I am currently working on a senior design project for next semester and
need some help. The objective of the design is to take a wired barcode
scanner and convert it to a wireless scanner that can communicate with
a PC. The range must encompass the size of a typical house. The scanner
has an rj45 male plug connected to a USB converter. The signal on the
USB has a frequency of about 70 KHz. Here is a link to the scanner:
'Metrologic Instruments Inc. | Products - MS6720'
(
http://www.metrologic.com/Corporate/...pos/MS6720.htm)
Also, the computer must be able to transmit an audio signal back to the
computer. I have limited experience with wireless hardware and have come
up with few feasible solutions. Our budget is $125 dollars (the scanner
was provided).
We have currently designed an audio transmitter, just below the FM
range, but cannot come up with a good solution for the barcode scanner
transmission. From what I have read, it seems that we will have to
transmit in the 2.4GHz band, but I don't know what technology to use.
It would be nice to implement both the audio and the barcode
transmission into a pair of transceivers: one at the PC and one at the
scanner. They will never be transmitting at the same time. There could
be a relay transceiver in between the two others...
Any ideas or comments would be greatly appreciated. Thanks.
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