MAX13487 TTL - RS485 Converter Module V2.0

MAX13487 TTL - RS485 Converter Module V2.0

The MAX13487 TTL - RS485 Converter Module V2.0 is a serial communication standard that provides reliable and long-distance data transmission. It is ideal for multi-point communication systems by supporting multiple devices on a single data bus. RS485 V2 is widely used in industrial applications due to its robustness, immunity to noise, and ability to operate in harsh environments. It is particularly suitable for scenarios where data integrity and communication over long distances are critical.

For the product manual, sample project and code, click here: here

Features

• Chip: MAX13487
• Supply Voltage: 3-5VDC
• Protocol: Serial TTL / RS485
• Maximum Data Rate: 10 Mbps (for short distances), longer
• Device Count: Supports up to 32 devices on a single bus
• Operating Temperature Range: -40 ~ 85°C
• Dimensions: 52x21x11mm

Pinout

• VCC: Power supply input (typically 5V or 3.3V).
• GND: Ground connection.
• A (D+): Non-inverting differential signal line (positive data line).
• B (D-): Inverting differential signal line (negative data line).
• RO: Receiver output (data received from RS485 bus).
• DI: Driver input (to be transmitted to RS485 bus).
data).
• DE: Driver activation (checks whether the module is transmitting or receiving).
• RE: Receiver activation (activates the receiver when active low is pulled).
• Connection;
  • VCC → 5V on Arduino
  • GND → GND on Arduino
  • DI → Pin 3 (TX) on Arduino
  • RO → Pin 2 (RX) on Arduino
  • DE → Pin 4 on Arduino
  • RE → Pin 4 on Arduino (connected to DE for simplicity)