- #1
volican
- 41
- 0
Hi,
I have an internet of things project and I am wondering how you would cheaply go about connecting a sensor to an RFD chip? I am a mechanical engineer by training so this is a bit of a learning curve, apologies if it is a really basic and obvious question. I have found this chip:
http://uk.farnell.com/nxp/sl3s4011f...2?MER=bn_level5_5NP_EngagementRecSingleItem_3
It makes reference to something called I2C. A quick googling give me the gist that it is for I/O.
Basically what I am trying to achieve is this:
1. The reader transmits a signal
2. The RFID chip receives this signal to provide power (this project requires a passive tag)
3. The sensor value at that point in time (which will actually just be the voltage value of a variable resistor) is logged
4. The ID of the RFID chip and data value that was just saved is sent back to the reader
Have I understood correctly that this I2C pin will allow me to do this? From what I read in the technical documentation I think so. If so would I have to build extra circuitry or could I connect it straight up? I want to use power that is transmitted from the reader. If I am totally wrong would you be able to point me in the right direction. Much appreciated for your help :)
I have an internet of things project and I am wondering how you would cheaply go about connecting a sensor to an RFD chip? I am a mechanical engineer by training so this is a bit of a learning curve, apologies if it is a really basic and obvious question. I have found this chip:
http://uk.farnell.com/nxp/sl3s4011f...2?MER=bn_level5_5NP_EngagementRecSingleItem_3
It makes reference to something called I2C. A quick googling give me the gist that it is for I/O.
Basically what I am trying to achieve is this:
1. The reader transmits a signal
2. The RFID chip receives this signal to provide power (this project requires a passive tag)
3. The sensor value at that point in time (which will actually just be the voltage value of a variable resistor) is logged
4. The ID of the RFID chip and data value that was just saved is sent back to the reader
Have I understood correctly that this I2C pin will allow me to do this? From what I read in the technical documentation I think so. If so would I have to build extra circuitry or could I connect it straight up? I want to use power that is transmitted from the reader. If I am totally wrong would you be able to point me in the right direction. Much appreciated for your help :)