| 英文摘要 |
Traditional mailboxes cannot accept packages and registered letters that it must be collected with a seal or signature. For dual-income families, they must take time off to go to the post office or police station to receive it, which often causes trouble and inconvenience to the public. In addition, it also places additional burden on postmen. Therefore, this work ''Smart Mailbox System with 2D Barcode'' hopes to use community 2D barcodes, Webduino microcontrollers, ESP32-CAM, ultrasonic sensing modules, solenoid valve switches, etc., to solve this inconvenient problem. This work has functions such as ''social QR code'', ''open/close the mailbox door'', ''voice prompt to close the mailbox door'', ''camera photo confirmation'', ''ultrasonic detection of items'' and ''signature document confirmation'', in order to improve the postman's mail delivery rate and reduce inconvenience. |