Schematic of [Example] ESP32 Reference Design
SDA
AIN0
ESP_IO18
ESP_IO27
SCL
ESP_IO4
ESP_IO32
ESP_IO13
ESP_IO33
ESP_RX
C6
Capacitance
=10uF
U2
Manufacturer Part Number
MCP23017-E/SO
ESP_IO2
C4
Capacitance
0.1uF
ESP_IO35
ESP_IO23
USB_D-
C8
Capacitance
0.1uF
ESP_IO5
ESP_IO25
ESP_IO14
ESP_IO0
ESP_TX
USB_D+
ESP_IO16
C3
Capacitance
22uF
ESP_IO17
ESP_IO15
USB_D+
ESP_IO26
AIN1
C7
Capacitance
10uF
ESP_IO12
USB_D-
ESP_IO34
C2
Capacitance
10uF
ESP_IO19
R3
Resistance
10kΩ
VUSB
VUSB
+3V3
+3V3
R8
Resistance
4.7kΩ
R5
Resistance
5.1KΩ
+3V3
+3V3
+3V3
+3V3
R4
Resistance
4.7kΩ
+3V3
R7
Resistance
10kΩ
+3V3
+3V3
U4
Manufacturer Part Number
USB4110-GF-A
U3
Manufacturer Part Number
TPS564201DDCR
U5
Manufacturer Part Number
ADS1115IDGSR
R2
Resistance
10KΩ
U1
Manufacturer Part Number
ESP32-WROOM-32