I am running the WIFI/WPS Example on my ESP32C3U. While this does get me an IP address, and makes my μcontroller ping-able on my network, I would like to store the result of the WPS on the device (I am using the M5Stack STAMP-C3U μcontroller.) NOTE: I use the push-button on my router to connect. Any...

Ah, OK.
Thanks for clearing that up @ESP_Sprite. I appreciate it.

Hi @bstolk afaik GPIO6 to GPIO11 are normally used for flash. So yes, like @GregP72 already wrote, use different GPIOs for I2C. Thanks Felix I am confused... I am not supposed to use GPIO6, GPIO7, GPIO8, GPIO9, GPIO10 and GPIO11 for anything? Doesn't that severely hamper the usefulness of this boar...

The documentation on the ESP32C3 dev kit is incorrect in the pin-out diagram. https://docs.espressif.com/projects/esp-idf/en/latest/esp32c3/hw-reference/esp32c3/user-guide-devkitm-1.html# On this diagram it states that the SPI CLOCK is at GPIO6. In reality, it is on GPIO4, which can be confirmed wit...

Ah, OK.

I see that the IDE defines the symbol
SCK / MISO / MOSI as 4 / 5 / 6

Using that the Adafruit SSD1306 works fine, and can use the default SPI object.

NOTE: It would be useful to add those to the pin-out diagram of the ESP32-C3-DevKitM-1.

Does the ESP32-C3 have hardware SPI? Looking at the pinout https://docs.espressif.com/projects/esp-idf/en/latest/esp32c3/_images/esp32-c3-devkitm-1-v1-pinout.jpg I see no MISO MOSI SCLK pins. I am trying to run the Adafruit SSD1306 sample here, with HW SPI. https://github.com/adafruit/Adafruit_SSD13...

ESP_Sprite wrote: ↑

Sat Jan 15, 2022 3:43 am

You should be able to simply reflash it; does that not work?

Reflash, as in reprogram?

When I build and upload a new program, I get the same issue. I use arduino ide.

Can I reflash the bootloader, maybe? If so, how?

I think GPIO 8/9 for I2C is indeed dangerous. I tried scanning the I2C bus with a OLED attached, and I am now left with a corrupted board, that spews this in a never ending stream: ESP-ROM:esp32c3-api1-20210207 Build:Feb 7 2021 rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT) SPIWP:0xee mode:DIO, cl...

My ESP32-C was working previously, but after hooking up GPIO9/8 to try I2C, I think I somehow corrupted it? Now it is stuck in this boot loop. I tried reset, and power-cycle, to no avail: ESP-ROM:esp32c3-api1-20210207 Build:Feb 7 2021 rst:0x3 (RTC_SW_SYS_RST),boot:0xd (SPI_FAST_FLASH_BOOT) Saved PC:...

Hi,

I use the Espressif ESP32-C3-DevKitM-1 with Arduino IDE (nightly build.)

For my use, I don't need WIFI nor do I need Bluetooth.

Are the radio function enabled by default, or disabled?

If they are enabled, how can I turn them off? Is there example code on how to do that with Arduino-IDE coding?