iButton’s 64-bit Serial Number(also called ID) can be copied or cloned by TM1990B software for windows along with our iButton Reader for Universal Serial Port.
This artitcle focus on the copying process only. For copy software setup process please refer to Install iButton Copy Software TM1990B on Windows XP/7(32bit)/8(32bit).
Prepare a TM1990 key, a RW1990 key (above pictures) and an iButton reader for serial port with Blue Dot cable as below:
First connect reader to serial port of the computer board as below shows:
Now launch the program by the shortcut. (What is this about? Please refer to Install iButton Copy Software TM1990B on Windows XP/7(32bit)/8(32bit).)
Note: if shortcut does not show on desktop, then go to the installation directory to start it.
Default location: C:\Program Files\ICOWCN\tm1990b\tm1990B.exe
Then, the programmer shows as below:
Note: For copy purpose, we only focus on the red column of the program.
Put a TM1990 key on the blue dot and keep holding it, then click “ROMRD” and wait for the ID show in the first text box as follow:
Then click the “Write ROM”button and wait until the ID show in the ROMID box as following:
Still keep the key holding in the Blue Dot then click “ROMReadContinu” and the START is selected as follow:
Now take off the TM1990 key from and put an RW1990 key on the Blue Dot. Now first click “Write Rom” and then click “ROMReadContinu” until the STOP box is selected as following:
Now the copy process in complete.
The RW1990 key now has the same ID as the TM1990 key as shown from 1-Wire Viewer as below:
About iButton CC
iButton CC is an Integrated High-Tech Which Includes Development, Production, Distribute and Trade. We manufacture & supply iButton, Dallas keys, iButton readers and iButton probes. We offer Chinese domestic ones as well as products by Maxim Integrated. Take a visit to our website iButton.cc for more product detail.