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Schematic of ESP-WROOM-02 Reference Design
C4
Capacitance
10uF
C11
Capacitance
0.1uF
C8
Capacitance
10uF
C6
Capacitance
0.1uF
C7
Capacitance
0.1uF
C10
Capacitance
0.1uF
C12
Capacitance
0.1uF
D1
+3V3
VBUS
+3V3
+3V3
+3V3
+5V
+3V3
VBUS
+5V
+3V3
+3V3
ESP_RX
CC1
TOUT
ESP1
ADC
GPIO15
GPIO14
ESP_TX
CC2
ESP_IO0
USBDN
ESP_IO0
GPIO16
GPIO5
USBDP
GPIO13
TOUT
GPIO12
USBDN
ESP_RX
GPIO4
USBDN
ESP_EN
USBDP
GPIO2
RST
CC2
ESP_TX
ESP_EN
ESP_IO0
ESP_EN
USBDP
R1
Resistance
Resistance
Resistance
10kΩ
R8
Resistance
Resistance
Resistance
82kΩ
PWR
R7
Resistance
Resistance
Resistance
220kΩ
R2
Resistance
Resistance
Resistance
5.1kΩ
C9
Capacitance
10uF
R4
Resistance
1kΩ
EN
R3
Resistance
Resistance
Resistance
5.1kΩ
C5
Capacitance
10uF
U1
R6
Resistance
Resistance
Resistance
10kΩ
BOOT
R5
Resistance
Resistance
Resistance
10kΩ
Q1
IC1
Q2

ESP-WROOM-02 Reference Design