# Arduino GIGA R1 WiFi powers dual-layer solar tracking prototype

> **Key takeaway:** Researchers used the Arduino GIGA R1 WiFi's dual-core processing and high I/O density to manage a complex, multi-layer photovoltaic tracking system.

**Published:** 2026-11-06T13:15:45+00:00 
**Source:** Arduino Official Blog 
**Category:** open-hardware 
**Canonical URL:** https://fosswire.org/news/arduino-giga-r1-wifi-powers-dual-layer-solar-tracking-protot.html 

## Summary
Researchers from the 'Mediterranea' University of Reggio Calabria and the startup A.M.P.S. have successfully field-tested a dynamic double-layer photovoltaic prototype. The system uses vertically stacked bifacial solar modules to increase energy density per square meter of land, addressing the spatial constraints of traditional solar farms.

The project utilized the Arduino GIGA R1 WiFi as the central embedded controller to manage the complex synchronization required for the installation. By implementing independent solar tracking for both layers, the system actively manages mutual shading to maximize sunlight harvesting across all active surfaces.

## Technical implementation with GIGA R1 WiFi
- **Motion Control:** The GIGA R1 WiFi coordinates twelve Nema23 stepper motors through DM542T drivers to independently adjust the rotation angles of twelve bifacial mini-modules.
- **Sensor Integration:** The system manages real-time energy performance tracking via twelve INA260 current sensors and twelve limit switches.
- **Processing and Connectivity:** The board's dual-core microcontroller and integrated Wi-Fi enable synchronized current sweeps and direct remote data logging to a server.
- **Performance Gains:** Field tests showed a short-circuit current increase of approximately 42% compared to monofacial single-layer setups and 27% compared to bifacial single-layer setups.

## Why it matters
This application demonstrates how high-performance, accessible embedded hardware can be used to solve complex industrial and environmental engineering challenges. It highlights the utility of the GIGA R1 WiFi's expanded I/O and processing capabilities for researchers moving from simple prototyping to complex, multi-actuator field deployments.