Passive and semipassive RFID tags do not use a radio transmitter; instead, they use modulation of the reflected power from the tag antenna. Reflection of radio waves from an object has been a subject ...

RFID Module: Reads the UID from an RFID tag/card. If the UID matches the authorized UID, access is granted. Ensure the RFID tag/card UID matches the authorized UID in the code. Use the potentiometer ...

```{r echo=T, results='hide', error=FALSE, warning=FALSE, message=FALSE} #set working directory so R knows where to find and save data. This is the folder you created when you made a workspace above.