New comment by pfj1 in "Replacing the old battery on rechargeable bike lights"

pfj1 — Sun, 27 Sep 2026 20:02:29 +0000

Depends which one you buy! I bought a SON about 10 years ago, have done around 20k miles in all weathers, and have had zero issues at all with it.

New comment by pfj1 in "AI learns the “dark art” of RFIC design"

pfj1 — Sun, 28 Jun 2026 10:18:14 +0000

Those "evolved" FPGAs weren't much of a mystery. They just used undefined parameters (inductive coupling, power supply rail glitching, etc) to achieved the trained outputs. They didn't work when the ambient temperature changed, or when moved to another example of the same FPGA.

Hacker News: pfj1

New comment by pfj1 in "Replacing the old battery on rechargeable bike lights"

New comment by pfj1 in "AI learns the “dark art” of RFIC design"