An oil container that can automatically order new oil via Amazon DRS when the oil level in the container is low. Things used in this project Hardware components Arduino MKR1000 × 1 Ultrasonic Sensor - HC-SR04 (Generic) × 1 Jumper wires (generic) × 1 Software apps and online services Arduino IDE Amazon Web Services AWS SNS Amazon Web Services Amazon Dash Replenishment Service Story Motivation Have you ever c ...