iButton is a computer chip enclosed in a small circular stainless steel 'button' package. It communicates with a host device through a 1-Wire interface, which requires only a single data lead and a ground return. The iButton package is also rugged, durable and resistant to environmental stresses, such as dirt and moisture.
iButton technology was developed by Dallas Semiconductor Corp. in the late 1980s.
Maxim Integrated Products acquired Dallas Semiconductor in 2001 and has continued to manufacture and develop the iButton product line.
iButton has been used in a variety of applications, including inventory management, access control, time and attendance tracking, and temperature monitoring.
RFID technology uses radio waves to identify objects and transmit data.
Near Field Communication (NFC) is a wireless technology that allows two devices to communicate when they are in close proximity.
QR code is a two-dimensional barcode that stores information in a square pattern of black and white dots.
iButton electronic key with unique 64-bit registration number and 8-byte user RAM
Temperature logger iButton with 8K bits of data logging memory and real-time clock
iButton data encryption coprocessor with 4096 bits of Flash memory and a secure hash algorithm for fast data authentication
An iButton is a computer chip enclosed in a small circular stainless steel 'button' package. It communicates with a host device through a 1-Wire interface, which requires only a single data lead and a ground return.
An iButton communicates with a host device through a 1-Wire interface, which requires only a single data lead and a ground return. The iButton package is also rugged, durable and resistant to environmental stresses, such as dirt and moisture.
iButton has been used in a variety of applications, including inventory management, access control, time and attendance tracking, and temperature monitoring.
The alternatives to iButton technology include RFID, NFC, and QR codes.
The advantages of using iButton technology include its ruggedness, durability, resistance to environmental stresses, and ease of communication through 1-Wire interface.