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    PCB Design for ESP32 Stand alone module

    PCB Designing
    pcb esp32
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    • kowshik1729
      kowshik1729 last edited by

      @Sharmila If you're programming the board for the first time using Arduino IDE then you need to burn the bootloader into the bare IC. I have a doubt when you said the IC is not getting programmed even though the GPIO0 is low.

      I wanna know is GPIO0 low all the time or did you pull it low momentarily using a button??

      S 1 Reply Last reply Reply Quote 0
      • S
        Sharmila @kowshik1729 last edited by

        @kowshik1729 Yes i m programming the board first time using arduion. GPIO 0 is low all the time.

        1 Reply Last reply Reply Quote 0
        • kowshik1729
          kowshik1729 last edited by kowshik1729

          @Sharmila GPIO0 must not be low all the time. It must be held low only for a moment. Because GPIO0 is a boot strap option for choosing between UART download and normal operation. Please refer to the datasheet and search boot strap. And also can you please post a snap of your newly designed board please?

          S 2 Replies Last reply Reply Quote 1
          • S
            Sharmila @kowshik1729 last edited by Sharmila

            @kowshik1729 thank you for the hint ! i will check it . schematic picture of my board is given below

            (freesnippingtool.com_capture_20200721122206.png)

            saheen_palayi 1 Reply Last reply Reply Quote 1
            • S
              Sharmila @kowshik1729 last edited by

              @kowshik1729 sorry, gpio 0 is low only till it is programmed. after that this will disconnected.

              1 Reply Last reply Reply Quote 0
              • kowshik1729
                kowshik1729 last edited by

                @Sharmila Reviewed your schematics. Have the following doubts

                1. Is this a USB receptacle?

                4f585013-72f9-4ceb-bc72-8fa40ff32a36-image.png

                1. Didn't find any option where you can pull the GPIO0 low and bring it back to normal state. Did you have a jumper connection or button between GPIO0 and GND?
                1 Reply Last reply Reply Quote 0
                • S
                  Sharmila last edited by

                  1. no.
                  2. we are using jumper for gpio 0th pin. please refer the below image.
                    freesnippingtool.com_capture_20200721200934.png
                  1 Reply Last reply Reply Quote 0
                  • saheen_palayi
                    saheen_palayi @Sharmila last edited by

                    This post is deleted!
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                    • A

                      The reason I wanna use online tools only is because, I have been using my company's lappy and I am restricted to install any other Softwares. So, online tools will be an easy way for me. by the way I have found another way too. EasyEDA provides an super easy solution for creating custom PCB shapes. It really came in handy for me.

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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.

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                    • @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.

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                    • @kowshik1729 Carrier board schematics for SoMs will be always available as they need to be modified as per customer application, however SoM design files are hard to get unless the H/W design is truly open-source.

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                    • @salmanfaris Actually the schematics files you've mentioned are the same files which I've got from them. They are carrier board design files.😢

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