interesting project. Color management is not an easy thing because always the whole spectrum is important.. Hopefully you find an expert for that matter
@kanapkazpasztetem4 жыл бұрын
The uni-t lux sensor has a white plastic lens, I wonder if it does affect readings in any significant way? Since if we were "to deploy" a device with a light sensor it should be covered with something to protect it imho. Btw. I'm running like 2 years now a LDR to do stuff on sunset/sunrise and after fine tuning of sensitivity levels in software it works fine. The program also checks the time so the trigger runs only these 2 times a day.
@AndreasSpiess4 жыл бұрын
I assume they took the color of the plastic into account when they built the device. So far I do not yet know how to protect the sensors. I tend to use glas, but currently all shops are loched down :-(
@openscoreboard44154 ай бұрын
I found your video interesting. Could you advise me on this... At my job, we cut steel shavings that we stack on top of each other. I would like to build a device that, using a CCD sensor or camera, can vertically scan the stack of pieces and count how many are in the stack. What sensor would you recommend? Thank you.
@AndreasSpiess4 ай бұрын
The camera is not important and has to be selected by the program and HW you use. Most people would recommend to use a kind of "AI" for such a purpose. Maybe you find a similar project using google.
@redstone516 ай бұрын
EXCELLENT POST!!!🙏👌
@AndreasSpiess6 ай бұрын
Thank you!
@ivanbeck74 жыл бұрын
The Veml6070 was missing, it’s a great UV sensor
@arnauddurand1274 жыл бұрын
And the VEML7700 which is a great Lux sensor!
@AndreasSpiess4 жыл бұрын
Thank you for the tips!
@RFC35144 жыл бұрын
2:19 - It doesn't have to be specifically R, G and B. You could also measure at Cyan, Magenta and Yellow. Or any other mutually complementary hues. Basically, any three hues that are at 120º from each other on a colour wheel can be used to determine the dominant wavelength. But, as you know, reading just the wavelength won't allow you to distinguish (for example) red from salmon pink, or yellow from brown, since those differ in brightness and saturation as well. You can calculate those in software if the sensor outputs the three channels (not just its own internal calculation of the wavelength) but, as you mention later in the video, many of those sensors have very irregular overlap between the channels.
@AndreasSpiess4 жыл бұрын
You are right. When I was young I worked for a company called Gretag where we developed color meters for the printing industry. But these facts are too complicated for such a short video ;-)
@RFC35144 жыл бұрын
Gretag-Macbeth, later merged into X-Rite? I think I used a couple of their calibrators some 15 or 20 years ago.
@AndreasSpiess4 жыл бұрын
Yes. Even before Macbeth...
@RFC35144 жыл бұрын
Isn't Macbeth from the 17th century? ;-) Actually, I vaguely remember seeing something made by Gretag before the -Macbeth. It wasn't related to printing, though. Maybe light meters or something related with photography? My father used to be a cinematographer (retired now).