The METEO module by L&R Engineering is a peripheral board that operates as a meteorological data acquisition unit (Wind, Atmospheric Pressure and Temperature) in a format compatible with DIN rail enclosures (model DINR416). It is based on a PSoC1 microcontroller (Programmable System-on-Chip) by Infineon [Ref1], which internally features configurable analog and digital modules, providing great flexibility to adapt to changing requirements and designs, while also resulting in a very robust unit, proven in some cases through more than a decade of field operation [Ref2]. The firmware enables very accurate frequency readings within the typical ranges of anemometric sensors, with hardware that allows signal conditioning for typical models such as NRG or Thies. It additionally features three analog inputs with 12-bit ADC for wind direction, temperature, and barometric pressure measurement. Data output is transmitted every 1 second as a serial frame (generally converted to RS485, @38400 baud, for example via the RS485-v2 module [Ref3]) with header, termination and checksum for validation by the receiving CPU. The boards, assembled DIN modules or the complete assembly including RS485 comm module, with or without a weatherproof metal enclosure, can be purchased through L&R. [Ref4,5]

Technical References:

[Ref1] PSoC-1 CY29466 Microcontroller https://www.infineon.com/cms/en/product/microcontroller/legacy-microcontroller/legacy-8-bit-16-bit-microcontroller/psoc-1/cy8c29x66/

[Ref2] JEPT 05-2025 (Open Access) “Test Site for Small Wind Turbines – Technical and Logistical Issues of a Decade-Long Project” https://www.lidsen.com/journals/jept/jept-07-02-009

[Ref3] RS485-v2 Module by L&R Engineering https://www.lyringenieria.com.ar/language/en/productos/rs485-brd-rs-485-rs-232-ttl-board-module-v2/

[Ref4] METEO Module by L&R Eng. https://github.com/LyRIng/METEO [Ref5] METEO Main Features (PDF) https://www.lyringenieria.com.ar/wp-content/uploads/2026/04/METEO-v02-2026-EN-R1.pdf