Home/wifi

Tag: wifi

Questions on the implementation of Wi-Fi (802.11) hardware. Note shopping questions are off-topic.

volt.tech Latest Questions

vikas Nagpal
  • 0
vikas Nagpal
Asked: December 28, 2022In:
  • 0

Hello, I presently research and suppose about the possibilities to initial flash and later update the firmware on an ESP32 based product from the price point, I would like to use an ESP32-C3 and the built-in USB port to flash & ...Read more

Hello,

I presently research and suppose about the possibilities to initial flash and later update the firmware on an ESP32 based product from the price point, I would like to use an ESP32-C3 and the built-in USB port to flash & update the firmware.
That indeed would save the USB2UART chip.
I can’t go with the S2 as I need WiFi and Bluetooth.

But I didn’t find any tutorial/extended info if/how this is possible. The only things I found

  • DFU — Using the native USB on ESP32-S2 for flashing the firmware
  • Nearly was mentioned that C3 USB can be used in CDC mode
  • CircuitPython on Espressif SoCs

so I currently don’t know if it’s possible. I hope anybody can shine some light on this for me;-)

Thank and Regards

Vikas

Read less
bluetoothesp32espressiffirmwareusbusb2uartwifi
  1. ashishgawade

    Hello, Thanks for reaching out to Volt Engineering Community. The C3 has a USB device that effectively replaces an external USB- serial and USB- JTAG chip; you should be suitable to use that to flash updates. Please let us know if it answers your question. Regards, Ashish

    Hello,

    Thanks for reaching out to Volt Engineering Community.

    The C3 has a USB device that effectively replaces an external USB- serial and USB- JTAG chip; you should be suitable to use that to flash updates.

    Please let us know if it answers your question.

    Regards,

    Ashish

    See less
    • 0
nidhi singh
  • 0
nidhi singh
Asked: October 14, 2022In:
  • 0

Hello, I want to use ESP32- S3 for a device that makes no use of WiFi announcement Bluetooth, so I will keep them disabled. My question is what would be the expected current draw with the radio disabled? Trying to figure ...Read more

Hello,

I want to use ESP32- S3 for a device that makes no use of WiFi announcement Bluetooth, so I will keep them disabled. My question is what would be the expected current draw with the radio disabled? Trying to figure out my power supply conditions.

Thanks

Read less
esp32esp32-s3powerradiowifi
  1. Alex thomas

    Hi, You can find this information in the ESP32- S3 datasheet, Table 4- 9" Current Consumption in Modem- sleep Mode".( Modem- sleep mode is the mode where the radios( modems) are turned off. That is your case.) The numbers range from 13mA to 107mA, depending on the CPU frequence, which peripherals arRead more

    Hi,

    You can find this information in the ESP32- S3 datasheet, Table 4- 9″ Current Consumption in Modem- sleep Mode”.( Modem- sleep mode is the mode where the radios( modems) are turned off. That is your case.)
    The numbers range from 13mA to 107mA, depending on the CPU frequence, which peripherals are enabled, and what the CPUs are doing. For example, if the CPU frequency is 80 MHz and both cores are running, the current consumption would be in the range of 33 to 47 mA.

    See less
    • 0
vikas Nagpal
  • 0
vikas Nagpal
Asked: September 8, 2022In:
  • 0

What’s the difference between WiFi and WLAN?

What’s the difference between WiFi and WLAN?

Read less
frequencyradiowifiwlan
  1. Vipul Verma

    1. WLAN is a type of computer network in a relatively small area that dismisses the use of physical means of inter-connectivity. 2. WI-FI is a trademark name to brand devices compliant to IEEE 802.11 standards. 3. Devices in a WLAN essentially use WI-FI branded products. 4. A WI-FI ready device simpRead more

    1. WLAN is a type of computer network in a relatively small area that dismisses the use of physical means of inter-connectivity.

    2. WI-FI is a trademark name to brand devices compliant to IEEE 802.11 standards.

    3. Devices in a WLAN essentially use WI-FI branded products.

    4. A WI-FI ready device simply means that it is ready for network operation within a WLAN.

     

    See less
    • 1
vikas Nagpal
  • 0
vikas Nagpal
Asked: August 29, 2022In:
  • 0

Hello, I’ve enforced OTA on ESP32 through WiFi by setting up server on ESP32, and likewise through WiFi by using http. Now I want to do OTA with http but through GSM network. I’ve enforced ESP32 SIM800L module communication to the pall, ...Read more

Hello,
I’ve enforced OTA on ESP32 through WiFi by setting up server on ESP32, and likewise through WiFi by using http.

Now I want to do OTA with http but through GSM network.

I’ve enforced ESP32 SIM800L module communication to the pall, so my GSM connection is good.

Can any bone please let me know of an illustration for OTA on ESP32 through GSM?

Thankyou.

Read less
esp32gsmotasim800lwifi
  1. Alex thomas

    There's no difference between doing it through GSM or wifi or ethernet, any http functions including OTA will just use whatever interface is configured. You should just have to run esp_https_ota( & config) nearly in your app and it'll work.

    There’s no difference between doing it through GSM or wifi or ethernet, any http functions including OTA will just use whatever interface is configured.
    You should just have to run esp_https_ota( & config) nearly in your app and it’ll work.

    See less
    • 0
vsharma
  • 0
vsharma
Asked: July 30, 2022In:
  • 0

How to interface a PSoC (e.g. PSoC 63) with a WiFi module (e.g. CY43439)? Is this WiFi-host-driver agnostic to the hardware interface like SPI or SDIO?

How to interface a PSoC (e.g. PSoC 63) with a WiFi module (e.g. CY43439)?

Is this WiFi-host-driver agnostic to the hardware interface like SPI or SDIO?

Read less
psocsdiospiwifi
  1. pallavi sharma

    For the wifi chip that you want to use, driver should have the support or implementation of the interface that you need. For 43439, both the SDIO and SPI interfaces are supported between host and WLAN chip in WHD.

    For the wifi chip that you want to use, driver should have the support or implementation of the interface that you need. For 43439, both the SDIO and SPI interfaces are supported between host and WLAN chip in WHD.

    See less
    • 0
techfreak
  • 0
techfreak
Asked: June 24, 2022In:
  • 0

We are facing an issue while connecting the ESP32 device with the Android mobile using ESP32 Wifi. We have tried to connect the mobile device and ESP32 manually by using ESP32’s SSID and password. It seems to be, when the ...Read more

We are facing an issue while connecting the ESP32 device with the Android mobile using ESP32 Wifi. We have tried to connect the mobile device and ESP32 manually by using ESP32’s SSID and password. It seems to be, when the ESP32 signal strength is good/excellent then the android mobile get connects to the ESP32.
And when the ESP32 signal strength is poor then the android mobile not connects to the ESP32. We have tested the issue on various android device version (6.0, 6.0.1,7.0, 8.0, 8.1 etc.) But, it sometimes works or sometimes may not work due to the poor ESP32 signals.

Can anyone please let us know the behavior of the ESP32 is correct?

Read less
androidesp32espressifwifi
  1. pallavi sharma

    Are you setting ESP32 in AP mode, and the trying to connect your smart phone with the ESP32 SoftAP ? 2 meters shouldn't get the signal poor like that. Can you read the RSSI from the phones ? Which hardware are you using? Could it be that the antenna is missing ?

    Are you setting ESP32 in AP mode, and the trying to connect your smart phone with the ESP32 SoftAP ?
    2 meters shouldn’t get the signal poor like that.
    Can you read the RSSI from the phones ?
    Which hardware are you using?
    Could it be that the antenna is missing ?

    See less
    • 0
Anonymous
  • 0
Anonymous
Asked: May 17, 2022In:
  • 0

How does Espressif ESP32 adjust Wi-Fi TX power?

How does Espressif ESP32 adjust Wi-Fi TX power?

Read less
esp32espressiftx powerwifi
  1. nakhtar

    Configure Component config -> PHY -> Max Wi-Fi TX power(dBm) via menuconfig, and the max value is 20 dB. Use API esp_err_t esp_wifi_set_max_tx_power(int8_t power);.

    Configure Component config -> PHY -> Max Wi-Fi TX power(dBm) via menuconfig, and the max value is 20 dB. Use API esp_err_t esp_wifi_set_max_tx_power(int8_t power);.

    See less
    • 0
Anonymous
  • 0
Anonymous
Asked: May 17, 2022In:
  • 0

What is the maximum value of ESP32 Wi-Fi RF power？

What is the maximum value of ESP32 Wi-Fi RF power？

Read less
espesp32espressifrf powerwifi
  1. nakhtar

    The RF power of ESP32 is 20 dB, which is exactly the maximum value.

    The RF power of ESP32 is 20 dB, which is exactly the maximum value.

    See less
    • 0
k.msood
  • 0
k.msood
Asked: May 17, 2022In:
  • 0

In ESP32WROOM32D using FTP API to download and upload files. While downloading the file from FTP server “wifi:bcn timeout,ap_probe_send_start” is coming.

In ESP32WROOM32D using FTP API to download and upload files. While downloading the file from FTP server “wifi:bcn timeout,ap_probe_send_start” is coming.

Read less
esp32esp32-wroom-32despressifftp apiftp serverwifi
  1. nakhtar

    Hi, Regarding your issue release heap memory.

    Hi,

    Regarding your issue release heap memory.

    See less
    • 0
Jo Abdaal
  • 1
Jo Abdaal
Asked: March 24, 2022In:
  • 1

What is the maximum number of node layers allowed in ESP32 Wi-Fi Mesh?

What is the maximum number of node layers allowed in ESP32 Wi-Fi Mesh?

Read less
esp32espressifwifi
  1. nakhtar

    Hi, In ESP32 WiFi Mesh for tree topology structure, the max number is 25 and for chain topology structure, the max number is 1000.

    Hi,
    In ESP32 WiFi Mesh for tree topology structure, the max number is 25 and
    for chain topology structure, the max number is 1000.

    See less
    • 0