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USB1
U1
D2
GPIO36
ESP_RX
CC1
RS485_TX
RS485_EN
RS485_TX
GPIO15
GPIO14
ESP_TX
GPIO21
GPIO34
GPIO25
CC2
ESP_IO0
USBDN
ESP_IO0
GPIO22
GPIO16
GPIO5
USBDP
GPIO13
GPIO17
GPIO12
RS485_EN
GPIO35
GPIO33
RS485_RX
USBDN
ESP_RX
USBDN
ESP_EN
USBDP
GPIO2
RS485_RX
GPIO26
CC2
GPIO39
GPIO32
ESP_TX
ESP_EN
GPIO23
ESP_IO0
GPIO27
ESP_EN
USBDP
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
R1
Resistance
Resistance
Resistance
10kΩ
PWR
R2
Resistance
Resistance
Resistance
5.1kΩ
C9
Capacitance
10uF
RST
R4
Resistance
1kΩ
Q1
R3
Resistance
Resistance
Resistance
5.1kΩ
U2
C5
Capacitance
10uF
IC3
R8
Resistance
10kΩ
BOOT
R9
Resistance
10kΩ
IC1
Q2


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ESP32 RS485 (Modbus) Controller Module

ESP32 RS485 (Modbus) Controller Module thumbnail
This project is a controller module that uses the ESP32-WROOM-32E and the MAX3485 to communicate with Modbus devices. It has a USB-C port for power and data, a voltage regulator for stable operation. It also has a CH340C chip for USB to serial conversion. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #reusable #module #simple-embedded #espressif #template #MAX3485 #RS485 #maximintegrated

Pricing & Availability

Distributor

Qty 1

Arrow

$3.51–$3.88

Digi-Key

$10.25–$19.97

LCSC

$6.16–$6.94

Mouser

$10.67

Verical

$4.13–$4.24

Controls