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CC1
ESP_TX
CC2
USBDP
USBDN
ESP_RX
USBDN
USBDP
CC2
USBDP
D1
VBUS
+3V3
+5V
C2
Capacitance
0.1uF
VBUS
+5V
+3V3
R2
Resistance
Resistance
Resistance
5.1kΩ
C9
Capacitance
10uF
R3
Resistance
Resistance
Resistance
5.1kΩ
C5
Capacitance
10uF
IC1

ESP-WROOM-02U Reference Design