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Schematic

Layout

Preview

PWR
J2
J1
D2
C4
Capacitance
10uF
C3
Capacitance
10uF
C11
Capacitance
0.1uF
C8
Capacitance
10uF
C6
Capacitance
0.1uF
C7
Capacitance
0.1uF
C10
Capacitance
0.1uF
C2
Capacitance
0.1uF
C1
Capacitance
0.1uF
C12
Capacitance
0.1uF
U1
IC1
D1
ESP_RX
CC1
GPIO2
TOUT
USBDP
ADC
ESP_RX
USBDN
GPIO15
GPIO14
ESP_TX
USBDP
CC2
ESP_EN
ESP_IO0
USBDN
GPIO14
GPIO4
ESP_IO0
GPIO16
GPIO5
CC1
USBDP
GPIO13
TOUT
GPIO12
GPIO15
ADC
USBDN
ESP_RX
GPIO4
ESP_TX
USBDN
ESP_EN
GPIO12
USBDP
ESP_IO0
GPIO2
RST
RST
CC2
GPIO16
USBDN
GPIO5
GPIO13
ESP_TX
ESP_EN
ESP_IO0
ESP_EN
USBDP
+3V3
ESP1
VBUS
R1
Resistance
Resistance
Resistance
10kΩ
R8
Resistance
Resistance
Resistance
82kΩ
+3V3
R7
Resistance
Resistance
Resistance
220kΩ
R2
Resistance
Resistance
Resistance
5.1kΩ
+3V3
USB1
R4
Resistance
1kΩ
+3V3
R3
Resistance
Resistance
Resistance
5.1kΩ
+5V
+3V3
VBUS
+5V
+3V3
+3V3
+3V3
R6
Resistance
Resistance
Resistance
10kΩ
+5V
R5
Resistance
Resistance
Resistance
10kΩ
+3V3
C9
Capacitance
10uF
EN
Q1
C5
Capacitance
10uF
BOOT
Q2

ESP-WROOM-02U Reference Design