PM Standard - HW Watchdog issue...

Author	Message
phil99 Guru Joined: 11/02/2018 Location: Australia Posts: 3212	Posted: 07:18am 08 Oct 2025       Re the external watchdog, if you need to save the current of 2 x NE555s (or 556) a pair of CMOS hex Schmidt inverter gates can do a similar job for less cost than the 7555 version. Tomorrow I will have time to test it on a Pico if you are interested.