An automatic toll gate system using Arduino revolutionises traditional toll collection by eliminating manual intervention.

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 ...

```{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.

I recently wrote a German tutorial (https://plantprogrammer.de/esp32-rfid-and-mqtt/) that describes on how to use an ESP to publish UIDs of RFID-tags into an MQTT ...

We have been able to conclude that using an isotropic antenna, an RFID reader might achieve a read range of a few meters with 1 watt of output power. This configuration might be fine if RFID tags of ...