Arduino RFID Door Lock

Step 3 Build the RFID Reader

Now that you have your arduino bread boarded and working you can put together the RFID reader portion of the circuit that will contain the ID-10 or ID-20 and RGB LED to indicate the status of the circuit. Remember that the reader will be outside and separate from the controller inside so that someone cannot easily break in.

To build this, we are going to send 5v/Ground over from the primary bread board to a secondary bread board we are building the Reader on. Also send over 3 wires from 3 of the arduino output pins to control the RGB LED, one for each color. One more wire, Brown in the pictures, will be a serial connection for the ID-20 to talk to the arduino's Rx serial input. This is a very simple circuit to connect. LED's get resistors and a few points on the ID-20 are tied to ground/5v to set the correct status.

To make it easier to breadboard the ID-10/ID-20 Sparkfun sells a Breakout board that allows you to attach longer pin headers that are spaced to fit a bread board. This part and the pinheaders and listed in the parts list.

The schematic should be strait forward and easy to follow.

Comments

[PrivatHost]

Which Values has the Resistors R1, R2, R3, R4, R5?

[trimond]

Could u tell what is the header and the values for resistors