Hardware
A small box behind the screen and a camera on its edge
adDevice runs on a Raspberry Pi with a camera module. It plays your playlist on the screen over HDMI and measures attention at the same time.
Mounting
Centred on the top or bottom edge
- Centred on the top edge of the screen, or the bottom edge, facing straight out.
- Optional one-time alignment at install: look at a centre dot from about 1 m. Viewers never calibrate.
- If the camera or screen is moved later, we align it again.
What's in the box
Everything for one screen
Raspberry Pi 4 or 5
Runs the analysis and plays your playlist full screen on the HDMI output.
Camera module
Raspberry Pi Camera Module 3 (standard or wide) or v2 on the camera port. A USB webcam also works.
Mount and cables
Camera bracket for the screen edge, HDMI cable and power supply.
What your site needs
Three things
HDMI screen
Any size, landscape or portrait. Screen size is read from the monitor (or set by hand for projectors and some TVs).
Power
One socket near the screen for the player.
Internet
Wi-Fi or Ethernet for the dashboard and playlist updates. Without it the screen keeps playing its cached playlist.
Specifications
The numbers
- Range for looking and dwell time
- about 4 m
- Range for heat map and areas
- about 1.4 m on a 27" screen
- Camera capture
- 1280 × 960
- Processing budget
- 10+ frames per second
- Aggregation window
- 10 seconds
- Ad formats
- Images, MP4, WebM · 1920 × 1080 or 1080 × 1920
- Playlist updates
- within about 15 seconds
- Low light
- Contrast boost built in · IR + NoIR camera for very dark spots
We bring the hardware to your demo
We bring the device to your site, mount it in about 15 minutes and show you live results on the dashboard.
Book an on-site demo