Circuit Documentation

Summary

This circuit is designed to control a 12V solenoid lock using an Arduino 101 microcontroller, an RFID-RC522 module for authentication, and a relay module to switch the solenoid lock. The circuit also includes two LEDs (red and green) to indicate the status of the lock. The entire system is powered by a 12V power supply, with an electrolytic capacitor for voltage stabilization.

Component List

1. Relay module 5v-30v

   • Pins: common contact, normally open, normally closed, trigger, V-, V+
   • Description: A relay module used to switch the 12V solenoid lock.
   • Purpose in Circuit: To control the power to the solenoid lock based on the Arduino's signal.

2. 12V solenoid lock

   • Pins: VCC, GND
   • Description: A solenoid lock that operates at 12V.
   • Purpose in Circuit: To lock or unlock based on the relay's state.

3. 12v power supply

   • Pins: +, -
   • Description: A power supply providing 12V DC.
   • Purpose in Circuit: To power the solenoid lock and other components.

4. LED: Two Pin (red)

   • Pins: cathode, anode
   • Description: A red LED.
   • Purpose in Circuit: To indicate the status of the lock.

5. LED: Two Pin (green)

   • Pins: cathode, anode
   • Description: A green LED.
   • Purpose in Circuit: To indicate the status of the lock.

6. Arduino 101

   • Pins: A5/SCL, A4/SDA, AREF, GND, D13/SCK, D12/MISO, D11 PWM/MOSI, D10 PWM/SS, D9 PWM, D8, D7, D6 PWM, D5 PWM, D4, D3 PWM, D2, D1/TX, D0/RX, AIN, ioref, RESET, 3V3, 5V, VIN, A0, A1, A2, A3, ICSP MISO, ICSP SCK, ICSP MOSI
   • Description: A microcontroller board.
   • Purpose in Circuit: To control the relay and read the RFID module.

7. RFID-RC522

   • Pins: VCC (3.3V), RST, GND, IRQ, MISO, MOSI, SCK, SDA
   • Description: An RFID reader module.
   • Purpose in Circuit: To read RFID tags for authentication.

8. Electrolytic Capacitor

   • Pins: -, +
   • Description: A capacitor with a capacitance of 1µF.
   • Purpose in Circuit: To stabilize the voltage supply.

Wiring Details

Relay module 5v-30v

• common contact: Connected to the + pin of the 12v power supply and the + pin of the electrolytic capacitor.
• normally open: Connected to the VCC pin of the 12V solenoid lock.
• trigger: Connected to the D5 PWM pin of the Arduino 101.
• V-: Connected to the GND pin of the Arduino 101, the GND pin of the RFID-RC522, and the cathode pin of the red LED.
• V+: Connected to the 5V pin of the Arduino 101.

12V solenoid lock

• VCC: Connected to the normally open pin of the relay module.
• GND: Connected to the - pin of the 12v power supply and the - pin of the electrolytic capacitor.

12v power supply

• +: Connected to the common contact pin of the relay module and the + pin of the electrolytic capacitor.
• -: Connected to the GND pin of the Arduino 101, the - pin of the electrolytic capacitor, and the GND pin of the 12V solenoid lock.

LED: Two Pin (red)

• cathode: Connected to the GND pin of the Arduino 101, the GND pin of the RFID-RC522, and the V- pin of the relay module.
• anode: Connected to the D7 pin of the Arduino 101.

LED: Two Pin (green)

• cathode: Not connected.
• anode: Connected to the D6 PWM pin of the Arduino 101.

Arduino 101

• VIN: Connected to the + pin of the electrolytic capacitor and the common contact pin of the relay module.
• GND: Connected to the - pin of the electrolytic capacitor, the - pin of the 12v power supply, the GND pin of the 12V solenoid lock, the GND pin of the RFID-RC522, and the cathode pin of the red LED.
• D5 PWM: Connected to the trigger pin of the relay module.
• D6 PWM: Connected to the anode pin of the green LED.
• D7: Connected to the anode pin of the red LED.
• 3V3: Connected to the VCC (3.3V) pin of the RFID-RC522.
• D9 PWM: Connected to the RST pin of the RFID-RC522.
• D10 PWM/SS: Connected to the SDA pin of the RFID-RC522.
• D11 PWM/MOSI: Connected to the MOSI pin of the RFID-RC522.
• D12/MISO: Connected to the MISO pin of the RFID-RC522.
• D13/SCK: Connected to the SCK pin of the RFID-RC522.
• 5V: Connected to the V+ pin of the relay module.

RFID-RC522

• VCC (3.3V): Connected to the 3V3 pin of the Arduino 101.
• RST: Connected to the D9 PWM pin of the Arduino 101.
• GND: Connected to the GND pin of the Arduino 101, the GND pin of the relay module, and the cathode pin of the red LED.
• MISO: Connected to the D12/MISO pin of the Arduino 101.
• MOSI: Connected to the D11 PWM/MOSI pin of the Arduino 101.
• SCK: Connected to the D13/SCK pin of the Arduino 101.
• SDA: Connected to the D10 PWM/SS pin of the Arduino 101.

Electrolytic Capacitor

• +: Connected to the + pin of the 12v power supply, the common contact pin of the relay module, and the VIN pin of the Arduino 101.
• -: Connected to the GND pin of the Arduino 101, the - pin of the 12v power supply, and the GND pin of the 12V solenoid lock.

Code

There is no code provided for this circuit.