Using the DIY Sensor Film Kit is easy. First, take the black plastic sensor film. This is the main part that will sense the force. Next, use the heavy aluminum foil as electrodes. Place the foil on the sensor film as per the instructions on the kit's site. Then, use the clear adhesive polyester film to hold everything together. When making your FSR for your microcontroller project, you can cut the sensor film to your desired size. Just make sure to handle the sensor film gently as it's sensitive. As for maintenance, keep the kit in a dry and cool place. Avoid bending or folding the sensor film too much as it might affect its performance. Remember, this small kit doesn't come with alligator clips, but you can buy compatible ones from us if you need them.