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ESP8266 Internet Alarm
Universal Portable USB Charger
Mini Arduino Lux Meter
How to build a laser (general guide)
Thanks a lot for answering!
Yes, it should work straight away on Arduino UNO and also on a Nano or Mega.
Very nice project, thanks. I build it and it works fine. I wonder, should it work on a Arduino Uno without changes??
Hi, thanks for your reply, I see. Well like I'm said, I made a version of your meter with some extras like battery indicator, hold and save/export data, sadly I haven't a nokia display so I've to pretty much write all the code, but if you or anyone are interested on my version or to adapt the extras to your version are welcome, I put the code, the diagram and a mini-wiki on a shared folder on gDrive: goo .gl/4NhtGC I'm trying to add photography related functionality, like f/iso/ev functions, but it's work on progress so when I'm finish I'll posted here and on github. Again, thanks for sharing!.
The sensor outputs 0..65535lx raw value, but to get the actual light level, you need to divide it by 1.2. So when fully lit, 65535/1.2 = 54612 lux. The BH1750 library does this automatically.
Hi, thanks for sharing this project, I'm building it a bit ugly but with some extras, but I have an issue, on a sunny day I get only 54612 lux as max, it should be about 65535 isn't?
Hi,The BC547 is a NPN transitor, not PNP as listed. Nice project though!Cheers,Scott
Cool laser tricks!
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