Difference between revisions of "1-Wire iButton Reader"
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Latest revision as of 10:52, 25 August 2022
Main Page > Accessories > 1-Wire iButton ReaderIntroduction to the product
Description:
One of the implemented features for fleet management devices is 1-Wire data protocol, which can be used for iButton reading. It is the most straight-forward way to implement driver authorization in your vehicles.
1-Wire iButton readers are great in these use cases:
- Immobilizer - prevent anyone from starting the vehicle without scanning an iButton first.
- Authorized driving - keep track of who is driving your vehicle according to the iButton ID they use to authenticate themselves.
- AutoGeofencing – gives ability to know when car leaves customized areas without iButton authorization.
Product Specification
| NAME | DESCRIPTION |
|---|---|
| Interface | 1-Wire Interface |
| Wiring | White wire = 1-wire signal, Brown wire = Ground |
| Case material | Plastic (polyacetal) |
| Ring material | Ferrite steel with chrome plating |
| Signal joint material | Brass with chrome plating |
| Fastening method | M12 screw |
| Wire dimensions 2 wires | Ø 0,25 mm2 |
| Cable length | 40 cm |
| Operating temperature | -40 ºC to +85 ºC |
| Operating humidity | Up to 70% |
| Supported by | FMB110, FMB120, FMB122, FMB125, FMU125, FMM125, FMC125, FMB130, FMU130, FMC130, FMM130, FMB140, FMB202, FMB204, FMB640, FMC640, FMM640 |
Installation
To connect the 1-wire iButton reader, simply connect the 1-Wire Signal wire from the reader to the 1-Wire Data pin on the device, and connect the ground wire to the same grounding used for the device.
| PIN NUMBER | PIN NAME |
DESCRIPTION |
|---|---|---|
| 1 | 1-wire Data (Dallas Data) | Sends iButton ID |
| 2 | GND (-) | Ground. |
Device configuration
The reader works as soon as it is connected, but the iButton isn't used anywhere other than displayed in the iButton I/O element. In order to use it for the Immobilizer scenario, the device must have the scenario enabled. Then, iButton check can be enabled to only accept iButtons specified in the iButton list under the 1-Wire tab. 
