Post B5osS4dCUS89IzbYmm by niconiconi@mk.absturztau.be
 (DIR) More posts by niconiconi@mk.absturztau.be
 (DIR) Post #B5oqHkrmv7RnCaNcJ6 by niconiconi@mk.absturztau.be
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       MCU debugging hack: want to probe a clean rising edge of a GPIO pin but your PCB doesn't have a GND test point nearby? Set a nearby GPIO pin to OUTPUT LOW. #electronics
       
 (DIR) Post #B5oruBcA1JvB7LxYyO by whitequark@social.treehouse.systems
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       @niconiconi this can also be used to reduce noise sometimes! like a virtual ground
       
 (DIR) Post #B5osS4dCUS89IzbYmm by niconiconi@mk.absturztau.be
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       @whitequark@social.treehouse.systems A pair of pull-up, pull-down GPIOs also allows you measure die-level voltage droop and ground bounce for PCB layout debugging.
       
 (DIR) Post #B5pEkdKER2gf6wzHV2 by natanbc@mastodon.social
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       @niconiconi "we have decoupling at home"