A
Anonymous
Apr 14, 2026
Rating: 5/5
Perfect for IoT Gateway
LoRa integration makes this versatile for remote sites.
Description
RS232/RS485 Serial Control for 4 Outputs and 4 Digital Input Collections
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Communication Protocols | RS485, Serial, Wi-Fi, LoRa |
| Relay Channels | 4 Independent Outputs |
| Input Voltage Range | 12V DC to 24V DC |
| Relay Contact Rating | 10A at 250VAC |
| Signal Isolation | Optocoupler Isolated I/O |
| Operating Temperature | -20°C to 70°C |
| Product Dimensions | 100mm x 80mm x 25mm |
| Net Weight | 150g |
| Mounting Style | DIN Rail or Screw Fixing |
| Firmware Upgrade | Supported via Serial Port |
5 reviews
A
Anonymous
Apr 03, 2026
Rating: 3/5
Wi-Fi range limited
RS485 is great, but Wi-Fi antenna could be stronger.
A
Anonymous
Mar 24, 2026
Rating: 4/5
Good but complex
Works well with Home Assistant but setup took some time.
A
Anonymous
Feb 26, 2026
Rating: 5/5
Reliable RS485
No communication errors in a noisy electrical environment.
A
Anonymous
Feb 23, 2026
Rating: 5/5
Robust Control Module
Used this for a factory automation project. The isolation protects our main controller well.
5 FAQ
Q: Is 5V logic supported?
A: No, the input voltage must be between 12V and 24V DC.
Q: Does it support Modbus RTU?
A: Yes, Modbus RTU is supported over the RS485 interface.
Q: What is the maximum load per relay?
A: Each relay can handle up to 10A resistive load.
Q: Can I control this with Python?
A: Yes, libraries and examples are provided in the documentation.
Q: Does it come with a case?
A: Yes, it includes an industrial-grade enclosure.
![[Youxin Electronics] Soil Moisture Meter Detection Module, Soil Moisture Sensor for Intelligent Robot Cars](https://www.gosteppe.com/cache/medium/product/3877/legacy-main-eca7a3fa750966e5dca86bbf.webp)
![[Puzhong Brand Store] 51 Microcontroller Learning Board Development Board Jiangxie Tech STC89C52 DIY Kit](https://www.gosteppe.com/cache/medium/product/1885/legacy-main-0474e8371f211cc54ab452b5.webp)
![[Corrosion-Resistant] DFRobot Capacitive Soil Moisture Sensor Module Dry/Wet Detection](https://www.gosteppe.com/cache/medium/product/3259/legacy-main-2f0d3454b36b32391d263648.webp)
![[Buy 2 Get 10% Off] Lanzhai Purple Iris Painted Felt Mat – Thickened, Moisture-Resistant, Non-Pilling for Calligraphy & Painting](https://www.gosteppe.com/cache/small/product/269581/legacy-main-603d11ff0e43b7741fb1dc38.webp)
