WR-01 Wind and Rain Sensor Set with Modbus RTU, CSV, and JSON Output

The WR-01 pairs economical, reliable, field-proven wind and rain sensors with a simple yet powerful interface. This set includes a wind vane, cup type anemometer, tipping bucket rain gauge, 2-piece mast, mounting hardware, and interface electronics. The interface board comes in a rugged, weatherproof enclosure and provides two serial interfaces, a flexible alarm output, and a 0-3.3v analog output. It allows simple interfacing of weather sensors for PLCs, PCs, single-board computers including Raspberry Pi, and embedded devices including Arduino. Serial port 1 provides a 2-wire RS-485 interface, suitable for long cable runs in electrically noisy environments. Serial port 2 provides a bidirectional 3.3v TTL serial interface for easy interfacing with embedded devices over short cable runs, plus a secondary output that mirrors the TTL TX signal with inverted polarity and a wider voltage swing, making it compatible with RS-232 ports and allowing longer cable runs. Both ports can be configured to use the Modbus RTU protocol or to automatically output readings in a text CSV or JSON format. No special drivers or libraries are required - reading and parsing data can be accomplished with a single line of Python code. Examples for Linux and Arduino are provided in the github repository at github.com/argentdata/wr-01-weather-interface. The WR-01’s open drain alarm output can be configured to activate when a specified set of conditions are met, without requiring any external controller. This can be used, for example, to disable an irrigation system when rainfall is detected. Multiple parameters can be evaluated using AND and OR operators. A single 0 to 3.3v analog output can be configured to reflect any measured parameter across any range of values.

• VERSATILE INTERFACE: The WR-01 pairs economical, reliable, field-proven wind and rain sensors with a simple yet powerful interface for PLCs, PCs, single-board computers, and embedded devices.
• WEATHERPROOF DESIGN: Interface board comes in a rugged, weatherproof enclosure and supports long cable runs.
• DUAL PORT CONNECTIVITY: Features RS-485 interface for industrial-grade communications and a 3.3v TTL serial interface for easy connection to embedded devices, with RS-232 compatible secondary output.
• MULTIPLE DATA FORMATS: Supports Modbus RTU for configuration and sensor readings, plus plain text output in CSV, JSON, or Peet Bros Ultimeter 2000 format at specified intervals.
• CONFIGURABLE OUTPUTS: Includes programmable alarm output that activates when specified conditions are met and a 0-3.3v analog output that can be configured to reflect any measured parameter.