BH1750 lux sensor: reading 54612 lux???

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Re: BH1750 lux sensor: reading 54612 lux???

Post by ThinkPad » Wednesday 28 October 2015 22:34

0 lux.

For today it was like this, see attachment.
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Re: BH1750 lux sensor: reading 54612 lux???

Post by thecosmicgate » Thursday 29 October 2015 10:43

Dubbel post
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Last edited by thecosmicgate on Thursday 29 October 2015 10:50, edited 2 times in total.
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Re: BH1750 lux sensor: reading 54612 lux???

Post by ThinkPad » Thursday 29 October 2015 10:53

I deleted two of your messages, it looked like something went wrong :lol:
But like i said, just exchange the BH1750 for a different one, that will probably fix it.
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Re: BH1750 lux sensor: reading 54612 lux???

Post by thecosmicgate » Thursday 29 October 2015 11:36

ThinkPad wrote:I deleted two of your messages, it looked like something went wrong Image
But like i said, just exchange the BH1750 for a different one, that will probably fix it.
Already changed the BH1750 to one other , but still this low lux measurement's

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Re: BH1750 lux sensor: reading 54612 lux???

Post by ThinkPad » Thursday 29 October 2015 16:19

Then i would say: check the wiring (connected to analog pin instead of digital pin by accident)? Or maybe the sketch has changed and some calculation is different... Try with a BH1750 example sketch to see what readings you get.

It should definately read more than 72 lux, my Aeon multisensor tops out at 1k lux at day, it sits in my livingroom with no direct sunlight at it.
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Re: BH1750 lux sensor: reading 54612 lux???

Post by thecosmicgate » Thursday 29 October 2015 19:52

ThinkPad wrote:Then i would say: check the wiring (connected to analog pin instead of digital pin by accident)? Or maybe the sketch has changed and some calculation is different... Try with a BH1750 example sketch to see what readings you get.

It should definately read more than 72 lux, my Aeon multisensor tops out at 1k lux at day, it sits in my livingroom with no direct sunlight at it.
I used this example sketch :) is there one other ? Maybe try that one .
I already checked the wiring 10times and already changed this to eliminate that.
I soldered the wires direct on the arduino instead of using the breadboard debont wires

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Re: BH1750 lux sensor: reading 54612 lux???

Post by ThinkPad » Thursday 29 October 2015 19:53

I don't know either then...
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Re: BH1750 lux sensor: reading 54612 lux???

Post by thecosmicgate » Saturday 31 October 2015 21:28

ThinkPad wrote:I don't know either then...
I think i solved the problem lux measurement's are higher then >1000 today

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Re: BH1750 lux sensor: reading 54612 lux???

Post by D'rMorris » Sunday 29 November 2015 16:37

thecosmicgate wrote:
ThinkPad wrote:I don't know either then...
I think i solved the problem lux measurement's are higher then >1000 today

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How did you solve the problem? I have the same issue as you, currently reading 19lux :(.
Any help is highly appreciated :).

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Re: BH1750 lux sensor: reading 54612 lux???

Post by thecosmicgate » Sunday 29 November 2015 16:56

D'rMorris wrote:
thecosmicgate wrote:
ThinkPad wrote:I don't know either then...
I think i solved the problem lux measurement's are higher then >1000 today

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How did you solve the problem? I have the same issue as you, currently reading 19lux :(.
Any help is highly appreciated :).
Changed the sensor , and put it directly on the window.
If you measure today the weather is that bad that the lux is very low (maybe that's all:-) )
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Re: BH1750 lux sensor: reading 54612 lux???

Post by D'rMorris » Sunday 29 November 2015 22:13

Didn't put it on the window indeed, just inside with lights on. Still, I think that 19 lux is too low. What were your readings today?


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Re: BH1750 lux sensor: reading 54612 lux???

Post by ThinkPad » Sunday 29 November 2015 22:43

Mine was around 800 during mid-day, and around 200 lux when it started to get a bit dark (~16:30).

Sensor is working really good in my situation. Faced south, behind matte window foil.
I wish i could help, but i already mentioned the things you could try (check pinout, change sensor etc).
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Re: BH1750 lux sensor: reading 54612 lux???

Post by sincze » Sunday 14 January 2018 21:34

Unfortunately today I had the same issue.

However before re-flashing the sensor was working perfectly.
With that in mind I tried several different BH1750 libraries that I could find on the web and finally found one that worked.
So instead of the sensor being broken.. an 'incompatible' library can also cause problems.

From now on I keep the library with the sketch. :D :lol:
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Re: BH1750 lux sensor: reading 54612 lux???

Post by Mandet376 » Thursday 05 April 2018 8:19

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