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Schematic

Layout

Preview

R3
Resistance
10kΩ
R8
Resistance
4.7kΩ
R5
Resistance
5.1KΩ
R4
Resistance
4.7kΩ
R6
Resistance
33.2KΩ
R7
Resistance
10kΩ
A3
ESP_IO39
SDA
AIN0
ESP_IO18
ESP_IO27
SCL
A6
ESP_IO4
ESP_IO32
ESP_IO13
ESP_IO36
ESP_CMD
ESP_EN
A1
ESP_IO33
ESP_RX
A7
A0
ESP_IO2
A2
SDA
ESP_IO35
ESP_IO23
USB_D-
ESP_IO5
ESP_IO25
ESP_IO14
ESP_SD0
ESP_IO0
ESP_CLK
ESP_TX
USB_D+
ESP_IO16
USB_D-
ESP_IO17
ESP_IO15
ESP_SD3
USB_D+
ESP_IO26
AIN1
AIN3
ESP_IO12
ESP_SD2
USB_D-
ESP_SD1
ESP_IO34
A5
AIN2
A4
SCL
ESP_IO19
USB_D+
VUSB
+3V3
VUSB
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
C6
Capacitance
=10uF
U2
Manufacturer Part Number
MCP23017-E/SO
C4
Capacitance
0.1uF
C8
Capacitance
0.1uF
C3
Capacitance
22uF
C1
Capacitance
0.1uF
C7
Capacitance
10uF
C2
Capacitance
10uF
R10
Resistance
10kΩ
U4
Manufacturer Part Number
USB4110-GF-A
L1
Inductance
=2.2uH
U3
Manufacturer Part Number
TPS564201DDCR
U5
Manufacturer Part Number
ADS1115IDGSR
R2
Resistance
10KΩ
U1
Manufacturer Part Number
ESP32-WROOM-32

[Example] ESP32 Reference Design

[Example] ESP32 Reference Design thumbnail