Dual-Axis Solar Tracking & Energy Management System
A dual-axis (Yaw & Pitch) photovoltaic tracking system equipped with high-side INA219 I2C current/voltage telemetry, DHT22 climate sensors, and closed-loop battery charging.
Dual-axis solar tracking mechanical frame
Overview
This system dynamically tracks the sun's trajectory across two degrees of freedom using a cross-axis quadrant of 4 LDR photoresistors and MG996R high-torque metal-gear servos. Integrated INA219 high-side instrumentation logs open-circuit voltage, load current, and instantaneous power, while a DHT22 logs ambient temperature and humidity.
Highlights
- Dual-Axis (Horizontal Yaw & Vertical Pitch) quadrant LDR tracking
- High-precision INA219 I2C bus current & voltage power logging
- DHT22 ambient temperature and relative humidity microclimate telemetry
- LM2596 buck regulation with common system ground protection
The Challenge
Preventing micro-controller brownouts under heavy inductive servo loads required dedicated high-current rails and common signal reference grounding.
The Outcome
Demonstrated measurable photovoltaic power harvest gains over static panels while providing real-time telemetry logging.
Project Media & Build Gallery
[3 PHOTOS]Dual-axis solar tracking mechanical frame
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