The Digital Matter iButton Reader has the following wire colours:
| Wire Color | Function |
|---|---|
| Red | iButton Signal Line |
| Black | Ground |
| Green | Green LED (with 1000 ohm resistor) |
| Brown | Red LED (with 1000 ohm resistor) |
| Yellow | LED Negative |
G70 Harness Definition
Connecting an iButton Reader to the G70
- Connect Brown (Driver ID 1/iButton Line) on the G70 to the Red iButton Signal Line
- Connect the Black iButton wire to Ground
Parameters
The G70 must be told to expect an iButton input in parameters, which it is by default under the Driver ID Function tab.
Once these connections are made, the device can now read the iButton data.
Note: Some iButton readers require the Poll iButton parameter to be enabled.