changing order of an LED light and rewiring it

[ledl1ght]

Hi, i have an LED flash machine thing, it has 8 LED lights, it has 8 modes and each mode flashes the LEDs in a different order, i have it on the wall and it can be quite difficult to press the switch at times, i would like to change it somehow so that when i turn it on it goes straight to the "7th" mode, i have enclosed pictures, would anyone be able to assist and tell me how this is done? Thanks

 

[andre_luis]

I cannot see another way to do that than adding before this button an external circuitry that performs an one-shot counter modulo 7, what means, generate 7 pulses each time the button is pressed.

 

[ledl1ght]

thanks would this be pretty quick like instantly or a time delay? is there any other way this could be done?

 

[andre_luis]

Should get more details about the circuit and its firmware to know the debouncing time required, but I presume somewhat on the order of 50 milliseconds could suffice for each pulse.

 

[ledl1ght]

when you say 50 milliseconds per pulse do you mean 50 milliseconds per mode i.e. to get to 7 it would be 350 milliseconds?

 

[andre_luis]

The 50ms I suggested refers to the interval starting of each pulse, so that you could for instance define 25ms on high level and 25ms on low level. Anyway, that´s based on supposition. Take in mind you gave any additional information concerning to the circuit.

 

[ledl1ght]

thanks, I'm somewhat of a novice regarding this what can i tell you about the circuit? can i just buy one of these?

 

[andre_luis]

In order to give you a reliable answer, need more details, as asked above. Unfortunately, the easiest way I can see to do that would be doing that by some external micorcontroller.

 

[FvM]

Or writing new code for the built-in microcontroller...

 

[ledl1ght]

so the easiest way would be to use an external micro controller? could you help me a bit in regards to that?

 

[andre_luis]

As said above, we´re still predominantly on the field of suppositions.
Give us more details about the circuit.

 

[ledl1ght]

as i said i am somewhat of a novice, i know the input voltage is 12V but apart from that....