This demonstrator demonstrates force sensing resistance. It is made on adapting a sample (obtainable as a business card) from Sensitronics. Conductive copper plated fabric tape holds the coin cell down and
provides connections to the silver ink on the mylar film. A gull wing led is taped in series with the FSR and coin cell to illustrate current flow when the black flap of piezoresistive polymer ink is pressed down onto the interdigitated conductive array.