Light sensor for slow applications

Very nice...👍

LeButch, you have made your first friendship with the troll community here on everycircuit and you promised them to not speak with me and I do not want to destroy this new feelings for you which you seems to have the first time in your live. However, it looks like you haven't tested this circuit and just simulated. You and fancynacy should know such LED gives you just a little less then 100nA which is just 1V voltage drop at 10MOhm. So it looks like you underestimated the pullup resistance which must be >50MOhm. Just look at the circuit were I amplified the current of a LED stage by stage and just endup at around 10mA for an indicating LED. 10mA/550 and /350 is around 52nA nothing more you get out of a LED. Fancyfuckface will help you to understand my circuit. Check it out in detail and you will learn how it works.

First, we just dont react to your troll comments anymore. Secondly, I have build this thing and it works. It is really insensitive - you need to shine with a flashlight from like 50cm on the top of the LED to make it detect it, but it totally works. I do not have UV LEDs here which would be best for sunlight detection, but if you want to detect specific wafelength, you should choose a LED with the same wafelength as a detector.

UV Led would be the lowest.sensitivity. What you probably mean are infrared leds. Your red LED is pakaged in red plastic or is the plastic clear? I have test in sunlight and direct flashlight from mobile phone distance a few millimeter and I can pull 10MOhm 4V not more! So it wont work doesn't matter which mosfet used.

Here a picture of what I did, maybe you have also taken some pictures and let us know which mosfet you have used. But as long the input circuit for the mos is not working we are not in hurry http://imgur.com/7Ma6AHg

And the circuit how I have tested, this is much more then you provided http://everycircuit.com/circuit/5119006909661184

It does work, but you are right. It is really insensitive. This is one of its traits. But it works really reliable.

I had more questions, which mosfet are you using? UV vs IR is that clear for you? Any pictures? Colored plastic or clear plastic LED?

I use the 2N60, IR LED with clear plastic, no pictures.

Its more and more clear you are cheating and its not tested. So better we stop talking about your trolling here and leave you allown, cuz you tried that already in the past to publish fake circuit. Go and tune this bullshit, especial if it comes to the mosfet you have used and the LED without any pre resistor. This works here within everycircuit with the default mosfet but in real it does blow your LED. And a LED as fotoresistor is more a 50MOhm resistor if light shines on the LED. Its definitive not a 1MOhm like you have here in your circuit! Go and cheat others but not the everycircuit community. fraud! And dont cry like a baby cause we dont talk to you anymore.

I used 3 blue LEDs in series. The last time I "lied" like you express it was when my power source was too bad for the experiment, but this time there cant be any faults. I will post pictures of it when I rebuilt it. I took it down to reuse my breadboard.