multi-sensor network

Using Arduino Sensors
1

hii

i have a project that consists on connecting 20 same type sensors with arduino mega but i'm confused and i don't know which sensor to use

the criteria are: rgb + light intensity sensig ,that i can use in multi-sensor network (i2c,uart,spi...) with a different independent adress for each sensor

thank you

2

What distance between the sensors? What range are the light levels in? How fast does the sensor have to be?

Maybe you tell us what your project is about, there may be specialized sensors for your field.

3

i'm trying to meassure the rgb and intensity of exsiting LEDS

4

pylon:
What distance between the sensors? What range are the light levels in? How fast does the sensor have to be?

Maybe you tell us what your project is about, there may be specialized sensors for your field.

i'm trying to meassure the rgb and intensity of exsiting LEDS

5

Please answer the other three questions.

6

pylon:
Please answer the other three questions.

the sensors must be close because i'm going to read the light and the rgb of leds in a pcb

pylon:
What range are the light levels in?

the intensity of light is measured in lux

and theere is no problem about the speed of the sensor , just it must be that all the sensors work Simultaneously

7

just it must be that all the sensors work Simultaneously

It's not possible to read them simultaneously, at least not for reasonable costs. Define the time frame that is acceptable for you.

If it has to be very fast, a camera is probably the easiest and most convenient way.