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ESP32 RS485 (Modbus) Controller Module
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Files
Schematic
Layout
3D View
USB1
U1
U2
D2
GPIO36
ESP_RX
CC1
RS485_TX
RS485_EN
RS485_TX
GPIO15
GPIO14
ESP_TX
GPIO21
GPIO34
GPIO25
CC2
ESP_IO0
USBDN
C9
Capacitance
10uF
ESP_IO0
GPIO22
GPIO16
GPIO5
USBDP
GPIO13
GPIO17
GPIO12
RS485_EN
GPIO35
GPIO33
C5
Capacitance
10uF
RS485_RX
USBDN
ESP_RX
USBDN
ESP_EN
USBDP
GPIO2
RS485_RX
GPIO26
CC2
GPIO39
GPIO32
ESP_TX
ESP_EN
IC1
GPIO23
ESP_IO0
GPIO27
ESP_EN
USBDP
R1
Resistance
Resistance
Resistance
10kΩ
R2
Resistance
Resistance
Resistance
5.1kΩ
R4
Resistance
1kΩ
R3
Resistance
Resistance
Resistance
5.1kΩ
R8
Resistance
10kΩ
R9
Resistance
10kΩ
D1
C4
Capacitance
10uF
+3V3
VBUS
+3V3
C11
Capacitance
0.1uF
+3V3
C8
Capacitance
10uF
+3V3
C6
Capacitance
0.1uF
+5V
+3V3
C10
Capacitance
0.1uF
+3V3
C2
Capacitance
0.1uF
VBUS
+5V
C12
Capacitance
0.1uF
+3V3
+3V3
+3V3
PWR
RST
Q1
IC3
BOOT
Q2
Project
ESP32 RS485 (Modbus) Controller Module