Circuit Documentation
Summary
This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, an LED, an LDR (Light Dependent Resistor), an MQ-2 gas sensor, a touch sensor, and a buzzer. The circuit is designed to interface these components with the Arduino UNO to perform various sensing and output functions.
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
LED: Two Pin (white)
- Description: A white LED with two pins.
- Pins: cathode, anode
LDR
- Description: A Light Dependent Resistor used to detect light levels.
- Pins: A0, D0, GND, VCC
MQ-2
- Description: A gas sensor used to detect various gases including LPG, i-butane, propane, methane, alcohol, Hydrogen, and smoke.
- Pins: GND, VCC, ANALOG, Digital
Touch Sensor TTP233
- Description: A touch sensor module based on the TTP233 chip.
- Pins: GND, I/O, VCC
Buzzer
- Description: A simple buzzer used for sound output.
- Pins: PIN, GND
Wiring Details
Arduino UNO
- 5V: Connected to VCC of LDR, MQ-2, and Touch Sensor TTP233
- GND: Connected to GND of LDR, MQ-2, Touch Sensor TTP233, and Buzzer
- A0: Connected to ANALOG of MQ-2
- D9: Connected to PIN of Buzzer
- D8: Connected to anode of LED
- D7: Connected to D0 of LDR
- D6: Connected to I/O of Touch Sensor TTP233
LED: Two Pin (white)
- cathode: Connected to GND of Arduino UNO
- anode: Connected to D8 of Arduino UNO
LDR
- VCC: Connected to 5V of Arduino UNO
- GND: Connected to GND of Arduino UNO
- D0: Connected to D7 of Arduino UNO
MQ-2
- VCC: Connected to 5V of Arduino UNO
- GND: Connected to GND of Arduino UNO
- ANALOG: Connected to A0 of Arduino UNO
Touch Sensor TTP233
- VCC: Connected to 5V of Arduino UNO
- GND: Connected to GND of Arduino UNO
- I/O: Connected to D6 of Arduino UNO
Buzzer
- PIN: Connected to D9 of Arduino UNO
- GND: Connected to GND of Arduino UNO
Documented Code
Arduino UNO Code (sketch.ino)
void setup() {
}
void loop() {
}
Additional Documentation (documentation.txt)
This document provides a comprehensive overview of the circuit, including the components used, their wiring details, and the code running on the Arduino UNO.