@ryanc
Not a sensor, not an oscillator, it doesn't resonate but it uses a 555.
A trigger of some sort?
That resistor probably /somhow goes to the trigger input of the 555?
Overly complicated debouncer and level shifter?
Soft start for some DC thingy?
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Hawkuletz (hawkuletz@mastodon.sdf.org)'s status on Thursday, 18-Jun-2026 07:54:36 JST
Hawkuletz