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RFID RS485 ARDUINO SYSTEM

2 years ago 961
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Description

In this DIY guide I will show you how to make your own security check system based on Arduino!

This project started out as a Bachelor's thesis by me - John Vasilakis (supervised by Grigoris Tziallas) - Electronic Engineering Department of Stereas Elladas University. We are supporting the open hardware - software community so this project will be marked as an open-source. Before share/copy/change anything of below guide, make sure to read and agree with the ​CC BY-NC-SA licence agreement!

We used the RFID technology to read scanned card and the RS485 electrical data bus protocol for communication. In this project I decided to make my own PCB that is based on Arduino UNO microcontroller - Atmega328p.

We can have up to 254 slave-check point stations and one master station in the RS485 data bus. The master station is communicating with one computer in security room via serial USB port. We will describe the communication protocol in the following steps!

https://www.ardumotive.com/arduino-security-check-system-en.html

Documents

Sheet_1

NEW_PCB

BOM

ID Name Designator Footprint Quantity
1 36628af0fe3849a2f482991ed56c81b7 U1 DIP-28_300MIL 1
2 3b214eed6a26447f87267a5851568778 R1 AXIAL-0.4 1
3 ee180ebb8a774c1c828df359787f4f74 X1 OSC-49S-1 1
4 bbab01c585fe4dbcbb60ca0db50c8151 C1 CAP-D5.0XF2.0 1
5 e99ee054b6dde646ab46be1e5408730f C2,C3 RAD-0.1 2
6 76d1280f2be942b4a7894b917959b68f H1 HDR-5X1/2.54 1
7 2938625de5210069302478d984714004 C4 RAD-0.1 1
8 c9f5a24de7d9962ed69808324826d717 POWER,485 SCREW TERMINAL 5MM 2P 2
9 2f4af990e60844d282d40951db7f9ce3 SG1 BUZZER-12MM-KIT 1
10 3df62c1c9ef542698be33206e6e615fa U2 DIP-8 1
11 f426025f26228162dab8da65d9abf4e1 B1 BATTERY-1 1
12 c83e72fc53a44b12b3b1bbcfe14385d8 X2 3*8 1
13 58eceb75a41c465983ca29d96bebb4d9 RFID 1X7 PIN HEADER 2.54MM A 1
14 f7033e64cccb43708e201e89bb78c171 LCD PIN_HEADER_STRAIGHT_1X12_PITCH2.54MM 1
15 a72c251b32f44919a2cb2060c0926440 R2 TRIMMER_3362P 1
16 40281d6ae52a387498d6ca880ceda5d3 U3 DIP-8 1
17 753e767d58d5440e8ad405f7351ac046 H2 HDR-3X1/2.54 1
18 753e767d58d5440e8ad405f7351ac046 H3 HDR-3X1/2.54 1
19 3b214eed6a26447f87267a5851568778 R3,R4,R5 AXIAL-0.4 3

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