Roomba
From HwB
Serial port available on the iRobot Roomba vacuum cleaner.
[edit] Pinout
7 PIN MINI-DIN FEMALE at the Roomba.
| Pin | Name | Dir | Description |
|---|---|---|---|
| 1 | Vpwer |  | Roomba battery + (unregulated) |
| 2 | Vpwer | | Roomba battery + (unregulated) |
| 3 | RXD |  | Serial input to Roomba |
| 4 | TXD | | Serial output from Roomba |
| 5 | /DD | | Device Detect input (active low) – used to wake up Roomba from sleep |
| 6 | GND |  | Roomba battery ground |
| 7 | GND | | Roomba battery ground |
Note: Direction is Roomba relative Computer.
Note: The RXD, TXD, and Device Detect pins use 0 – 5V logic, so a level shifter such as a MAX232 chip will be needed to communicate with a Roomba from a PC, which uses RS232 levels.