Looking for photodiode circuit (like the cheap ones on aliexpress)

[TheoL]

Since I've started with MySensors, it almost seems like Christmas throughout the whole year. There are just to many leds on the Arduinos and the sensors. Since a lot of these sensors use an LM393 voltage comparator it should be easy to build those sensors myself. So I ordered a couple of them on alie, but should have looked for a circuit before I ordered them

For most of the LM393 based sensors I use, I found great circuits. But I'm still looking for a circuit with a photo diode circuit using the LM393. Just like these ones:

http://www.aliexpress.com/item/J34-Free-Shipping-10pcs-lot-Photodiode-Light-Sensor-Module-3-3-5V-Input-Light-Sensor-for/32399507873.html?spm=2114.30010308.3.10.PKkCQR&ws_ab_test=searchweb201556_0,searchweb201602_4_10057_10056_10037_10055_10054_301_10059_10033_10058_10032_10017_10060_10061_10052_414_10062_10053_413_10050_10051,searchweb201603_1&btsid=e57df160-29da-4cc6-b825-232cda97ae9d

So much obliged, if someone can help me with a circuit for a sensor that has an adjustable sensitivity digital out. And a analog out. I'm still amazed by the fact that you can measure the light level with an LED. I'd never thought about that until I started looking for a circuit. I've tested different LEds, but so far it seems like the green and yellow LEDs are the most sensitive. So I might end up using them instead of an IR led. But until I found a decent circuit... ;-)

So far I've found this circuit:

But it has no adjustable sensitivity and no analog out. (But that last one should be simple, instead of going to the LM393 I should go directly to the Arduino through a resistor)