turn light on by another light

Projects Programming
1

hey Arduino community

Frist off all thanks for lending me code when I need it,

My new project is a little more complex then I got the skills for, so can community can you help me out??
The end goal is to turn on a light by another light.
So when going into a room a toggle a light switch from off -> on -> off -> on -> off -> on within 2-3 seconds it pulls a relay high and another light comes on, 15 minutes later the relay goes low and system returns to start.

2

The toggle switch and lights your refering to, are they using mains AC power or something else?
If they are mains then how are you detecting the light on/off toggle?

3

A Light Dependent Resistor (LDR) is a convenient device for detecting light.

...R

4

yes, the first light is from the mains AC a normal light fixture on the wall,

and then using a photoresistor as an input, an Arduino nano to run the code, and a relay(srd-05vdc-sl-c) to turn the new light on and off

5

menace_dk:
and then using a photoresistor as an input, an Arduino nano to run the code, and a relay(srd-05vdc-sl-c) to turn the new light on and off

So what have you tried? And with what result?

...R