DIYables RS485 to TTL Module for Arduino, ESP32, ESP8266, Raspberry Pi, 2 Pieces…
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Quick Overview
This DIYables RS485 to TTL module enables ultra-long-distance serial communication with industrial-grade reliability for Arduino, ESP32, and ESP8266 projects. The module converts RS485 differential signals to TTL voltage levels and vice versa, supporting multi-device communication with up to 128 devices on a single bus.
The module features 15KV ESD protection (positive and negative), slew rate driver chip for minimizing EMI and cable reflection distortion, and supports data rates up to 500 Kbps. The industrial-grade components ensure reliable operation in harsh environments with excellent noise immunity.
Ideal for industrial automation, Modbus communication, building automation, sensor networks, PLC systems, and any application requiring reliable long-distance multi-device serial communication. The RS485 differential signaling provides superior noise immunity compared to standard serial communication.
Key Features
- Industrial-Grade Chip — New original chip for reliability and longevity
- Long-Distance Communication — Ultra-long-distance data transmission capability
- Multi-Device Support — Up to 128 devices on a single RS485 bus
- 15KV ESD Protection — Positive and negative protection against electrostatic discharge
- Slew Rate Driver — Optimizes signal integrity, reduces EMI and cable reflections
- High-Speed Communication — Error-free data transmission up to 500 Kbps
- Bidirectional Conversion — RS485 to TTL and TTL to RS485
- Differential Signaling — Excellent noise immunity for industrial environments
- Overcurrent Protection — Protects module and connected devices
- Tutorial Support — Comprehensive guides for Arduino, ESP32, ESP8266
- Modbus Compatible — Supports Modbus RTU protocol
- Versatile Applications — Industrial automation, building automation, sensor networks, PLC systems
SPECIFICATION
| Specification | Value |
|---|---|
| Product Type | RS485 to TTL Converter Module |
| Chip Type | Industrial-grade slew rate driver |
| Communication Standard | RS485 differential signaling |
| Max Devices on Bus | Up to 128 devices |
| Max Data Rate | 500 Kbps (error-free) |
| ESD Protection | ±15KV (positive and negative) |
| EMI Reduction | Slew rate driver minimizes interference |
| Signal Integrity | Reduces cable reflection distortion |
| TTL Interface | Standard UART (RX, TX, DE/RE) |
| Operating Voltage | 3.3V to 5V (typical) |
| Quantity | 2 pieces |
| Protocol Support | Modbus RTU compatible |
| Compatibility | Arduino, ESP32, ESP8266, any UART-capable microcontroller |
| Applications | Industrial automation, Modbus communication, building automation, sensor networks, PLC systems |
Tutorials
COMPATIBLE HARDWARE
- Arduino boards (UNO, Mega, Nano, etc.) — Hardware Serial or SoftwareSerial
- Arduino Uno R4 WiFi/Minima — Serial communication pins
- ESP32 development boards — UART pins (HardwareSerial)
- ESP8266 boards (NodeMCU, Wemos D1, etc.) — Serial or SoftwareSerial
- Arduino Nano ESP32 — Hardware Serial pins
- Any microcontroller with UART — TTL serial interface
- Industrial automation systems — Multi-device sensor/control networks
- Modbus RTU devices — Modbus protocol communication
- Building automation — HVAC, lighting, access control systems
- PLC systems — Programmable logic controller interfaces
- Sensor networks — Distributed sensor communication
- Data acquisition systems — Industrial data logging
- Motor control systems — Multi-motor coordination
