Schematic of [Example] ESP32 Reference Design
U2
Manufacturer Part Number
MCP23017-E/SO
R10
Resistance
10kΩ
L1
Inductance
=2.2uH
R2
Resistance
10KΩ
R3
Resistance
10kΩ
R12
Resistance
1kΩ
R14
Resistance
10kΩ
R9
Resistance
4.7kΩ
R11
Resistance
1kΩ
R8
Resistance
4.7kΩ
R5
Resistance
5.1KΩ
U4
Manufacturer Part Number
USB4110-GF-A
U3
Manufacturer Part Number
TPS564201DDCR
R13
Resistance
10kΩ
U5
Manufacturer Part Number
ADS1115IDGSR
Q1
Q2
R4
Resistance
4.7kΩ
R6
Resistance
33.2KΩ
R7
Resistance
10kΩ
A3
SDA
AIN0
ESP_IO18
ESP_IO27
SCL
A6
ESP_IO4
PWM1
ESP_IO32
ESP_IO13
PWM2
PWM5
A1
ESP_IO33
ESP_RX
A7
A0
PWM0
ESP_IO2
A2
PWM9
SDA
ESP_IO35
PWM6
ESP_IO23
USB_D-
ESP_IO5
ESP_IO25
SDA
ESP_IO14
ESP_IO0
PWM7
ESP_TX
USB_D+
ESP_IO16
DTS
USB_D-
ESP_IO17
ESP_IO15
ESP_TX
USB_D+
ESP_IO26
AIN1
AIN3
ESP_IO0
RST
SCL
ESP_IO12
PWM3
ESP_RX
USB_D-
ESP_IO34
A5
AIN2
A4
PWM8
SCL
ESP_EN
ESP_IO19
USB_D+
PWM4
U7
Manufacturer Part Number
PCA9685PW,118
VUSB
VUSB
+3V3
+3V3
+3V3
VIN
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
C6
Capacitance
=10uF
C4
Capacitance
0.1uF
C8
Capacitance
0.1uF
C3
Capacitance
22uF
C1
Capacitance
0.1uF
U6
Manufacturer Part Number
CP2102N-Axx-xQFN28
C7
Capacitance
10uF
C2
Capacitance
10uF