An Arduino-based monitoring system designed to track voltage, current, and wattage in real-time. This project was specifically developed to test audio amplifiers, allowing for precise graphical analysis of voltage drops and current behavior to ensure the power supply is not limiting equipment performance.
Click the image below to watch the detailed explanation of the system, hardware setup, and monitoring goals:
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- Real-time Monitoring: Tracks Voltage (V), Amperage (A), and Wattage (W).
- High Precision ADC: Uses the ADS1115 for accurate voltage readings via a voltage divider.
- Isolated Current Sensing: Employs the ACS712 Hall-effect sensor for safe, isolated current measurement.
- Symmetrical Supply Support: Designed to monitor both positive and negative rails of a symmetrical power supply using operational amplifiers to process negative signals.
- Performance Analysis: Ideal for identifying power bottlenecks during high-demand tests (e.g., audio amplifier stress tests).
- Microcontroller: Arduino (Compatible boards).
- ADC: Texas Instruments ADS1115 (16-bit Analog-to-Digital Converter).
- Current Sensor: Allegro MicroSystems ACS712 (Hall Effect).
- Other: Voltage divider resistors, Op-amps (for symmetrical rail monitoring).
- Firmware: The source code is available in this repository.
- Schematics: Currently not included. If you are interested in the wiring diagram, please open an issue or reach out, and I will research and recreate it for sharing.
Developed for power delivery analysis and electronic equipment testing.