BT and WiFi Dual Core simultaneous operation using ESP32?
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Hey guys,
I recently learned that ESP32 has Tensilica dual-core processor. So I'm just wondering whether I can run Bluetooth on one core and WiFi on other core. Is this possible?
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Hi @kowshik1729, That was an interesting question. it can be done, but since the wifi and Bluetooth shares one radio and only one antenna, switching back and forth between wifi and Bluetooth same time while receiving packets will be difficult and cause some packet loss, but it can be done.
But instead of doing that, you can schedule two task's and switch between the task will only occupy wifi or Bluetooth. (Just a suggestion)
There is a special option called “Software controls WiFi/ Bluetooth coexistence” it can control the ESP32's Bluetooth and Wi-Fi coexistence using software, more details: https://www.espressif.com/sites/default/files/documentation/ESP32_FAQs__EN.pdf
Source: https://www.espressif.com/sites/default/files/documentation/ESP32_FAQs__EN.pdf
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@salmanfaris Thanks for the detailed explanation. I would like to add that, while the ESP32 switches from BLE to Wi-Fi so fast, the power consumed will also be very high, and also there is a high risk of having losing data. Hence one has to use an RF High-speed switch like this https://www.digikey.in/short/zf3dzc and have two antennas to switch between the Bluetooth and Wi-Fi. This is the best solution I've got, let me know if you find any.
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@kowshik1729 If you are using an external high-speed switch, there is only one one clock generator for both wifi and BLE and the high-speed switch you mentioned is Ultra-Wideband (UWB) 3–8 GHz from its datasheet
you also check this solution that I shared in the previous post.
@salmanfaris said in BT and WiFi Dual Core simultaneous operation using ESP32?:
There is a special option called “Software controls WiFi/ Bluetooth coexistence” it can control the ESP32's Bluetooth and Wi-Fi coexistence using software, more details: https://www.espressif.com/sites/default/files/documentation/ESP32_FAQs__EN.pdf
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Hi all,
I recently came across this post where they have shown photos printed on PCB in high resolution. I would like to know how to add this kind of photos to the silkscreen layers of the PCB in Eagle/Altium.
Adding such kind of photos will be attractive for beginners and also can be used for educational purposes too.
Please let me know in case anybody knows. -
@kowshik1729 said in Error downloading package:
The license of the https://dl.espressif.com/dl/package_esp32_index.json might be expired(If this is the reason you can't do anything but just wait until they re-activate the license)
If the page liecenceIt's good.
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@abdultechguy999 usually https://dl.espressif.com/dl/package_esp32_index.json this works while installing through boards manager. But I faced the same issue some times. it might be due to a couple of reasons.
Bad Internet connectivity
The license of the https://dl.espressif.com/dl/package_esp32_index.json might be expired(If this is the reason you can't do anything but just wait until they re-activate the license)
I remember there is a way to install the board files offline by downloading from some github repos.
All the best.
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Ok, then you need to check the LM2596 output current and voltage!