Here’s a quick and easy Trigger I made using a 555 timer and a IR Demodulator.
It’s a 555 setup as a monostable, single pulse generator. The pulse beings when pin 2 sees a low signal from the IR demodulator. The demodulator goes low whenever it is in range of a 38Khz remote while a button on the remote is being pressed. The pulse is = 1.1 x R x C (1.1 second = 10,000k x .0001F x 1.1) Super Simple. Enjoy!