Schmitt Trigger: Robust Comparator Design with Hysteresis

11 points by ankitg123 days ago

2 comments

wrigby1 hour ago
It's worth point out that on many microcontrollers (STM32's at least), configuring a pin as a "digital input" means that the signal is routed through a Schmitt trigger circuit that's built into the MCU.<p>This also means you'll want to ensure that any floating MCU pins are _not_ configured as digital inputs, as the Schmitt trigger circuit itself will waste power switching back and forth between high and low states constantly.
aappleby1 hour ago
Slop
- blagie58 minutes ago
  I don't think it's slop -- the sources are books and it doesn't read like slop -- but the sources are more worth reading. It's more like an undergrad trying to fill word count, without getting why this is interesting.
  - skippyfish24 minutes ago
    It's 100% AI-generated, including nonsense illustrations. And it's just so pointless too - there are many good, better-illustrated, and better-explained human articles about the same circuit.
    - userbinator4 minutes ago
      The "not gate inverter" is particularly nonsensical.
  - jacquesm17 minutes ago
    This is without a doubt slop.<p><a href="https://news.ycombinator.com/user?id=jay_wevolver">https://news.ycombinator.com/user?id=jay_wevolver</a><p>Is the account that used to heavily push this domain, I'm surprised it hasn't made it to the banlist.