Design and implementation of robust low cost and low power prototype for generic counting system

Alow-cost and low-power generic counting system prototype is proposed and designed in this paper for counting the occurrences of certain events. A sensor strip was developed on a rough acrylic sheet by placing a very thin film (50ßm) of PTFE on aluminium with a gap between them. This strip requires no input power and is efficient for long term use due to its robustness. On applying a lateral force on PTFE, voltage spikes were generated, which acted as input data for Arduino Uno controller. After successful reduction of noise, a legitimate input pulse was registered and counter value was incremented on a 7 segment display. System was put under test in real-time environment and results were verified in accordance with the actual data.