Small gadget for show number of likes on FB page in (almost) real time
Components:
- Rasberry Pi, ideally B+ version – it looks more cool
- USB Wi-Fi dongle
- 7-segment display with driver - the bigger the better, we use 7-Segment Serial Display - Blue
- some wires and power supply
Connection
+-----------------------------------------------+
| | +---------------------+
| .~~. .~~. | Tx (blue) -> Rx | |
| '. \ ' ' / .' o------------------o |
| .~ .~~~..~. | | |
| : .~.'~'.~. : | | |
| ~ ( ) ( ) ~ | +5V (red) | 7-segment |
| ( : '~'.~.'~' : ) o------------------o |
| ~ .~ ( ) ~. ~ | | display |
| ( : '~' : ) Raspberry Pi | GND (green) | |
| '~ .~~~. ~' o------------------o |
| '~' | | |
| | +---------------------+
+-----------------------------------------------+
Application is writen in node.js.