Industrial 8-Channel RP2350 Relay Module, Based on RP2350 Dual-core & Dual-architecture Microcontroller, Supports digital input, RS485, and Ethernet port interfaces, With Multiple Isolation Protection Circuits
Industrial 8-Ch RP2350 Relay Module
Based on RP2350, Supports digital input, RS485, and Ethernet port interfaces
Built-in protection circuits such as power isolation and optocoupler isolation, Safe & Stable & Reliable
Version options
RP2350-ETH-8DI-8RO
Common network port + isolated RS485
8-ch digital inputs + 8-ch relays
RP2350-POE-ETH-8DI-8RO
PoE network port + isolated RS485
8-ch digital inputs + 8-ch relays
Features
- RP2350B microcontroller chip designed by Raspberry Pi in the United Kingdom
- Adopts unique dual-core and dual-architecture design: dual ARM Cortex-M33 or dual Hazard3 RISC-V processors support, flexible clock running up to 150 MHz
- 520KB of SRAM, and 16MB of onboard Flash memory
- Type-C port, easier to use
- High quality relay, contact rating: ≤10A 250V AC / 30V DC
- Supports passive and active digital input, with bi-directional optocoupler isolation. The relay supports digital input linkage control
- Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial expansion modules or sensors
- Onboard pin header, allowing access to other devices
- Onboard power supply screw terminal, supports 7~36V wide voltage input, suitable for industrial applications
- Onboard RTC chip, supports scheduled tasks
- Onboard W5500 Ethernet chip for extending 10/100Mbps network port through SPI interface
- Optional for PoE network port function, with built-in PoE module for PoE capability (compliant with IEEE 802.3af standard)
- Onboard optocoupler isolation to prevent interference from external high-voltage circuit connected to the relay
- Onboard digital isolation to prevent interference from external signal
- Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply required for the isolated terminal
- Onboard TF card slot for external TF card storage of images and files
- Built in buzzer, RGB LED, power supply and RS485 TX/RX indicators for monitoring the operating status of the devices
- Rail-mounted ABS case, easy to install, safe to use
- USB 1.1 with host and sub device support
- Low-power sleep and dormant modes
- Drag-and-drop programming using mass storage over USB
- Adapting 15 × multi-function GPIO pins
- 2 × SPI, 2 × I2C, 2 × UART, 8 × 12-bit ADC, 12 × controllable PWM channels
- Accurate clock and timer on-chip
- Temperature sensor
- Accelerated floating-point libraries on-chip
- 12 × Programmable I/O (PIO) state machines for custom peripheral support
Specifications
| Microcontroller |
RP2350B |
| USB |
Connector |
USB Type-C |
| Power supply |
5V |
| Functions |
Power supply, USB communication, firmware downloading, etc. |
| isolated comm interface |
Interface |
RS485 |
| Connector |
Screw terminal |
| Direction control |
Hardware automatic control |
| Protection |
TVS diode, surge protection & ESD protection |
| Resistor |
Onboard reserved 120R matching resistor, NC by default, enabled via jumper |
| Ethernet interface |
PoE Ethernet port, supports IEEE 802.3af standard (for PoE port version only) |
| Digital input |
Input channels |
8 |
| Input voltage |
5V~36V |
| Input type |
Passive input / active input (NPN or PNP type) |
| Isolation type |
Bi-directional optocoupler isolation |
| Relay |
Contact rating |
≤10A 250V AC / 30V DC |
| Relay channels |
8 |
| Contact form |
1NO 1NC |
| Isolation |
Optocoupler isolation |
| LED indicators |
RGB |
RGB colorful LED, supports programmable control of display color |
| PWR |
Red power indicator, lights up when there is USB connection and voltage is detected |
| TXD |
Green TX indicator, lights up when the RS485 port sends data |
| RXD |
Blue RX indicator, lights up when the device port sends data back |
| power supply Screw terminal |
Voltage range |
7~36V |
| Appearance |
Enclosure |
Rail-mount ABS protective case |
| Dimensions |
175 × 90 × 40 (mm) |
dual-core, dual-architecture
The unique dual-core, dual-architecture capability of RP2350B allows users to choose between a pair of industry-standard Arm Cortex-M33 cores, and a pair of open-hardware Hazard3 cores, giving developers a chance to experiment with the RISC-V architecture in a stable, well-supported environment
Onboard multiple isolation protection circuits
Multiple protections, more safe and reliable
supports RS485 and Ethernet interfaces remote control
Onboard 8-ch relays and 8-ch digital inputs, Contact rating of the onboard relay up to 10A 250V AC / 30V DC, Directly controlling 220VAC home appliances, or devices below 30V DC
Digital input
Supports passive (dry contact) and active (wet contact) digital input, with bi-directional optocoupler isolation
Application scenarios
Optional for PoE function
built-in PoE module, providing both network connection and power supply in one cable
* the PoE function is only available on RP2350-POE-ETH-8DI-8RO version, and the switch shown in the picture is NOT included.
Application Examples
Provides Multiple Networking Demos,
enabling data visualization services via lightweight MQTT/HTTP protocols
Supports C/C++, MicroPython, Arduino IDE
What's On Board
- RP2350B
Dual-core and dual-architecture design, up to 150 MHz operating frequency
- PoE header
supports connecting to PoE module for PoE capability (for PoE port version only)
- RESET button
- Optocoupler isolation
prevents interference from external high-voltage circuit connected to the relay
- 8-channel quality relays
contact rating per channel: ≤ 10A 250V AC or ≤ 10A 30V DC
- Relay screw terminals
for connecting external devices
- Power supply isolation
provides stable isolated voltage, needs no extra power supply for the isolated terminal
- Digital isolation
prevents interference from external signal
- RS485 matching resistor jumper
onboard reserved 120R matching resistor, enabled via jumper
- RS485 communication interface
for connecting to external RS485 devices
- Power supply screw terminal
supports DC 7~36V wide voltage input
- Power IC
- Digital input screw terminals
- Bi-directional optocoupler isolation
- RTC battery holder
1220 size (12mm diameter*2mm thickness), supports only rechargeable 3V~3.3V Batt.
- Buzzer
- Pin header
for connecting other devices
- LED indicators
PWR: power indicator
RXD: RS485 RX indicator
TXD: RS485 TX indicator
- BOOT button
- USB Type-C port
for programming, USB 1.1 with device and host support
- WS2812
cool RGB LED
- Ethernet port
- Onboard TVS (Transient Voltage Suppressor)
can effectively suppress surge voltage and transient spike voltage in the circuit
- RS485 conversion chip
- MP1605GTF-Z
DC-DC power module
- PCF85063ATL
RTC chip, can achieve some scheduled tasks
- W5500
for extending 10/100Mbps network port through SPI interface
- TF card slot
supports external TF card storage for images and files
pin definition
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