Positioning Plug-In Components - Espressif Systems ESP32 Design Manuallines

!

2.2.2. Positioning Plug-in Components

For the USB interface, battery socket holder, power switch, SD card, headphone socket,
external speaker socket, debugging pin header, mounting hole, etc., the positioning of their
components should adhere to the following principles:
Taking component structures into account, trying to make mounting/connecting easy.
•
• Facilitating the actual debugging operation
Assisting trace routing
•
�� Note:
In particular, you need to pay special attention to plug-in direction, pin sequence, positive and negative
polarity of these components. It is recommended to label these points at the Top Overlayer.
For example:
Espressif
!
Figure 2-5. Reference Design for Module Placement
11 ! /19
2. PCB Layout Design
2019.01