Search found 5 matches

by anttok
Wed Jan 06, 2021 11:38 pm
Forum: Hardware
Topic: Four plus channels of audio recording with I2S
Replies: 20
Views: 27424

Re: Four plus channels of audio recording with I2S

@cblondon Could you summarize where you landed on this subject? I just want to clarify that it is possible to have two microphones share the same 3 i2c pins and one i2c interface on the esp32 just by setting their jumper to L and R modes? I'm trying to build a four mic array for sound localization, ...
by anttok
Wed Dec 09, 2020 2:30 pm
Forum: Hardware
Topic: Shielding against inductive interference
Replies: 3
Views: 4722

Re: Shielding against inductive interference

First, thank you for the quick reply. A mechanical disconnect was my first thought also. At first both components experienced simultaneous power reset, which I tracked down to mechanical switch bounce on the battery pack bms, which I shorted (for now) with a wire. The vesc is now stable (I compare t...
by anttok
Wed Dec 09, 2020 5:09 am
Forum: Hardware
Topic: Shielding against inductive interference
Replies: 3
Views: 4722

Shielding against inductive interference

Hi, I'm a relative beginner, so please bear with me. PROBLEM: I am experiencing POWERON_RESET when riding and esp powered electric skate board on street, particularly going over manhole covers and other metal utility covers. I think its very possible that some of these covers have a small current th...
by anttok
Thu Sep 10, 2020 10:19 pm
Forum: Hardware
Topic: Switching a 9v load
Replies: 2
Views: 3370

Switching a 9v load

I want to use the esp32 to in place of a physical switch on a bms. It shows a 9v and 5mA on the line. Can I use a GPIO pin pulled set low, to ground the current and activate the bms without damaging the esp32? I know i could use a load driver or ssr or nfet with some resistors as an alternative.