Schematic of [Example] ESP32 Reference Design
R3
Resistance
10kΩ
R12
Resistance
1kΩ
R14
Resistance
10kΩ
VUSB
R9
Resistance
4.7kΩ
VUSB
+3V3
+3V3
VIN
R11
Resistance
1kΩ
+3V3
+3V3
R8
Resistance
4.7kΩ
R5
Resistance
5.1KΩ
+3V3
+3V3
R13
Resistance
10kΩ
+3V3
+3V3
+3V3
R4
Resistance
4.7kΩ
+3V3
+3V3
R6
Resistance
33.2KΩ
R7
Resistance
10kΩ
+3V3
U7
Manufacturer Part Number
PCA9685PW,118
AIN0
PWM1
PWM2
PWM0
USB_D-
L1
Inductance
=2.2uH
SDA
USB_D+
DTS
USB_D-
ESP_TX
USB_D+
AIN1
AIN3
RST
SCL
ESP_RX
USB_D-
AIN2
USB_D+
C6
Capacitance
=10uF
C4
Capacitance
0.1uF
R10
Resistance
10kΩ
U4
Manufacturer Part Number
USB4110-GF-A
C8
Capacitance
0.1uF
C3
Capacitance
22uF
C1
Capacitance
0.1uF
C7
Capacitance
10uF
C2
Capacitance
10uF
U3
Manufacturer Part Number
TPS564201DDCR
U5
Manufacturer Part Number
ADS1115IDGSR
Q1
Q2
U6
Manufacturer Part Number
CP2102N-Axx-xQFN28