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Home/wireless

Tag: wireless

Using other than a wired connection to transfer signals or power. Includes optical and (ultra)sound, but most often refers to RF (radio-frequent). Distances can be as low as centimeters (e.g. RFID), t…

volt.tech Latest Questions

Alex thomas
  • 0
Alex thomas
Asked: November 18, 2022In: Wireless Connectivity

ESP32 Wrover Resets Upon Contactor Shutdown (Noise)?

  • 0

Hello, I would like to ask why my ESP32 wrover resets every time the contactor on the ‘power line’ closes else it works OK. Regards Alex

Hello, I would like to ask why my ESP32 wrover resets every time the contactor on the ‘power line’ closes else it works OK.

Regards

Alex

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connectivitycontactoresp32espressifpower linewirelesswrover
  1. nidhi singh
    Added an answer on November 23, 2022 at 11:04 am

    Hello, Likely either EMC or a power force dip. Make sure the power supply of the ESP is well-isolated from the contactor coil. Thanks & Regards Nidhi Singh

    Hello, Likely either EMC or a power force dip. Make sure the power supply of the ESP is well-isolated from the contactor coil.

    Thanks & Regards

    Nidhi Singh

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  • 1 Answer
Answer
vikas Nagpal
  • 0
vikas Nagpal
Asked: November 4, 2022In: Wireless Connectivity

ESP32-C3 Flashing?

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Hello, I am going to flash the controller via ESP- PROG Board. Do I need external quartz for the controller in this case? Thank you for your help!

Hello,

I am going to flash the controller via ESP- PROG Board.
Do I need external quartz for the controller in this case?

Thank you for your help!

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boardconnectivityesp- progesp32ESP32-C3flashingwireless
  1. ashishgawade
    Added an answer on November 8, 2022 at 10:08 am

    Yes, the C3 always needs a crystal to do anything, including flashing.

    Yes, the C3 always needs a crystal to do anything, including flashing.

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  • 1 Answer
Answer
vikas Nagpal
  • 0
vikas Nagpal
Asked: October 17, 2022In: Wireless Connectivity

ESP32C3 BLE5.0 and Long- Range BLE?

  • 0

Hi, I am interested in increasing the BLE range of the ESP32C3 and I’m a little confused about BLE 5.0 vs 4.2, as I understand it BLE 5.0 is long-range. Is BLE 5.0 purely a hardware-level change( that the programmer doesn’t ...Read more

Hi,
I am interested in increasing the BLE range of the ESP32C3 and I’m a little confused about BLE 5.0 vs 4.2, as I understand it BLE 5.0 is long-range.

Is BLE 5.0 purely a hardware-level change( that the programmer doesn’t see) or are there software-level changes?
I notice there are configuration options for BLE 5.0 in the menu config, how should this be configured?

If there are software-level changes are there any examples of BLE 5.0 used as a GATT server?
Thanks

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bleble5.0esp32c3gatt serverwireless
  1. nidhi singh
    Added an answer on October 20, 2022 at 9:51 am
    This answer was edited.

    You have to use ESP_BLE_GAP_PHY_2M or ESP_BLE_GAP_PHY_CODED settings (just play with settings). https://github.com/espressif/esp-idf/blob/master/examples/bluetooth/bluedroid/ble_50/ble50_security_server/main/ble50_sec_gatts_demo.c#L52-L54

    You have to use ESP_BLE_GAP_PHY_2M or ESP_BLE_GAP_PHY_CODED settings (just play with settings).

    https://github.com/espressif/esp-idf/blob/master/examples/bluetooth/bluedroid/ble_50/ble50_security_server/main/ble50_sec_gatts_demo.c#L52-L54

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vikas Nagpal
  • 0
vikas Nagpal
Asked: October 11, 2022In: Wireless Connectivity

Pairing a Bluetooth Classic 2.0 trackpad with the ESP32. Possible? Simple?

  • 0

Hello everyone, Is it possible to pair an Apple Magic Trackpad( 1. gen-> Bluetooth Classic2.0) with the ESP32? How simple is that? Can I be sure it will work? I’m asking as I had a hard time changing any projects doing similar ...Read more

Hello everyone,

Is it possible to pair an Apple Magic Trackpad( 1. gen-> Bluetooth Classic2.0) with the ESP32? How simple is that? Can I be sure it will work?

I’m asking as I had a hard time changing any projects doing similar effects, even with Bluetooth keyboards.

Thank you in advance!

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bluetoothconnectivityesp32keyboardswireless
  1. Alex thomas
    Added an answer on October 13, 2022 at 10:37 am

    Try using a cell phone app like" Bluetooth Terminal HC- 05" If you can pair and receive data with this from the trackpad also you can do it with an ESP32. It's my goto App for looking at data streams from Bluetooth.

    Try using a cell phone app like” Bluetooth Terminal HC- 05″
    If you can pair and receive data with this from the trackpad also you can do it with an ESP32.
    It’s my goto App for looking at data streams from Bluetooth.

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Answer
Alex thomas
  • 0
Alex thomas
Asked: September 14, 2022In: Wireless Connectivity

Wireless Remote Controls?

  • 0

Which wireless remote controls are FCC pre-certified?

Which wireless remote controls are FCC pre-certified?

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controlsfccremotewireless
  1. Best Answer
    ashishgawade
    Added an answer on September 22, 2022 at 10:34 am

    The keyfob transmitters and the handheld transmitters all have FCC and Industry Canada transmitter certifications. The 433 MHz versions have also been tested and found to conform to the ETSI RED directive.

    The keyfob transmitters and the handheld transmitters all have FCC and Industry Canada transmitter certifications. The 433 MHz versions have also been tested and found to conform to the ETSI RED directive.

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  • 1 Answer
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