Comments on: ESP8266 NodeMCU with BH1750 Ambient Light Sensor

By: Pedro

Pedro — Tue, 21 Nov 2023 14:50:05 +0000

Hello Sara

May be I’m wrong, but it seems sketch first read illuminance level, and THEN adapts parameters FOR NEXT READING, this means that if you make periodic measurements, let´s say every 5 minutes, next measurement will be affected by “old” parameters, not the current reality right?

Better to take several measurements during a quite long period and establish an average value to discard strange results…

Regards

By: Sara Santos

Sara Santos — Tue, 17 Oct 2023 15:49:32 +0000

In reply to Rain Acam.

Hi.
Can you provide more details?
Regards,
Sara

By: Rain Acam

Rain Acam — Tue, 17 Oct 2023 06:33:55 +0000

It says “device is not configured” what should I do?

By: Francois Moutou

Francois Moutou — Wed, 07 Dec 2022 21:29:24 +0000

Thanks for the tuto. Do you know what the max lux value is?

By: James Cotter

James Cotter — Sun, 13 Mar 2022 21:03:16 +0000

Thanks for the help, that should work

By: Fred

Fred — Sun, 13 Mar 2022 17:35:29 +0000

In reply to James Cotter.

Hi !
I think you just have to make a test on var lux :
float level = 100; // level is fixed at 100 lx
if ( lux < level )
{digitalWrite(pin, HIGH);}
else
{digitalWrite(pin, LOW);}
Fred

By: James Cotter

James Cotter — Thu, 10 Mar 2022 12:24:05 +0000

I would like to see an application where in the the sensor could turn a pin high when there
was very little light and turn a pin low when there was light detected.