Circuit Documentation

Summary

This document provides a detailed overview of a circuit that integrates an Arduino UNO microcontroller with various sensors and a LoRa module. The circuit is designed to collect data from the sensors and transmit it using the LoRa module. The sensors include an MQ-7 gas sensor, an MQ131 ozone sensor, and a GP2Y1010AU0F dust sensor. The circuit also includes a resistor and an electrolytic capacitor for proper functioning.

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

LORA_01H

• Description: A LoRa module for long-range communication.
• Pins: A/G, GND, 3V3, RST, IO_0, IO_1, IO_2, IO-3, NSS, MOSI, MISO, SCK, IO_5, IO_4

MQ131

• Description: An ozone gas sensor.
• Pins: GND, AOUT, DOUT, VCC

GP2Y1010AU0F

• Description: An optical dust sensor.
• Pins: VCC, Vout, S-GND, LED, LED-GND, V-LED

Resistor

• Description: A resistor with a resistance of 100 Ohms.
• Pins: pin1, pin2
• Properties: Resistance: 100 Ohms

Electrolytic Capacitor

• Description: A capacitor with a capacitance of 0.000047 Farads.
• Pins: -, +
• Properties: Capacitance: 0.000047 Farads

MQ-7 Breakout

• Description: A carbon monoxide gas sensor.
• Pins: VCC, GND, DO, AO

Wiring Details

Arduino UNO

• 3.3V: Connected to VCC of MQ-7 Breakout, pin1 of Resistor, 3V3 of LORA_01H, VCC of MQ131, VCC of GP2Y1010AU0F
• GND: Connected to GND of MQ-7 Breakout, + of Electrolytic Capacitor, GND of LORA_01H, GND of MQ131, S-GND and LED-GND of GP2Y1010AU0F
• A0: Connected to AO of MQ-7 Breakout
• A1: Connected to Vout of GP2Y1010AU0F
• A3: Connected to AOUT of MQ131
• D13: Connected to SCK of LORA_01H
• D12: Connected to MISO of LORA_01H
• D11: Connected to MOSI of LORA_01H
• D10: Connected to NSS of LORA_01H
• D9: Connected to RST of LORA_01H
• D8: Connected to LED of GP2Y1010AU0F
• D3: Connected to DOUT of MQ131
• D2: Connected to IO_0 of LORA_01H
• D0: Connected to DO of MQ-7 Breakout

LORA_01H

• 3V3: Connected to 3.3V of Arduino UNO
• GND: Connected to GND of Arduino UNO
• SCK: Connected to D13 of Arduino UNO
• MISO: Connected to D12 of Arduino UNO
• MOSI: Connected to D11 of Arduino UNO
• NSS: Connected to D10 of Arduino UNO
• RST: Connected to D9 of Arduino UNO
• IO_0: Connected to D2 of Arduino UNO

MQ131

• VCC: Connected to 3.3V of Arduino UNO
• GND: Connected to GND of Arduino UNO
• AOUT: Connected to A3 of Arduino UNO
• DOUT: Connected to D3 of Arduino UNO

GP2Y1010AU0F

• VCC: Connected to 3.3V of Arduino UNO
• S-GND: Connected to GND of Arduino UNO
• LED-GND: Connected to GND of Arduino UNO
• Vout: Connected to A1 of Arduino UNO
• LED: Connected to D8 of Arduino UNO
• V-LED: Connected to pin2 of Resistor and - of Electrolytic Capacitor

Resistor

• pin1: Connected to 3.3V of Arduino UNO
• pin2: Connected to V-LED of GP2Y1010AU0F and - of Electrolytic Capacitor

Electrolytic Capacitor

• +: Connected to GND of Arduino UNO
• -: Connected to pin2 of Resistor and V-LED of GP2Y1010AU0F

MQ-7 Breakout

• VCC: Connected to 3.3V of Arduino UNO
• GND: Connected to GND of Arduino UNO
• AO: Connected to A0 of Arduino UNO
• DO: Connected to D0 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:

}

Additional Documentation (documentation.txt)