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Hmmm, first Idea which needs a full-time connection with some 868MHz Radiotransmitters I have.
The transmitters checks for the IR receiver State in an endless while loop and gives the value of the Input (i1) every time the code runs through an iteration to the TX of the radio-module. Is there no flash it will have "False" as state transmitted and as long as there is a flash there will be "True" transmitted.
The receiver than gets true or false in each iteration and sends that state with an IR-LED to the AWL Slave.

.....it may work but eats a lot of energy. As I want to run that one on two or three AA batteries it might be ok. The radios are 30mA (Max), the MCU is about 5mA (Max) and the IR receiver and Diode will be 20mA I think. So let's say 55mA and give it a bad times bonus of about 10 Percent and we are at about 60mA.
With some eneloops (2100mAh) that would be about 35h Operation. Enough for a shooting I think.

Description
Hmmm, first Idea which needs a full-time connection with some 868MHz Radiotransmitters I have.
The transmitters checks for the IR receiver State in an endless while loop and gives the value of the Input (i1) every time the code runs through an iteration to the TX of the radio-module. Is there no flash it will have "False" as state transmitted and as long as there is a flash there will be "True" transmitted.
The receiver than gets true or false in each iteration and sends that state with an IR-LED to the AWL Slave.

.....it may work but eats a lot of energy. As I want to run that one on two or three AA batteries it might be ok. The radios are 30mA (Max), the MCU is about 5mA (Max) and the IR receiver and Diode will be 20mA I think. So let's say 55mA and give it a bad times bonus of about 10 Percent and we are at about 60mA.
With some eneloops (2100mAh) that would be about 35h Operation. Enough for a shooting I think.