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Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More

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D2
GPIO36
CC1
ESP_TX
CC2
ESP_IO0
USBDN
USBDP
USBDN
ESP_RX
USBDN
USBDP
CC2
GPIO39
ESP_EN
ESP_EN
USBDP
D1
C4
Capacitance
10uF
VBUS
R1
Resistance
Resistance
Resistance
10kΩ
+3V3
R2
Resistance
Resistance
Resistance
5.1kΩ
+3V3
R4
Resistance
1kΩ
R3
Resistance
Resistance
Resistance
5.1kΩ
+5V
C2
Capacitance
0.1uF
C1
Capacitance
0.1uF
VBUS
+5V
+3V3
+3V3
PWR
C9
Capacitance
10uF
USB1
Q1
C5
Capacitance
10uF
Q2
U1
IC1


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ESP32 RS485 (Modbus) Controller Reference Design vbne

ESP32 RS485 (Modbus) Controller Reference Design vbne 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, and headers for connecting sensors and actuators. It also has a CH340C chip for USB to serial conversion. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #MAX3485 #RS485 #maximintegrated #reference-design

Pricing & Availability

Distributor

Qty 1

Arrow

$3.51–$3.85

Digi-Key

$10.07–$19.78

LCSC

$6.15–$6.95

Mouser

$9.98

Verical

$4.13–$4.28

Controls