Description

Stamp PWR485 is an RS485 communication expansion board that converts the 3.3V TTL level of the MCU serial port into a differential signal compatible with the RS485 electrical standard. With a compact size of only 20 x 4.6 x 23mm, it can be integrated into various embedded devices for RS485 communication interface expansion. It is suitable for applications such as RS485 sensor data acquisition and Modbus bus node communication.

Features

• SP485EEN-L/TR (RS485 transceiver)
• 2x RS485 interface expansion (parallel), allowing simultaneous connection of two devices
• Red power indicator
• PWR485 interface supports 9-24V input power supply, with internal DC-DC step-down to 5V to power the module and main control device
• Actual test data for baud rate:
  • Stable communication baud rate: 9600bps/115200bps
  • Maximum communication baud rate tested: 128000bps
• Multiple forms:
  • Supports various application forms (SMT, DIP, flying leads)
  • Equipped with high-temperature plastic armor, supports SMT reflow soldering temperature (230°C)

Includes

• 1 x Stamp PWR485
• 1 x HT3.96-4P female socket
• 2 x HY2.0-4P female sockets (blue + white)
• 1 x L-shaped hex key 1.5mm (compatible with M2 screws)

Applications

• RS485 communication
• Modbus device communication

Specifications