Search found 9 matches

by autodog
Wed Dec 14, 2022 4:50 am
Forum: General Discussion
Topic: If we can create a "Gatway I2C" to extend i2c protocol wireless ! ?
Replies: 4
Views: 2523

Re: If we can create a "Gatway I2C" to extend i2c protocol wireless ! ?

Very unlikely. I2C is a transactional protocol with very specific hardware timing requirements. For example, if an I2C master attempts to read from an I2C slave, it expects a response on a very specific set of SCL clock edges. It would not be practical to relay such a message wirelessly, query a rem...
by autodog
Wed Dec 14, 2022 4:32 am
Forum: General Discussion
Topic: ESP32 MAC address does not match AP MAC address
Replies: 1
Views: 1857

ESP32 MAC address does not match AP MAC address

Greetings, We are using the ESP32-WROVER-B with esp-idf v3.3.6 and have noticed an issue we can't explain: When we read the MAC address from the ESP32 WiFi interface in STA mode using the esp_wifi_get_mac() function, the value returned does not match the MAC address reported by the AP point it is co...
by autodog
Sat Dec 12, 2020 4:21 am
Forum: ESP-IDF
Topic: Failure to connect to SSID with spaces in them
Replies: 10
Views: 18716

Re: Failure to connect to SSID with spaces in them

I just want to know that how it is problem with one access point. can you please clarify for the same? To clarify, we had a specific 3rd party access point (not an ESP32) that was causing problems and preventing our ESP32 STA from connecting. The SSID on this AP had a special character that was cau...
by autodog
Wed Nov 18, 2020 4:45 am
Forum: ESP-IDF
Topic: Failure to connect to SSID with spaces in them
Replies: 10
Views: 18716

Re: Failure to connect to SSID with spaces in them

After further testing, this does not appear to be an issue with esp-idf but rather a problem with one access point.

-AD
by autodog
Sat Nov 14, 2020 10:49 pm
Forum: ESP-IDF
Topic: Failure to connect to SSID with spaces in them
Replies: 10
Views: 18716

Re: Failure to connect to SSID with spaces in them

Hello All, Apologies for the necropost here, but I'm facing a similar issue: It seems that my ESP32 devices cannot connect when the SSID contains both a space and a period (.) in the SSID: Failing SSID example: MY 2.4 GHZ Working SSID example: MY2.4GHZ Working SSID example: MY 24 GHZ This is easily ...
by autodog
Fri Jan 17, 2020 4:05 am
Forum: ESP-IDF
Topic: HTTP Authentication fails when using config with username, password entry
Replies: 8
Views: 15121

Re: HTTP Authentication fails when using config with username, password entry

Folks: I had the exact same issue as the original post. Good news: your can ignore all the workarounds in this thread - it's been fixed in esp-idf release v3.3.1: https://github.com/espressif/esp-idf/releases/tag/v3.3.1 From the HTTP Client release notes: Fixed issue where calling esp_http_client_se...
by autodog
Tue Sep 24, 2019 1:30 am
Forum: Hardware
Topic: ESP32 Flash SPI Speed Issues
Replies: 4
Views: 6022

[solved[ Re: ESP32 Flash SPI Speed Issues

ESP_Sprite:

You're right on the money: I had an I2C device hanging off of GPIO21 and 22 which also happen to be used by SPI flash on the ESP32-WROVER. This was causing my SPI Flash to be very flaky.

Removing my device from those two GPIOs cleared everything up.

Thanks for the pro-tip!
-AD
by autodog
Sat Sep 21, 2019 9:15 pm
Forum: Hardware
Topic: Entering automatic bootloader with esp32_devkitc (without using usb)
Replies: 3
Views: 5733

Re: Entering automatic bootloader with esp32_devkitc (without using usb)

Ignoring flashing for a moment, do you see anything on your USB-Serial adapter? You should see some form of debug output when you power up the device. If not, then you'll want to verify your TX/RX connections aren't swapped, UART is configured to the correct baud rate (e.g. 115200 8-N-1), etc. When ...
by autodog
Sat Sep 21, 2019 5:50 am
Forum: Hardware
Topic: ESP32 Flash SPI Speed Issues
Replies: 4
Views: 6022

ESP32 Flash SPI Speed Issues

Hey everyone, I have an ESP32-WROVER-B on multiple custom PCBs with an issue I can't explain: - If I set the menuconfig -> Serial flasher config -> Flash SPI speed to 26, 40, or 80MHz I can flash an image successfully but I will receive a checksum error when the device reboots - If I set the menucon...