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GPIO36
ESP_RX
RS485_TX
RS485_EN
RS485_TX
GPIO15
GPIO14
GPIO21
GPIO34
RS485_B
GPIO25
ESP_IO0
ESP_IO0
GPIO22
GPIO16
RS485_A
GPIO5
GPIO13
GPIO17
GPIO12
RS485_EN
GPIO35
GPIO33
RS485_RX
ESP_EN
GPIO2
RS485_RX
GPIO26
GPIO39
GPIO32
ESP_TX
ESP_EN
GPIO23
ESP_IO0
GPIO27
ESP_EN
C4
Capacitance
10uF
+3V3
+3V3
R1
Resistance
Resistance
Resistance
10kΩ
C11
Capacitance
0.1uF
+3V3
C8
Capacitance
10uF
PWR
+5V
R6
Resistance
10 Ω
RST
R5
Resistance
10 Ω
C6
Capacitance
0.1uF
R4
Resistance
1kΩ
+3V3
R7
Resistance
10 Ω
C5
Capacitance
10uF
C10
Capacitance
0.1uF
+3V3
C12
Capacitance
0.1uF
R8
Resistance
10kΩ
+3V3
+3V3
BOOT
R9
Resistance
10kΩ
+3V3
Q1
U2
TERM
IC3
U1
Q2
D3

ESP32 RS485 (Modbus) Controller Module gA8Z

ESP32 RS485 (Modbus) Controller Module gA8Z 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

Properties

creativecommons.org/licenses/by/4.0/

Pricing & Availability

Distributor

Qty 1

Digi-Key

$8.39–$10.45

LCSC

$6.56–$6.97

Mouser

$9.40

Controls