What is iButton?
Abstract: This application note mainly introduces iButton®. Discussed the basic knowledge of iButton: definition, composition and some applications. This article explains how the system communicates with iButtons through its 1-Wire® interface. It also discusses the type of iButton, the ruggedness of iButton, the guarantee of a unique 64-bit serial number, and the available iButton accessories.
introduction
iButton is a computer chip packaged in a 16mm thick stainless steel case. Due to its unique rugged housing, the latest information can be carried anywhere with people or target objects. In fact, the steel iButton shell is strong enough to withstand all kinds of harsh environments indoors or outdoors, so that iButton can be installed almost anywhere. The iButton is very small and light, and can be attached to key chains, ring rings, watches or other personal items. It is very suitable for controlling access rights such as buildings and computers, asset management and various data records in daily life.
iButton composition shell and metal buckle
iButton uses its stainless steel 'housing' as an electronic communication interface. Each housing has a data contact, called the "box lid", and a ground contact, called the "box bottom." These contacts are connected to the internal silicon chip. The lid is the top of the case; the bottom of the case is composed of the edges and bottom of the case, including a flange that facilitates the attachment of the button to any other object. The two contacts are separated by a polypropylene retaining ring.
1-Wire interface
You can communicate with iButton through the 1-Wire® protocol by simply touching the iButton with the above two interfaces. The 1-Wire interface has two communication rates: 16 kbps in standard mode and 142 kbps in overdrive mode. For more detailed information, please refer to the application note: Reading and WriTIng iButton via Serial Interfaces.
Address The chip inside each iButton housing has a unique address that is engraved by the laser and cannot be changed. This address (such as 2700000095C33108) can be used as the serial number or logo of each iButton.
iButton version Currently, the iButton product line contains more than 20 products, adding various functions to the basic buttons. iButton provides the following types:
Click on an iButton type below to view all products of that type. Address only (English only) Memory (English only) Real-time clock (English only) Security (English only) Data logger (English only) How to read and write iButton information?
The information transmission between the iButton and the PC is achieved through short contact, and its transmission speed is up to 142kbps. Simply touch the blue dot receiver or other iButton detector connected to the PC with the iButton. Connect the blue dot receiver to the 1-Wire adapter on the free port of the PC with a cable. Existing 1-Wire adapters support USB ports, serial ports, and parallel ports. The blue dot receiver and 1-Wire adapter are inexpensive. For product prices and availability, please contact Maxim Direct.
iButton is also the ultimate information carrier for AutoID and various portable applications. All the latest PDAs and PDAs can communicate with iButton. For a complete list of portable devices that can communicate with iButton, please visit iButton Solution Search (English only).
How robust is iButton?
The silicon wafer inside the iButton is protected to the maximum by the durable material-stainless steel. You can throw it on the ground, step on it, or scratch it at will. iButton has been tested for wear and has a 10-year service life.
What can I do with iButton?
iButton is very suitable for any application that needs to carry information with you or with things. The iButton can be attached to a key chain, watch or ring, and can authorize its owner to enter the building and use computers, instruments and transportation equipment. The iButton can be attached to a work tote to measure the entire process such as manufacturing, product delivery, and maintenance work to improve work efficiency. Some iButton versions can store electronic cash in small transactions, such as: transportation systems, parking fees and vending machines. iButton can also be used as an electronic asset tag to save the information needed to track valuable equipment assets. Click here to get some iButton applications all over the world (English only).
What do I need to do to implement an iButton application? Any iButton application is composed of the following four basic parts. iButton (English only) Host system: it can be a PC, laptop, PDA, or embedded system. The read / write device can write information to or read information from the button. It can be the blue dot mentioned above (English only), a pen detector (English only) or a handheld device (English only). The software layer that connects the iButton and the computer and generates the required information in the required format. Multiple software development tools (SDK) can be downloaded for free from the website. For a list of SDKs and download links, see this page (English only). We also provide 1-Wire drivers (English only) for Microsoft platforms: OneWireViewer (English only), and demo programs that can read / write / use any iButton. How much does it cost to design a simple iButton application? Plus programming time, it is less than $ 50 (US $). The unit price of iButton is between $ 2 and $ 95; if there is a large order, there is a discount. The blue dot receiver and 1-Wire adapter form a simple read / write device, which costs between $ 38 and $ 43. The OneWireViewer demo software and SDK can be downloaded for free from our website. These are all the components needed to start the design. You can visit our Chinese website: get detailed information of all products, contact our agents in China to get the exact quotation.
What advantages does iButton have compared to other technologies? When developing iButton solutions, you may think of many complementary technologies. It may be a bar code, RFID tag, magnetic stripe, proximity card and smart card. Unlike barcode and magnetic stripe cards, most iButtons can not only read but also write. In addition, iButton's communication rate and product usage range far exceed the simple memory commonly used in RFID. In terms of ruggedness and durability, thin plastic smart cards cannot compare with the high strength of the iButton in stainless steel.
If you do n’t want to develop your own application, can you provide a complete solution? We have established partnerships with authorized solution developers (abbreviated as ASD) with many companies that develop iButton supervision systems that can be used to include access control, timing and attendance records, payroll, card fleet maintenance records, equipment production control , Fee collection, etc. ASD can also develop customized iButton applications-you only need to negotiate and discuss with the developer. You can search iButton Solutions Search (English only) to find solutions provided by our partners around the world.
introduction
iButton is a computer chip packaged in a 16mm thick stainless steel case. Due to its unique rugged housing, the latest information can be carried anywhere with people or target objects. In fact, the steel iButton shell is strong enough to withstand all kinds of harsh environments indoors or outdoors, so that iButton can be installed almost anywhere. The iButton is very small and light, and can be attached to key chains, ring rings, watches or other personal items. It is very suitable for controlling access rights such as buildings and computers, asset management and various data records in daily life. iButton composition shell and metal buckle
iButton uses its stainless steel 'housing' as an electronic communication interface. Each housing has a data contact, called the "box lid", and a ground contact, called the "box bottom." These contacts are connected to the internal silicon chip. The lid is the top of the case; the bottom of the case is composed of the edges and bottom of the case, including a flange that facilitates the attachment of the button to any other object. The two contacts are separated by a polypropylene retaining ring. 1-Wire interface
You can communicate with iButton through the 1-Wire® protocol by simply touching the iButton with the above two interfaces. The 1-Wire interface has two communication rates: 16 kbps in standard mode and 142 kbps in overdrive mode. For more detailed information, please refer to the application note: Reading and WriTIng iButton via Serial Interfaces. Address The chip inside each iButton housing has a unique address that is engraved by the laser and cannot be changed. This address (such as 2700000095C33108) can be used as the serial number or logo of each iButton.
iButton version Currently, the iButton product line contains more than 20 products, adding various functions to the basic buttons. iButton provides the following types:
Click on an iButton type below to view all products of that type. Address only (English only) Memory (English only) Real-time clock (English only) Security (English only) Data logger (English only) How to read and write iButton information?
The information transmission between the iButton and the PC is achieved through short contact, and its transmission speed is up to 142kbps. Simply touch the blue dot receiver or other iButton detector connected to the PC with the iButton. Connect the blue dot receiver to the 1-Wire adapter on the free port of the PC with a cable. Existing 1-Wire adapters support USB ports, serial ports, and parallel ports. The blue dot receiver and 1-Wire adapter are inexpensive. For product prices and availability, please contact Maxim Direct. iButton is also the ultimate information carrier for AutoID and various portable applications. All the latest PDAs and PDAs can communicate with iButton. For a complete list of portable devices that can communicate with iButton, please visit iButton Solution Search (English only).
How robust is iButton?
The silicon wafer inside the iButton is protected to the maximum by the durable material-stainless steel. You can throw it on the ground, step on it, or scratch it at will. iButton has been tested for wear and has a 10-year service life. What can I do with iButton?
iButton is very suitable for any application that needs to carry information with you or with things. The iButton can be attached to a key chain, watch or ring, and can authorize its owner to enter the building and use computers, instruments and transportation equipment. The iButton can be attached to a work tote to measure the entire process such as manufacturing, product delivery, and maintenance work to improve work efficiency. Some iButton versions can store electronic cash in small transactions, such as: transportation systems, parking fees and vending machines. iButton can also be used as an electronic asset tag to save the information needed to track valuable equipment assets. Click here to get some iButton applications all over the world (English only). What do I need to do to implement an iButton application? Any iButton application is composed of the following four basic parts. iButton (English only) Host system: it can be a PC, laptop, PDA, or embedded system. The read / write device can write information to or read information from the button. It can be the blue dot mentioned above (English only), a pen detector (English only) or a handheld device (English only). The software layer that connects the iButton and the computer and generates the required information in the required format. Multiple software development tools (SDK) can be downloaded for free from the website. For a list of SDKs and download links, see this page (English only). We also provide 1-Wire drivers (English only) for Microsoft platforms: OneWireViewer (English only), and demo programs that can read / write / use any iButton. How much does it cost to design a simple iButton application? Plus programming time, it is less than $ 50 (US $). The unit price of iButton is between $ 2 and $ 95; if there is a large order, there is a discount. The blue dot receiver and 1-Wire adapter form a simple read / write device, which costs between $ 38 and $ 43. The OneWireViewer demo software and SDK can be downloaded for free from our website. These are all the components needed to start the design. You can visit our Chinese website: get detailed information of all products, contact our agents in China to get the exact quotation.
What advantages does iButton have compared to other technologies? When developing iButton solutions, you may think of many complementary technologies. It may be a bar code, RFID tag, magnetic stripe, proximity card and smart card. Unlike barcode and magnetic stripe cards, most iButtons can not only read but also write. In addition, iButton's communication rate and product usage range far exceed the simple memory commonly used in RFID. In terms of ruggedness and durability, thin plastic smart cards cannot compare with the high strength of the iButton in stainless steel.
If you do n’t want to develop your own application, can you provide a complete solution? We have established partnerships with authorized solution developers (abbreviated as ASD) with many companies that develop iButton supervision systems that can be used to include access control, timing and attendance records, payroll, card fleet maintenance records, equipment production control , Fee collection, etc. ASD can also develop customized iButton applications-you only need to negotiate and discuss with the developer. You can search iButton Solutions Search (English only) to find solutions provided by our partners around the world.
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