Quantity   Component name
1 × Melissa & Doug toy mailbox https://www.melissaanddoug.com/products/my-own-mailbox-classic-toy
1 × Unexpected Maker FeatherS3 An ESP-32-S3 dev board: https://esp32s3.com/feathers3.html
1 × MGS90 Hobby Servo (Generic)
1 × Adafruit MiniBoost 5V For powering the servo from LiPo: https://www.adafruit.com/product/4654
1 × 400mah LiPo https://www.adafruit.com/product/4654
1 × 74AHC1G125 Buffer For driving servo at 5V from 3.3V pins
1 × Homemade Presense Switch A spring, dangling inside a larger spring, with a wire attached to each : )