Circuit Documentation

Summary

This circuit involves an Arduino UNO and an ESP32 microcontroller, along with various sensors and output devices. The Arduino UNO is the primary controller, interfacing with a PIR sensor, a vibration sensor, a door sensor, an LED, and a piezo speaker. The ESP32 is connected to the Arduino UNO for additional processing capabilities.

Component List

Arduino UNO

• Description: A 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

ESP32

• Description: A low-cost, low-power system on a chip (SoC) with Wi-Fi and Bluetooth capabilities.
• Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, VIN, 3V3, D15, D2, D4, RX2, TX2, D5, D18, D19, D21, RX0, TX0, D22, D23, BOOT

PIR Sensor

• Description: A passive infrared sensor used to detect motion.
• Pins: VDD, SIG, GND

Door MC-38

• Description: A magnetic door sensor used to detect the opening and closing of doors.
• Pins: S, GND

SW-420 Vibration Sensor

• Description: A vibration sensor module used to detect vibrations.
• Pins: vcc, Ground, Digital output

LED: Two Pin (yellow)

• Description: A yellow LED with two pins.
• Pins: cathode, anode

Piezo Speaker

• Description: A piezoelectric speaker used to produce sound.
• Pins: pin1, pin2

Wiring Details

Arduino UNO

• 5V: Connected to VDD of PIR sensor, vcc of SW-420 Vibration Sensor, and S of Door MC-38.
• GND: Connected to cathode of LED, pin1 of Piezo Speaker, Ground of SW-420 Vibration Sensor, GND of PIR sensor, and GND of Door MC-38.
• D7: Connected to SIG of PIR sensor.
• D6: Connected to pin2 of Piezo Speaker.
• D5: Connected to anode of LED.
• D4: Connected to Digital output of SW-420 Vibration Sensor.
• D3: Connected to GND of Door MC-38.
• D1: Connected to RX0 of ESP32.
• D0: Connected to TX0 of ESP32.

ESP32

• RX0: Connected to D1 of Arduino UNO.
• TX0: Connected to D0 of Arduino UNO.

PIR Sensor

• VDD: Connected to 5V of Arduino UNO.
• SIG: Connected to D7 of Arduino UNO.
• GND: Connected to GND of Arduino UNO.

Door MC-38

• S: Connected to 5V of Arduino UNO.
• GND: Connected to D3 of Arduino UNO.

SW-420 Vibration Sensor

• vcc: Connected to 5V of Arduino UNO.
• Ground: Connected to GND of Arduino UNO.
• Digital output: Connected to D4 of Arduino UNO.

LED: Two Pin (yellow)

• cathode: Connected to GND of Arduino UNO.
• anode: Connected to D5 of Arduino UNO.

Piezo Speaker

• pin1: Connected to GND of Arduino UNO.
• pin2: Connected to D6 of Arduino UNO.

Documented Code

Arduino UNO Code (sketch.ino)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Documentation (documentation.txt)