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Schematic

Layout

Preview

R3
Resistance
10kΩ
R12
Resistance
1kΩ
R14
Resistance
10kΩ
R9
Resistance
4.7kΩ
R11
Resistance
1kΩ
R8
Resistance
4.7kΩ
R5
Resistance
5.1KΩ
R13
Resistance
10kΩ
R4
Resistance
4.7kΩ
R6
Resistance
33.2KΩ
R7
Resistance
10kΩ
SDA
AIN0
ESP_IO18
ESP_IO27
SCL
ESP_IO4
PWM1
ESP_IO32
ESP_IO13
PWM2
A1
ESP_IO33
ESP_RX
A0
PWM0
ESP_IO2
A2
ESP_IO35
ESP_IO23
USB_D-
ESP_IO5
ESP_IO25
SDA
ESP_IO14
ESP_IO0
ESP_TX
USB_D+
ESP_IO16
DTS
USB_D-
ESP_IO17
ESP_IO15
ESP_TX
USB_D+
ESP_IO26
AIN1
AIN3
RST
SCL
ESP_IO12
PWM3
ESP_RX
USB_D-
ESP_IO34
AIN2
SCL
ESP_IO19
USB_D+
U7
VUSB
VUSB
+3V3
+3V3
+3V3
VIN
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
C6
Capacitance
=10uF
C4
Capacitance
0.1uF
R10
Resistance
10kΩ
C8
Capacitance
0.1uF
C3
Capacitance
22uF
C1
Capacitance
0.1uF
C7
Capacitance
10uF
C2
Capacitance
10uF
R2
Resistance
10KΩ
U4
L1
Inductance
=2.2uH
U3
U5
U1
U6

[Example] ESP32 Reference Design

[Example] ESP32 Reference Design thumbnail