Adafruit Long Flex sensor

This sensor can detect flexing or bending in one direction, making it an ideal component for applications that require motion detection. Originally popularized by their use in the Nintendo PowerGlove, these sensors act like resistors that adjust their value according to the degree of flex. When unflexed, they exhibit around 10KΩ resistance, increasing to about 20KΩ when fully bent.

Comparable to Force Sensitive Resistors (FSRs), they offer a straightforward integration process. Using an analog input on a microcontroller with a pullup resistor or a digital input with a 0.1uF capacitor for RC timing enables accurate reading of resistance changes.

Pay particular attention to the sensor's bottom section, where the pins are crimped, as it is highly delicate. Implement strain relief techniques, such as clamping or gluing, to prevent damage to the contacts when in use.