Search found 5 matches
- Wed Jan 06, 2021 11:38 pm
- Forum: Hardware
- Topic: Four plus channels of audio recording with I2S
- Replies: 20
- Views: 27384
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, ...
- Wed Jan 06, 2021 3:11 pm
- Forum: ESP-IDF
- Topic: Inputting audio to an ESP32 from an INMP441 I2S microphone: success
- Replies: 13
- Views: 74349
Re: Inputting audio to an ESP32 from an INMP441 I2S microphone: success
Thanks, most helpful!
- Wed Dec 09, 2020 2:30 pm
- Forum: Hardware
- Topic: Shielding against inductive interference
- Replies: 3
- Views: 4712
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...
- Wed Dec 09, 2020 5:09 am
- Forum: Hardware
- Topic: Shielding against inductive interference
- Replies: 3
- Views: 4712
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...
- Thu Sep 10, 2020 10:19 pm
- Forum: Hardware
- Topic: Switching a 9v load
- Replies: 2
- Views: 3368
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.