@Suhailjr But I think since it's not a plug and plug play system and it will laying on the PCB for the long term, it might be fine. for me, it's similar to the Intel Edison and the PICO-IMX7 System-on-Module

@kowshik1729 I think that might not get since the platform is not opensource! but they provided everything you need to develop a system with that.

@Anudeep Thanks a lot m8, I actually made a very silly mistake of including the https:// while entering FIREBASE_HOST, where I must have entered the Domain name alone and removed the https:// extension. Thanks again for replying that quick. Cheers.

@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

Hi @Richu-Bini, The Uart Baud Rate Register (UBRR) is used to set the clock for the UART shift registers and For standard crystal and resonator frequencies, the most commonly used baud rates for asynchronous operation can be generated by using the UBRR settings provided by the AVR Datasheet: AVR306: Using the AVR USART on tinyAVR and megaAVR devices And you can find the equation from the datasheet to calculate the UBRR values depends on the clock source it has. more details at the AVR306: Using the AVR USART on tinyAVR and megaAVR devices src: http://www.avrbeginners.net/architecture/uart/uart.html#baud_generator resource: https://cache.amobbs.com/bbs_upload782111/files_22/ourdev_508497.html http://www.avrbeginners.net/architecture/uart/uart.html#baud_generator