Search found 4 matches

by samyri
Tue Apr 20, 2021 9:47 am
Forum: Hardware
Topic: ESP32-WROOM-E and PSRAM
Replies: 0
Views: 1402

ESP32-WROOM-E and PSRAM

Hello Espressif, I have a project with esp32-wroom module and psram. In the previous version of this module (version D), it's was possible to add external psram. But on new version module (version E), the pin for psram is not connected. Does it exists a version of ESP32-WROOM-E with this pin connect...
by samyri
Thu Dec 03, 2020 10:03 am
Forum: Hardware
Topic: high current peak at boot
Replies: 6
Views: 9736

Re: high current peak at boot

I mean by micro power cut to stop power about( for example) 100 ms before to recover power. With this test, I want to be sure that the esp32 will always start properly after perturbation on power delivery. We need to stay on 300mA power supply because (not limited) we test it on our application with...
by samyri
Wed Dec 02, 2020 9:58 am
Forum: Hardware
Topic: high current peak at boot
Replies: 6
Views: 9736

Re: high current peak at boot

Thanks you for your reply. I note that you don't guaranteed perfect working with 300 mA power supply. I make some tests in different condition with two cores active at 240 MHz and wifi at 0 dBm: With this setting in stress test (high rate of http request) or in wifi scan mode, I never see a current ...
by samyri
Mon Nov 30, 2020 9:30 am
Forum: Hardware
Topic: high current peak at boot
Replies: 6
Views: 9736

high current peak at boot

Hi everyone, I'm working on project with esp32 and I use IDF v3.3.4. On my custom board, I have a technical limitation about 300 mA on esp32 power supply. I need to keep two cores active at 240 MHz. So to be sure to have the same working pattern between each card in production, I decide to disable "...