Circuit Documentation
Summary
This document provides a detailed overview of a circuit that includes various sensors, a Bluetooth module, and an Arduino UNO microcontroller. The circuit is designed to collect environmental data such as temperature, humidity, and gas concentration, and transmit this data via Bluetooth.
Component List
HC-05 Bluetooth Module
- Description: A Bluetooth module used for wireless communication.
- Pins: Key, VCC, TXD, RXD, State, GND
Rain/Snow Sensor - Board
- Description: A sensor board used to detect rain or snow.
- Pins: 1, 2, A0 (Analog), D0 (Digital), GND, VCC (5V)
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
DHT11 Humidity and Temperature Sensor
- Description: A sensor used to measure humidity and temperature.
- Pins: VDD, DATA, NULL, GND
Temperature Sensor (LM35)
- Description: A sensor used to measure temperature.
- Pins: +Vs, Vout, GND
MQ-7 Breakout
- Description: A sensor used to measure carbon monoxide (CO) levels.
- Pins: VCC, GND, DO, AO
Verter USB
- Description: A USB power supply module.
- Pins: VIN, ENABLE, GND, PS, PG, 5.0V
Wiring Details
HC-05 Bluetooth Module
- VCC connected to 5V on Arduino UNO
- GND connected to GND on Arduino UNO
- TXD connected to D0 on Arduino UNO
- RXD connected to D1 on Arduino UNO
Rain/Snow Sensor - Board
- GND connected to GND on Arduino UNO
- VCC (5V) connected to 5V on Arduino UNO
- A0 (Analog) connected to A2 on Arduino UNO
Arduino UNO
- 5V connected to VCC on HC-05 Bluetooth Module, Rain/Snow Sensor - Board, DHT11 Humidity and Temperature Sensor, Temperature Sensor (LM35), and MQ-7 Breakout
- GND connected to GND on HC-05 Bluetooth Module, Rain/Snow Sensor - Board, DHT11 Humidity and Temperature Sensor, Temperature Sensor (LM35), and MQ-7 Breakout
- A0 connected to DO on MQ-7 Breakout
- A1 connected to Vout on Temperature Sensor (LM35)
- D2 connected to DATA on DHT11 Humidity and Temperature Sensor
- D0 connected to TXD on HC-05 Bluetooth Module
- D1 connected to RXD on HC-05 Bluetooth Module
- A2 connected to A0 (Analog) on Rain/Snow Sensor - Board
DHT11 Humidity and Temperature Sensor
- VDD connected to 5V on Arduino UNO
- GND connected to GND on Arduino UNO
- DATA connected to D2 on Arduino UNO
Temperature Sensor (LM35)
- +Vs connected to 5V on Arduino UNO
- GND connected to GND on Arduino UNO
- Vout connected to A1 on Arduino UNO
MQ-7 Breakout
- VCC connected to 5V on Arduino UNO
- GND connected to GND on Arduino UNO
- DO connected to A0 on Arduino UNO
Verter USB
- Not connected in this circuit
Documented Code
Arduino UNO Code
void setup() {
}
void loop() {
}
This code is a basic template for the Arduino UNO. The setup
function is used to initialize any settings or configurations, and the loop
function contains the main code that runs repeatedly.