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How to use 125khz RFID reader with analog multiplexer?
I don’t know how to user 125kHz RFID reader with traditional analog multiplexer and to sent the signal from antennas to multiplexer and then use the multiplexer to read the tags.
Can You Copy A mux signal to an Arduino?
You are not going to be able to “copy” the signal of the mux to the reader via the arduino board. If you connect the antenna to the arduino analog input through the multiplexer, the signal will be converted by the ADC, and the best you could do later is convert it back with a DAC, losing a lot of signal integrity.
How to control the select signal on Arduino?
With your arduino you should control the select signal. So, by giving values to the select signal, you can select which antenna connects to the reader. You should analyze the impact of the multiplexer on the connection between the antenna and the reader, too. Thanks for contributing an answer to Electrical Engineering Stack Exchange!
Can a chess piece have a RFID tag?
Every chess piece will have RFID tag. My idea will be to have 2 multiplexers (1*8) one for the rows and another one for the columns. When I want to read the position of a piece I just activate the corresponding row and column of this piece.
Where does the RF signal come from on a RFID reader?
Current RF transmitters send the signal in a broad pattern that radiates from the tip of the reader’s antenna. As a result, much of the signal is wasted. Honeywell engineers designed an inexpensive, reconfigurable antenna that concentrates all the RF power generated by the reader in a single direction.
How to improve the range of RFID readers with a?
However, as warehouses get larger, the range of the signal sent from the reader antenna to the tag must be increased to reach the most distant cartons on the shelves. Honeywell engineers successfully improved the range of the RFID reader, while also keeping the power usage within acceptable levels.
How does Ansys model a RFID reader?
The team uses Ansys HFSS to attain its goal and model the radio frequency (RF) signals emitted by the reader. Current RF transmitters send the signal in a broad pattern that radiates from the tip of the reader’s antenna.