Hi, Based on what I have read on the forum when an ESP32 device works in an AP+STA mode, the AP mode's channel switches to the channel on which the STA mode is connected with the router. Please correct me if I am wrong. If the AP mode transmits on the same channel as the router, how likely is it tha...

So even after the fix it took 4 boots for the flash to be readable? Did you test for any shorts to adjacent pins via whiskers? No, the result was immediate. Sorry for the confusion, just meant to show the transition. What you are seeing in the putty screenshot is the log before and after the fix. I...

Hi, We have manufactured over 2000 pieces of a PCB containing the ESP32-WROOM-32 module. We have been receiving reports of failures in the field where the status LED on the boards are stuck in the state where the board attempts to boot. Under normal booting conditions, this LED state is quickly surp...

It is clear to check the boot mode message if GPIO12 is pulled high during power-up. https://github.com/espressif/esptool/wiki/ESP32-Boot-Mode-Selection#boot-mode-message The issue does not happen on power-up and the device performs as expected. So, the boot messages provided in the link you shared...

I have an LED connected to GPIO12 as follows: 3.3V-----I>I-----/\/\/------GPIO12 Vf of the LED is 2.1 and the resistor is 1k ohm. Could this be a reason for flash corruption? Considering a weak internal pull-down resistor (assuming 50k ohm) on the pin, the voltage could be in the undefined zone of C...

This is a note of caution for people considering using the ESP32-WROOM-32E instead of the ESP32-WROOM-32D. Please note that, unlike the ESP32-WROOM-32D module, the pins GPIO6 to GPIO11 of the V3 chip are not led out to the pins of the ESP32-WROOM-32E module. The impact is that one cannot connect an ...

Since the menuconfig contains a section to define the CS and CLK pins used for the PSRAM, I was assuming that the pin configuration is taken care of at the time of compilation. If that is not the case, can I activate the internal pull-up instead of an external pull-up resistor? Regarding the flash c...

Hi, I have designed a PCB with ESP32-WROOM-32D module and ESP-PSRAM64H PSRAM following the schematic of the ESP32-WROVER module. I observed some failures on certain devices in the field where a certain partition on the flash which I was occasionally writing to gets corrupted. This prompted me to hav...

Just an update for those who stumble upon this thread. I recently tried to use JTag programming using OpenOCD (through VisualGDB in Visual Studio) and this worked flawless. It also allowed me to debug and set breakpoints in the code - win! 8-) Did you get it working by following the instructions pr...

Hi, I am curious to know if there exists any difference between toggling the Enable (EN) signal on the ESP32 WROOM module and cycling the power to the module. Are there any faults which are cleared only by cycling the power? This post on Github is the source of my confusion. An excerpt from the post...