PiDoorbell - Instantaneous Video Notifications with Arduino & RaspberryPi
summary
A doorbell system built from an Arduino Uno R3 plus HC‑SR04 proximity sensor, a Raspberry Pi Model B and a USB webcam detects a visitor within 30 in trigger using five valid reads (crude debouncing), records a 10 second clip (320x240 video + audio via ffmpeg), uploads to Dropbox and notifies via Twilio SMS (US only) or Twitter. Total hardware cost ~US$73–100, target latency <10s, demo uploads and notifications work but lip‑sync, network latency and USB/port limits remain unresolved.
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chapters (29)
- 0:00Introduction
- 0:25Welcome
- 1:32Thank you
- 2:08Outline of the talk
- 3:28What drove this project
- 4:08Project phases
- 6:30Project phase 2
- 7:12Why I chose the solution
- 9:22Hardware used
- 9:49Picture of SMS
- 10:01Dropbox
- 10:13RaspberryPi
- 12:24Software
- 13:30Proximity Sensor
- 13:50Arduino R3
- 14:40DEP Setup
- 15:02Raspberry Pi
- 15:27Front Door
- 16:45Setup
- 17:48Demo
- 23:55Arduino Sketch
- 24:31Trigger Distance
- 26:37Dropbox Uploader
- 26:58Dropbox URL
- 28:14Initial Setup
- 28:32Cost
- 29:11Attributions
- 30:08Issues in future work
- 32:46Questions
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