The SDO112A fed the M5 with quite a clean signal and got something very noisy on the Oscillo @Calin made.
Is the AD input of the esp32 noisier than an stm32 or the old arduino, is this the amp that M5 hardware added?

]]>https://community.m5stack.com/topic/156/ad-noisy-noRSS for NodeWed, 29 Apr 2026 05:21:55 GMTWed, 04 Apr 2018 04:48:10 GMT60After disconnecting the M5 from the computer and grounding the source, the sampled signal is very clean.

]]>https://community.m5stack.com/post/727https://community.m5stack.com/post/727Thu, 05 Apr 2018 21:08:59 GMT