Description: RFID (radio-frequency identification) is the wireless non-contact use of radio-frequency electromagnetic fields, for the purposes of identifying and tracking tags attached to objects. This is the ID-3LA, a very simple to use RFID reader module from ID Innovations. The only holdups are the 2mm pin spacing and you will need an external antenna. Power the module, hold up a 125kHz card, and get a serial string output containing the unique ID of the card.
Note: The new ID-3LA is essentially the same as the ID-2, but has a lower voltage input.
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It took some research to figure out the right way to make the antenna, but it turned to be a lot easier than I thought. I made a video of what I learned in hopes that it saves someone else some time. https://youtu.be/MrDXfCmt4-U
I’d have given it five stars if the pins matched up with a breadboard, but that’s my only real complaint.
I found this Reader very versatile when time’s is come to match an antenna on it. With this Reader I have been able to get a 15 inches read distance with an Eye Key Fob Tag. The construction of the antenna: A 10x10cm Antenna with a 0.034AWG copper wire (Round Form) Inductance of 1.33Mh Around 80 turns of wire, (winding has to be very close) An external offset capacitor have been use for mine(47PF) A 70 volts Peak to peak was generate from the Reader(MAX 80v) with a 50MA drawn from the antenna a series resistance of 4,2OHMs have been use with the antenna to drop the antenna current at a safe level(50MA) NO short PCB plane (short turn) have been use to calibrate the antenna only a offset capacitor have been use. We used the TTL Data encoding to communicate with a Basic Stamp controller(ASCII data structure).
Power use: 5v current consumption: (Idle) 50ma (On read) 180ma
Prototypes(50 unites) made with it was use to monitor Drinking habit’s of piglet at a study research farm.
The two problems found was the cost and the non-standard pins configuration of the ID-3LA socket, the 2MM space pin is not standard to DIP form , we had to manage a socket form for it in PCB software.
Communication performance: The use of a buffer line wasn’t needed. we have been able with a micro-controller to communicate with the IC reader with a 25' foots flat 5 contacts cable(no shield protection) without communication errors.
En brief Very easy to use and manipulate. we didn’t work with the Wiegand26 and Magnetic ABA Track2 data formats protocol , some shield protection might be take in consideration if you intend to use the Magnetic ABA protocol since timing is critical with that form.