trame ppm

[lecougar]

hello everyone, here is my problem
i do not know how to invert a signal.
actually, i have this signal which starts by a rising edge

signal that i have

and instead i want this one which starts by a falling edge

signal that i wanna have

i don't know if it is possible to change the first one in order to get the other
thank you in advance.

[LubinKerhuel]

Want to do this with analogic electronics ?
What about using a transistor ? (you will not get 0V however byt 0.2 I guess)

[Ender]

Hummm; interesting...
I propose the classic 'put the screen upside down'

[resodad]

lecougar, use a 74LS04 inverter: http://www.datasheetcatalog.org/datashe ... 54LS04.pdf
John