Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes various components such as an Arduino UNO, an NRF24L01 wireless module, an LCD display, a pushbutton, resistors, capacitors, LEDs, a piezo buzzer, a relay, and a power supply. The circuit is designed to interface these components to perform specific functions, with the Arduino UNO serving as the central microcontroller.

Component List

1. NRF24L01

   • Description: Wireless transceiver module
   • Pins: IRQ (not used), MOSI, CSN, VCC (3V), GND, CE, SCK, MISO

2. Lcd 20x4 i2c

   • Description: 20x4 character LCD with I2C interface
   • Pins: GND, 5V, SCA, SCL

3. AC Wire

   • Description: AC power wire
   • Pins: GND, Phase

4. Battery 12V

   • Description: 12V battery
   • Pins: +, -

5. Pushbutton

   • Description: Pushbutton switch
   • Pins: Pin 2, Pin 1, Pin 3, Pin 4

6. Resistor (10k Ohms)

   • Description: Resistor with 10k Ohms resistance
   • Pins: pin1, pin2

7. Resistor (200 Ohms)

   • Description: Resistor with 200 Ohms resistance
   • Pins: pin1, pin2

8. LED: Two Pin (red)

   • Description: Red LED
   • Pins: cathode, anode

9. LED: Two Pin (green)

   • Description: Green LED
   • Pins: cathode, anode

10. Piezo Buzzer

    • Description: Piezoelectric buzzer
    • Pins: pin 1, pin 2

11. Ceramic Capacitor (0.1uF)

    • Description: Ceramic capacitor with 0.1uF capacitance
    • Pins: pin0, pin1

12. Electrolytic Capacitor (10uF)

    • Description: Electrolytic capacitor with 10uF capacitance
    • Pins: -, +

13. Arduino UNO

    • Description: Microcontroller board based on the ATmega328P
    • Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

14. 12V Relay

    • Description: Relay module for switching high voltage
    • Pins: NO, COM, NC, IN, DC-, DC+

Wiring Details

NRF24L01

• VCC (3V): Connected to Arduino UNO 5V, Pushbutton Pin 4, LCD 20x4 i2c 5V, Electrolytic Capacitor +, Ceramic Capacitor pin0
• GND: Connected to Arduino UNO GND, AC Wire GND, Battery 12V -, Resistor pin1, LCD 20x4 i2c GND, Electrolytic Capacitor -, 12V Relay DC-, Ceramic Capacitor pin1
• SCK: Connected to Arduino UNO D13
• MISO: Connected to Arduino UNO D12
• MOSI: Connected to Arduino UNO D11
• CSN: Connected to Arduino UNO D10
• CE: Connected to Arduino UNO D9

Lcd 20x4 i2c

• 5V: Connected to Arduino UNO 5V, Pushbutton Pin 4, NRF24L01 VCC (3V), Electrolytic Capacitor +, Ceramic Capacitor pin0
• GND: Connected to Arduino UNO GND, AC Wire GND, Battery 12V -, Resistor pin1, NRF24L01 GND, Electrolytic Capacitor -, 12V Relay DC-, Ceramic Capacitor pin1
• SCA: Connected to Arduino UNO A4
• SCL: Connected to Arduino UNO A5

AC Wire

• GND: Connected to Battery 12V -, Arduino UNO GND, Resistor pin1, NRF24L01 GND, LCD 20x4 i2c GND, Electrolytic Capacitor -, 12V Relay DC-, Ceramic Capacitor pin1
• Phase: Connected to 12V Relay NO

Battery 12V

• +: Connected to Arduino UNO Vin, 12V Relay COM, 12V Relay DC+
• -: Connected to AC Wire GND, Arduino UNO GND, Resistor pin1, NRF24L01 GND, LCD 20x4 i2c GND, Electrolytic Capacitor -, 12V Relay DC-, Ceramic Capacitor pin1

Pushbutton

• Pin 4: Connected to Arduino UNO 5V, NRF24L01 VCC (3V), LCD 20x4 i2c 5V, Electrolytic Capacitor +, Ceramic Capacitor pin0
• Pin 2: Connected to Ceramic Capacitor pin0
• Pin 1: Connected to Arduino UNO D6, Resistor pin2
• Pin 3: Connected to Ceramic Capacitor pin1

Resistor (10k Ohms)

• pin1: Connected to AC Wire GND, Battery 12V -, Arduino UNO GND, NRF24L01 GND, LCD 20x4 i2c GND, Electrolytic Capacitor -, 12V Relay DC-, Ceramic Capacitor pin1
• pin2: Connected to Pushbutton Pin 1, Arduino UNO D6

Resistor (200 Ohms)

• pin1: Connected to Piezo Buzzer pin 1, Arduino UNO GND
• pin2: Connected to LED: Two Pin (red) cathode, LED: Two Pin (green) cathode

LED: Two Pin (red)

• anode: Connected to Arduino UNO D3
• cathode: Connected to Resistor pin2

LED: Two Pin (green)

• anode: Connected to Arduino UNO D2
• cathode: Connected to Resistor pin2

Piezo Buzzer

• pin 1: Connected to Resistor pin1, Arduino UNO GND
• pin 2: Connected to Arduino UNO D1

Ceramic Capacitor (0.1uF)

• pin0: Connected to Pushbutton Pin 2
• pin1: Connected to Pushbutton Pin 3

Electrolytic Capacitor (10uF)

• +: Connected to Arduino UNO 5V, Pushbutton Pin 4, NRF24L01 VCC (3V), LCD 20x4 i2c 5V, Ceramic Capacitor pin0
• -: Connected to AC Wire GND, Battery 12V -, Arduino UNO GND, Resistor pin1, NRF24L01 GND, LCD 20x4 i2c GND, 12V Relay DC-, Ceramic Capacitor pin1

Arduino UNO

• 5V: Connected to Pushbutton Pin 4, NRF24L01 VCC (3V), LCD 20x4 i2c 5V, Electrolytic Capacitor +, Ceramic Capacitor pin0
• GND: Connected to AC Wire GND, Battery 12V -, Resistor pin1, NRF24L01 GND, LCD 20x4 i2c GND, Electrolytic Capacitor -, 12V Relay DC-, Ceramic Capacitor pin1
• Vin: Connected to Battery 12V +
• A4: Connected to LCD 20x4 i2c SCA
• A5: Connected to LCD 20x4 i2c SCL
• D13: Connected to NRF24L01 SCK
• D12: Connected to NRF24L01 MISO
• D11: Connected to NRF24L01 MOSI
• D10: Connected to NRF24L01 CSN
• D9: Connected to NRF24L01 CE
• D7: Connected to 12V Relay IN
• D6: Connected to Pushbutton Pin 1, Resistor pin2
• D3: Connected to LED: Two Pin (red) anode
• D2: Connected to LED: Two Pin (green) anode
• **