Code Categories

All codes (5055)

TOP Contributors

  1. MIKROE (2784 codes)
  2. Alcides Ramos (405 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (133 codes)
  5. Bugz Bensce (97 codes)
  6. S P (73 codes)
  7. dany (71 codes)
  8. MikroBUS.NET Team (35 codes)
  9. NART SCHINACKOW (34 codes)
  10. Armstrong Subero (27 codes)

Most Downloaded

  1. Timer Calculator (142135 times)
  2. FAT32 Library (75452 times)
  3. Network Ethernet Library (59573 times)
  4. USB Device Library (49570 times)
  5. Network WiFi Library (45370 times)
  6. FT800 Library (45025 times)
  7. GSM click (31487 times)
  8. mikroSDK (30591 times)
  9. microSD click (27906 times)
  10. PID Library (27641 times)
Libstock prefers package manager

Package Manager

We strongly encourage users to use Package manager for sharing their code on Libstock website, because it boosts your efficiency and leaves the end user with no room for error. [more info]

< Back
Project

RFid Lock with 4 Relays

Rating:

11

Author: MIKROE

Last Updated: 2016-02-18

Package Version: 1.0.0.0

Category: RFid

Downloaded: 7306 times

Followed by: 3 users

License: MIT license  

Using PIC-Ready1 with PIC18F4520, RFid reader, Relay 4 board, along with EasyInput and EasyBuzz we have created a simple RFid lock that controls 4 separate relays with RFid cards. And it will cost you less than $100 USD!

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "RFid Lock with 4 Relays" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "RFid Lock with 4 Relays" changes.

Do you want to report abuse regarding "RFid Lock with 4 Relays".

  • Information
  • Comments (1)

Project Blog

Figure 1 - Your own RFid Lock set

Figure 1 - Your own RFid Lock set

Boards connected

View full image

At least once in our lives we have come across some kind of RFid locks in homes, offices, elevators or hotels. Some of you may have been inspired to build your own version of it for your home or as a final product. We will show you how you can do this in a blink of an eye. Using PIC-Ready1 with PIC18F4520, RFid reader, Relay 4 board, along with EasyInput and EasyBuzz we have created a RFid lock that controls 4 separate relays with RFid cards. And it will cost you less than $100!

RFid lock with 4 relays video

Video demonstration of the project

Watch on YouTube

Before you can use it, you must program the board to recognize your RFid cards, and assign them to each relay separately.

  1. Bring 5V to the input pins on PORTA associated with relays. You can do this using EasyInput board
  2. Reset PIC-Ready1 board to enter programming mode. Buzzer will signal that programming mode is enabled.
  3. One-by-one, program the RFid card for each relay by swaping it over RFid reader when a relay LED turns on.
  4. After you are finished, bring inputs on PORTA to GND and reset the board to enter normal mode.
  5. By swapping the appropriate card over the RFid reader, associated relay will turn on for 2 seconds, accompanied by a sound signalization.
  6. Buzzer will signal if the card is not recognized.

Figure 2 - RFid Lock schematics

Figure 2 - RFid Lock schematics

RFid Lock schematics

View full image

Source code of this project is provided for free, so you can modify it to suit your needs. Since PIC18F4520 comes preprogrammed with free UART Bootloader, you won’t have to spend a dollar more on external programmers. You can modify the project as much as you like, and expand this basic functionality with your own implementation ideas.

Buy Let’s make RFid Lock with 4 Relays kit for $99.00

ALSO FROM THIS AUTHOR

Driver Click

0

Driver Click features an IC with seven integrated high-current sink drivers, which can be used to drive a wide range of loads via simple parallel interface. These integrated drivers use high-efficiency MOSFETs for improved thermal performance.

[Learn More]

IR Gesture Click

0

IR Gesture Click is a mikroBUS add-on board that enables contactless gesture recognition, along with ambient light and proximity sensing capabilities with the APDS-9960 IC. This sensor integrates an LED and four directional photodiodes that receive the reflecting light.

[Learn More]

Silent Step 4 Click

0

Silent Step 4 Click is a compact add-on board representing a completely integrated step motor driver solution. This board features the TMC2240, a smart integrated stepper driver from Analog Devices. The driver is based on a 256 micro-steps built-in indexer, two fully integrated H-Bridges, and non-dissipative integrated current sensing (ICS). The two H-Bridges can drive motors of up to 36V and 3A at max.

[Learn More]

embeddedwiki libstock