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Files

Schematic

Layout

3D View

USB1
U1
PWR
C9
Capacitance
10uF
C5
Capacitance
10uF
U2
IC3
IC1
GPIO36
D1
C4
Capacitance
10uF
ESP_RX
+3V3
CC1
VBUS
RS485_TX
+3V3
RS485_EN
C11
Capacitance
0.1uF
RS485_TX
+3V3
GPIO15
GPIO14
C8
Capacitance
10uF
ESP_TX
GPIO21
GPIO34
GPIO25
CC2
ESP_IO0
USBDN
+3V3
ESP_IO0
GPIO22
C6
Capacitance
0.1uF
GPIO16
Q1
GPIO5
+5V
USBDP
GPIO13
GPIO17
GPIO12
+3V3
RS485_EN
GPIO35
GPIO33
RS485_RX
C10
Capacitance
0.1uF
USBDN
ESP_RX
+3V3
C2
Capacitance
0.1uF
VBUS
USBDN
ESP_EN
USBDP
+5V
GPIO2
RS485_RX
C12
Capacitance
0.1uF
GPIO26
CC2
GPIO39
+3V3
+3V3
GPIO32
ESP_TX
ESP_EN
GPIO23
Q2
ESP_IO0
GPIO27
ESP_EN
+3V3
USBDP
D2
R1
Resistance
Resistance
Resistance
10kΩ
R2
Resistance
Resistance
Resistance
5.1kΩ
RST
R4
Resistance
1kΩ
R3
Resistance
Resistance
Resistance
5.1kΩ
R8
Resistance
10kΩ
BOOT
R9
Resistance
10kΩ

ESP32 RS485 (Modbus) Controller Module