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A laser pointer at 2B FPS [video]

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615 points thunderbong | 1 comments | 19 Oct 25 06:42 UTC | HN request time: 0.273s | source
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Neywiny ◴[20 Oct 25 01:49 UTC] No.45639559[source]▶
I thought his method of multiplexing the single channel was very smart. I guess it's more common on 2 channel or high end 4 channel scopes to have a dedicated trigger input, which I've checked this one doesn't have. That said, there're digital inputs that could've been used. Presumably from whatever was controlling the laser.
replies(1): >>45651360 #
estimator7292 ◴[21 Oct 25 01:06 UTC] No.45651360[source]▶
Frankly it's uncommon to not have a trigger input. I'm not sure I've ever seen a DSO in person without a trigger in.
replies(2): >>45651844 #>>45654472 #
1. Neywiny ◴[21 Oct 25 11:06 UTC] No.45654472[source]▶
I guess I'm used to it. My main scope is an SDS1204 which doesn't have one (and when I inherited it the digital channels were reportedly blown up) despite being fairly capable for its combination of age and price