STEM 6th of October - Class of 2026
Research Lead
Ahmed Mohamed & Mustafa Mohamed
Technical Development
Youssef Hany & Ziad Emad
An ultra-sensitive digital electroscope engineered from recycled electronic waste. Solving Egypt's e-waste crisis while revolutionizing school physics laboratories.
Egypt produces 90,000 tonnes of electronic waste annually, yet only a fraction is processed safely. Simultaneously, educational institutions struggle with outdated or broken laboratory equipment.
The Solution: We extract high-value components—Microcontrollers (ATMega328p) and Op-Amps—from discarded printers and motherboards to build precision scientific instruments.
Extracted from old control boards. Utilizing its built-in 10-bit Analog-to-Digital Converter (ADC) to translate analog voltage signals into precise digital readings (0-1023 levels).
Circuit analysis using KCL and KVL ensures minimal charge leakage and accurate potential difference measurement.
Recycled Operational Amplifiers buffer the signal, providing high input impedance to detect faint electric fields.
The prototype achieved a total voltage measurement error of 2.77%, significantly lower than the allowed 5% threshold. It successfully differentiates between positive, negative, and neutral charges.
Data retrieved from Figure 11 (9V Battery Trial) demonstrates the device's ability to accurately track voltage accumulation.
The graph shows a distinct stepped voltage increase from 7.0V to 9.0V over a 120-second interval, confirming high sensitivity to potential differences typical of capacitor charging cycles.
STEM 6th of October - Class of 2026
Ready for mass production using 90% recycled materials found in Egyptian landfills.
Production cost is $5.00 vs Market Standard $150.00.
Seeking partnerships to equip 500+ Egyptian public schools by 2027.
Contact For Partnership