Search found 5 matches

by owen_chen
Mon Mar 04, 2019 7:53 am
Forum: Hardware
Topic: over heat of ESP32
Replies: 4
Views: 6683

Re: over heat of ESP32

Hi:

Sch is attached.

What we found recently is over-heat problem could be fixed by decreasing running freq of ESP32 from 240MHz to 80MHz.
by owen_chen
Fri Mar 01, 2019 7:08 am
Forum: Hardware
Topic: over heat of ESP32
Replies: 4
Views: 6683

over heat of ESP32

Hi : We made our own ESP32 Core-Board using ESP32-D0WDQ6, Core-Board connecting with another implementation board using 2.54mm pitch Pin Connector, pin connector has all ESP32 IOs. Recently we encountered few cases which cause ESP32 over heated when we do hot-plug of Core-Board(3v3 of ESP32 remains ...
by owen_chen
Thu Sep 13, 2018 9:56 am
Forum: ESP-IDF
Topic: PSAM operation with camera application
Replies: 1
Views: 3297

PSAM operation with camera application

Hi: When I use ESP32+External 8MB PSRAM(P/N=ESP-PSRAM64)+Camera(Driver IC=OV7725), failed to move camera data to external PSRAM with DMA operation when data is relatively larger, e.g. data of one VGA format picture, PSRAM operates in 80MHz clock, QPI 4-wires. Anyone has experience involving DMA oper...
by owen_chen
Fri Sep 07, 2018 2:50 am
Forum: General Discussion
Topic: ESP32 GPIO Config
Replies: 2
Views: 3684

Re: ESP32 GPIO Config

thanks!
by owen_chen
Fri Sep 07, 2018 2:39 am
Forum: General Discussion
Topic: ESP32 GPIO Config
Replies: 2
Views: 3684

ESP32 GPIO Config

Hi:

Does any GPIO of ESP32 could be configured as UART/SPI/I2C by software?