ESP32 Modbus RTU four-way relay module RS485 development board MODBUS protocol four-way optocoupler
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$59.85
Sale price
$59.85
Regular price
$0.00
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ESP32 Modbus RTU four-way relay module RS485 development board MODBUS protocol four-way optocoupler
$59.85
Sale price
$59.85
Regular price
$0.00
Description
SPECIFICATIONS
Application: Computer
Brand Name: HZWDONE
Condition: New
High-concerned chemical: none
Origin: Mainland China
Supply Voltage: 7-24v
Type: Relay
is_customized: Yes
This product is only used for development learning and DIY accessories. The product involves certain technical knowledge. Please carefully review the product function introduction before making a purchase.
Functional Features
ESP32 RS485 Modbus 4-channel relay
1.ESP32， Equipped with WIFI and Bluetooth
2. Input optocoupler isolation, output optocoupler isolation
3. Built in CH340 serial port chip
4.7~24VDC power supply+TYPE-C power supply
5. Support Modbus
6. Built in RS485 interface
Board size
Supports 7~24VDC power supply, TYPE-C power supply with RS485, USART, WIFI, Bluetooth, and Modbus support
Equipped with input/output optocoupler isolation
*TYPE-C interface: power supply and burning * EN reset button: press reset button
*BOOT button: Press and hold the reset button once to enter download mode * 4-channel optocoupler input: can control the relay
Free Shipping Over $199
- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
30-Day Return Policy
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
Why Choose Us?
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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