iButton

iButton

A highly durable chip with a unique address from Maxim Integrated Products (www.maximintegrated.com) that is used for many purposes, such as building access, personal information, asset management, guard tours and tracking. Housed in a 16mm aluminum or stainless steel can that looks like a watch battery, iButtons are small enough to be attached to a key fob or finger ring.

Data are transferred in and out of the iButton when the can makes momentary contact with a reader/writer connected to a computer via a simple Maxim interface (see 1-Wire).


iButton and Reader
Looking like a watch battery, this iButton is resting on top of the reader. iButtons are rugged identification devices, and their top and side are the two contacts.







A Unique Serial Number
Every iButton has its own serial number laser etched into the case.
Mentioned in ?
References in periodicals archive ?
The HS 460 series is equipped with an iButton that allows for easy programming, emergency opening, and transaction read-out by hotel staff, whereas the HS 470 series comes with an audit function for read-out of opening and closing operations.
In addition, a Thermochron iButton (Dallas Semiconductor, TX), set to read at 1-min intervals, is placed in each nest cup to remotely record temperature, incubation/brooding behavior, fledging, and predation events.
Seven sensors were installed in the slab corner: an iButton and a digital humidity sensor at the top, middle, and bottom of the slab and one wireless RFID sensor in the middle.
We recorded mean and maximum temperatures of nests, which might vary with microhabitats, by inserting data loggers (Thermochron iButton Temperature Sensors, Maxim Integrated Products, Sunnyvale, California) placed directly beneath the lining of nesting materials of 30 nests (including four nests of northern mockingbirds used by lark sparrows).
Sea temperature was logged at each study site at 30-min intervals in the top and bottom layers of 2 cages using Thermochron iButton recorders in waterproof plastic bottles.
Peripheral devices such as MSR, fingerprint, iButton, IC card reader, RFID and Wi-Fi are upgradable.
The electronic version (FE210F) is computer-managed and operated with an iButton fob, allowing the owner or manager to control access times for specific locks.
The device includes programmable logic, controllers, fixed-time controls, Modbus protocol, iBUTTON identification and HMI (screen/keyboard) when needed.
It features an iButton[TM] reader at its base for reading iButton data tags.
Each patient and caregiver is assigned an iButton, which is scanned during each interaction and records both parties' presence.
The iButton becomes a secondary medical record, containing diagnosis, task reminders, medications, treatments administered, physician orders, medical alerts and vital, sign for the last four readings (all updated with each contact by a caregiver).