User Leds; User Buttons - Panasonic PAN9520 ETU User Manual

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PAN9520 ETU Evaluation Tool

3.6 User LEDs

There are three LEDs that can be used for general purposes on the PAN9520 ETU.
The LEDs are connected to GPIOs via pin header X3 and hence every LED can be
disconnected by unplugging the related jumper.
The following figure and table show details on the assigned pins.
LED Color
LED1 Red
LED2 Green
LED3 Blue

3.7 User Buttons

For interacting with the PAN9520, there are four user buttons (tactile switches) on the ETU.
After start-up, all of these buttons can be used as general purpose buttons (for additional
functionality of SW1 please refer to
When pressing a button, the corresponding GPIO will be connected to ground, which makes the
buttons active-low. Needed pull-up resistors can be either connected on the ESP32-S2 IC by
software, or externally by using jumpers on the GPIO breakout header (for details please refer
 3.5 Breakout Pin
to
The following table describes which GPIOs are connected to the buttons.
Button Name
SW1/IO0
SW2
SW3
SW4
User Guide Rev. 1.0
PAN9520/ESP32-S2
Pin Name
GPIO21
GPIO33
GPIO38
 SW1/IO0 at
Header).
PAN9520/ESP32-S2
Pin Name
GPIO0
GPIO1
GPIO2
GPIO3
PAN9520 Footprint ESP32-S2 Footprint
H11 28
C1 37
A5 42
Start-Up).
PAN9520 Footprint ESP32-S2 Footprint
I11 5
B11 6
C11 7
C12 8
3 PAN9520 ETU
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