[Feature Request] Can M5Stack UNIT-LIGHT U021 be used as a trigger?

[shsmad]

Hi, can M5Stack UNIT-LIGHT U021 connected to GPIO port of stick be used as a trigger? I'm searching a way to do photography of lightnings.

[frank26080115]

No current support

It would be much cheaper to just build that circuit yourself and use the existing analog trigger mode

Also, for lightning, the latency needs to be incredibly low, I don't think Alpha Fairy is suitable for it. I did think about this already a long time ago.

All you need is https://www.amazon.com/Detection-Optical-Sensitive-Resistance-Photosensitive/dp/B07XFZ99XL/ref=sr_1_3 , a power source, one diode (to protect your camera), and a way to connect to your camera's intervalometer port, it would work so much better.

[shsmad]

@frank26080115 thanks for an answer. I found better sensor for lightnings: as3935 lightning sensor. I've been thinking about building a small addon, probably using arduino nano, to connect it to Fairy in external trigger mode.

As far as wired connection concerned, my sony a7c have only usb type-c port, which can't be used as trigger/intervalometer port (like S2 port on other sony cameras), so the only way to remote control it — using wireless triggers (like aodelan rmt-p1bta or jjc btr-s1 bluetooth triggers or Alpha Fairy with wi-fi).