kerry / ESP32 RS485 (Modbus) Controller Module 1f3f

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flux

0:34

Thinking deeply about your request.

Vuoi aggiornare il modulo sostituendo MCU, interfaccia seriale e connettore.
  • Ho aggiornato il piano con:
    1. ESP32-C3-MINI al posto di ESP32-WROOM-32E
    2. interfaccia RS232 Transceiver al posto di MAX3485
    3. sostituzione del terminale a 2 posizioni con una RJ45 Connector
    4. mappatura RJ45:
      • pin 1 = TX RS232
      • pin 2 = RX RS232
      • pin 3 = GND
      • pin 4 = 5 V
Clicca Start nella barra del piano per avviare il lavoro. Se vuoi, posso anche aggiornare ancora il piano con il tipo di RJ45 desiderato.
Plan
#Goal
  • Update the current ESP32-based controller module to use an ESP32-C3-MINI microcontroller, transition the external serial interface from RS485 to RS232, and replace the existing 2-position terminal with an RJ45 connector. The RJ45 will be limited to pins 1-4 with the mapping: pin 1 (TX RS232), pin 2 (RX RS232), pin 3 (GND), and pin 4 (5V), maintaining the overall intent as an ESP32 controller with external serial connectivity and power distribution.
#Implementation plan
  1. Replace the MCU:
    1. Remove the ESP32-WROOM-32E component.
    2. Add the ESP32-C3-MINI component available in the Flux parts library.
    3. Reconfigure power, clock, and interface connections as required by the ESP32-C3-MINI.
  2. Update the serial interface:
    1. Remove the RS485 interface elements (including the MAX3485 transceiver) from the schematic.
    2. Add RS232 interface components suitable for ESP32-level RS232 signaling.
    3. Connect TX and RX lines appropriately from the ESP32-C3-MINI to the RS232 interface circuit.
  3. Update the external connector:
    1. Remove the 2-position terminal connector from the design.
    2. Add an RJ45 connector limited to using only pins 1-4.
    3. Map the RJ45 connector pins such that: pin 1 = TX RS232, pin 2 = RX RS232, pin 3 = GND, and pin 4 = 5V supply.
  4. Verify overall module functionality:
    1. Check all component interconnections including power distribution and serial communication.
    2. Update design documentation with the revised pin mappings and component selections.
#Success criteria
  • The ESP32-C3-MINI is correctly incorporated and interfaced in place of the ESP32-WROOM-32E.
  • The RS232 interface functions properly, with correct TX and RX links reestablished via the new interface components.
  • The RJ45 connector is correctly configured with pins 1-4 mapped as specified, ensuring reliable external serial connectivity and power distribution.
  • Updated schematic accurately reflects all changes and meets the revised design requirements.
30 days
edsol

edsol

procedi con il piano
30 days

flux

1:13

Responding to project update.

Thinking deeply about your request.

Evaluating project designators.

Working on your request.

Analyzing the schematic.

Working on your request.

Analyzing the schematic.

Working on your request.

Creating execution plan.

Vuoi procedere con la sostituzione del microcontrollore, il passaggio da RS485 a RS232 e il cambio del connettore esterno con la mappatura dei primi 4 pin.
  • Il piano è pronto da eseguire, in linea con il flusso consigliato per modifiche di progetto multi-step in Flux
  • Clicca Start nella barra del piano per avviare l’esecuzione
  • Se vuoi cambiare qualcosa prima di partire, dimmelo e aggiorno il piano
Plan
#Goal
  • Update the current ESP32-based controller module to use an ESP32-C3-MINI microcontroller, transition the external serial interface from RS485 to RS232, and replace the existing 2-position terminal with an RJ45 connector. The RJ45 will be limited to pins 1-4 with the mapping: pin 1 (TX RS232), pin 2 (RX RS232), pin 3 (GND), and pin 4 (5V), maintaining the overall intent as an ESP32 controller with external serial connectivity and power distribution.
#Implementation plan
  1. Replace the MCU:
    1. Remove the ESP32-WROOM-32E component.
    2. Add the ESP32-C3-MINI component available in the Flux parts library.
    3. Reconfigure power, clock, and interface connections as required by the ESP32-C3-MINI.
  2. Update the serial interface:
    1. Remove the RS485 interface elements (including the MAX3485 transceiver) from the schematic.
    2. Add RS232 interface components suitable for ESP32-level RS232 signaling.
    3. Connect TX and RX lines appropriately from the ESP32-C3-MINI to the RS232 interface circuit.
  3. Update the external connector:
    1. Remove the 2-position terminal connector from the design.
    2. Add an RJ45 connector limited to using only pins 1-4.
    3. Map the RJ45 connector pins such that: pin 1 = TX RS232, pin 2 = RX RS232, pin 3 = GND, and pin 4 = 5V supply.
  4. Verify overall module functionality:
    1. Check all component interconnections including power distribution and serial communication.
    2. Update design documentation with the revised pin mappings and component selections.
#Success criteria
  • The ESP32-C3-MINI is correctly incorporated and interfaced in place of the ESP32-WROOM-32E.
  • The RS232 interface functions properly, with correct TX and RX links reestablished via the new interface components.
  • The RJ45 connector is correctly configured with pins 1-4 mapped as specified, ensuring reliable external serial connectivity and power distribution.
  • Updated schematic accurately reflects all changes and meets the revised design requirements.
Mappa pin RS485
Aggiungi protezione seriale
Controlla alimentazione MCU
Esegui review dopo
30 days
​
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GPIO36
ESP_RX
CC1
RS485_B
RS485_TX
RS485_EN
RS485_TX
GPIO15
GPIO14
ESP_TX
GPIO21
GPIO34
GPIO34
RS485_B
GPIO25
CC2
GPIO27
ESP_IO0
GPIO25
USBDN
ESP_IO0
GPIO22
GPIO16
RS485_A
GPIO5
USBDP
GPIO13
GPIO17
GPIO12
RS485_EN
GPIO35
GPIO33
GPIO12
RS485_RX
ESP_RX
GPIO33
GPIO36
GPIO32
USBDN
ESP_EN
USBDP
GPIO2
RS485_RX
GPIO26
GPIO13
CC2
GPIO39
GPIO26
RS485_A
GPIO39
GPIO32
ESP_EN
GPIO14
ESP_TX
ESP_EN
GPIO23
ESP_IO0
GPIO27
ESP_EN
GPIO35
D1
C4
Capacitance
10uF
+3V3
VBUS
+3V3
R1
Resistance
Resistance
Resistance
10kΩ
C11
Capacitance
0.1uF
+3V3
C8
Capacitance
10uF
PWR
+5V
R6
Resistance
10 Ω
R2
Resistance
Resistance
Resistance
5.1kΩ
+3V3
C9
Capacitance
10uF
RST
R5
Resistance
10 Ω
C6
Capacitance
0.1uF
R4
Resistance
1kΩ
Q1
R3
Resistance
Resistance
Resistance
5.1kΩ
+5V
U2
+3V3
R7
Resistance
10 Ω
C5
Capacitance
10uF
C10
Capacitance
0.1uF
+3V3
VBUS
+5V
C12
Capacitance
0.1uF
R8
Resistance
10kΩ
+3V3
+3V3
BOOT
R9
Resistance
10kΩ
Q2
+3V3
+3V3
TERM
IC3
U1
IC1
D3

Reviews

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ESP32 RS485 (Modbus) Controller Module 1f3f

ESP32 RS485 (Modbus) Controller Module 1f3f 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

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Pricing & Availability

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Mouser

$9.98

Verical

$4.13–$4.28

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