TTL to RS-485 Transceiver Module
3.3V or 5V DC · Pin header 2.54mm
SKU: VK-MOD-RS485
Compact TTL ↔ RS-485 bidirectional transceiver module. Converts UART signals to differential RS-485 for long-distance industrial communication.
Quick Specs
| Supply | 3.3V or 5V DC |
| Connector | Pin header 2.54mm |
| Conversion | TTL (UART) ↔ RS-485 half-duplex |
| Dimensions | 44 × 14 × 10mm |
| Protection | ESD on A/B lines |
| Logic Levels | 3.3V and 5V compatible |
| Max Distance | 1200m |
| Max Data Rate | 2.5 Mbps |
| Direction Control | Automatic |
Product Description
Bidirectional TTL to RS-485 transceiver module based on a half-duplex differential bus driver. Converts 3.3V/5V UART (TX/RX) signals to RS-485 differential pairs (A/B) for reliable communication over distances up to 1200 meters.
Automatic direction control — no need for manual DE/RE pin toggling. Simply connect TX, RX, VCC, and GND from your microcontroller.
Ideal for connecting microcontrollers (ESP32, STM32, Arduino) to Modbus RTU networks, industrial sensors, PLCs, and other RS-485 devices.
Features:
• Auto direction control (no DE/RE management)
• 3.3V and 5V compatible
• Up to 1200m communication distance
• Up to 2.5 Mbps data rate
• ESD protection on bus lines