Table of Contents
Advertisement
PAN9520 ETU Evaluation Tool
Arduino
Function
Pin
0
GPIO/UART
(RX/TX: depending
on "UART Pin Sel."
setup)
3.9 Arduino Board/Shield Configuration
The ETU can be used either as Arduino board or as Arduino shield. The UART communication
and the 5 V Power input/output configuration is different between these both modes. Jumpers
on pin headers "UART Pin Sel." and "5V Sel." are used for configuring the desired mode.
The following figure and table shows where the pin headers are located and which jumper
settings can be used.
Configuration
Board
Shield
User Guide Rev. 1.0
PAN9520/ESP32-S2
Pin Name
GPIO18
(DAC_2)/GPIO17
(DAC_1)
UART Pin Sel.
5V Sel.
3 PAN9520 ETU
PAN9520 Footprint
ESP32-S2 Footprint
I7/I8
24/23
Description
Ard. Pin 0: GPIO18 (U1RXD)
Ard. Pin 1: GPIO17 (U1TXD)
5V Sel: "Out" → no diode
Ard. Pin 0: GPIO17 (U1TXD)
Ard. Pin 1: GPIO18 (U1RXD)
5V Sel: "In" → protection diode in 5 V
power path
Page 19 of 35
Advertisement
Table of Contents
