Hi guys,
i'm pretty new on this discussion board and i'm not sure if my question is in the good section. i'm a hobbyist, so trying to keep things simple and cheap.
i would like to use Arduino to sample (eavesdrop) on a hotshoe communication cable of a flash cable (camera to flash) so that i can intercept the the data packets used in the communication protocol.
by just tapping into the cables via a breadboard and sampling the line voltage state via
i notice that the camera does not recognize the flash attached, and the flash does not recognize the flash trigger signal that is being sent.
therefor. are there electronic schema's that allow the sampling of the line state without interfering on the cable
(e.g. pulling the line low or high)
one thing to note here is, the communication is bi-directional, so an opto-isolater would not work.
thx in advance for pointing me into a good direction!
H.
i'm pretty new on this discussion board and i'm not sure if my question is in the good section. i'm a hobbyist, so trying to keep things simple and cheap.
i would like to use Arduino to sample (eavesdrop) on a hotshoe communication cable of a flash cable (camera to flash) so that i can intercept the the data packets used in the communication protocol.
by just tapping into the cables via a breadboard and sampling the line voltage state via
Code:
pinMode(PIN_IN_HOTSHOE_CLOCK, INPUT);
therefor. are there electronic schema's that allow the sampling of the line state without interfering on the cable
(e.g. pulling the line low or high)
one thing to note here is, the communication is bi-directional, so an opto-isolater would not work.
thx in advance for pointing me into a good direction!
H.