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Schematic

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R3
Resistance
10kΩ
R12
Resistance
1kΩ
A3
SDA
AIN0
R14
Resistance
10kΩ
ESP_IO18
A5
R9
Resistance
4.7kΩ
ESP_IO27
B3
SCL
A6
ESP_IO36
A4
ESP_IO4
B5
PWM1
ESP_IO32
ESP_IO14
ESP_IO13
A0
PWM15
A3
PWM13
AIN3
ESP_IO25
R17
Resistance
10kΩ
PWM2
R11
Resistance
1kΩ
PWM5
A1
A6
AIN1
ESP_IO33
B1
ESP_RX
A2
A7
A0
PWM0
ESP_IO2
A2
PWM9
PWM10
SDA
ESP_IO35
R8
Resistance
4.7kΩ
R5
Resistance
5.1KΩ
ESP_IO32
PWM6
ESP_IO23
USB_D-
ESP_IO13
R13
Resistance
10kΩ
ESP_IO5
ESP_IO25
SDA
ESP_IO14
ESP_IO33
ESP_IO0
ESP_IO12
A1
B6
PWM7
ESP_TX
AIN2
PWM11
USB_D+
ESP_IO34
ESP_IO16
DTS
USB_D-
B0
ESP_IO17
R4
Resistance
4.7kΩ
ESP_IO15
ESP_TX
A7
R6
Resistance
33.2KΩ
USB_D+
ESP_IO27
ESP_IO26
AIN1
PWM12
AIN3
ESP_IO26
ESP_IO0
RST
ESP_IO39
SCL
ESP_IO12
B2
PWM3
ESP_RX
USB_D-
ESP_IO34
A5
AIN2
R16
Resistance
10kΩ
A4
R18
Resistance
10kΩ
R7
Resistance
10kΩ
PWM8
SCL
B7
ESP_EN
B4
AIN0
ESP_IO19
ESP_IO35
USB_D+
R15
Resistance
10kΩ
PWM14
PWM4
U7
Manufacturer Part Number
PCA9685PW,118
VUSB
+3V3
VUSB
+3V3
+3V3
VIN
+3V3
C6
Capacitance
=10uF
+3V3
C4
Capacitance
0.1uF
+3V3
+3V3
C8
Capacitance
0.1uF
+3V3
+3V3
+3V3
C3
Capacitance
22uF
+3V3
+3V3
+3V3
C1
Capacitance
0.1uF
C7
Capacitance
10uF
C2
Capacitance
10uF
+3V3
+3V3
+3V3
+3V3
R10
Resistance
10kΩ
U4
Manufacturer Part Number
USB4110-GF-A
L1
Inductance
=2.2uH
U3
Manufacturer Part Number
TPS564201DDCR
U5
Manufacturer Part Number
ADS1115IDGSR
Q1
Q2
U6
Manufacturer Part Number
CP2102N-A02-GQFN28
R2
Resistance
10KΩ

[Example] ESP32 Reference Design

[Example] ESP32 Reference Design thumbnail