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    PCB Design for ESP32 Stand alone module

    PCB Designing
    esp32 pcb
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    • 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)

        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
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                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.

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                originally drafted and shared by dusty_nv

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