Circuit Documentation

Summary

This circuit is designed to detect flames using a KY-026 Flame Sensor and activate a water pump and buzzer in response. The circuit also includes an LED indicator and is powered by a 5V battery. A rocker switch is used to control the power supply to the circuit.

Component List

1. PNP Transistor (ECB)

   • Pins: emitter, collector, base
   • Description: A PNP transistor used to switch the water pump and buzzer.

2. Resistor (1k Ohms)

   • Pins: pin1, pin2
   • Description: A resistor with a resistance of 1000 Ohms.

3. Resistor (220 Ohms)

   • Pins: pin1, pin2
   • Description: A resistor with a resistance of 220 Ohms.

4. Buzzer

   • Pins: PIN, GND
   • Description: A buzzer that sounds an alarm when a flame is detected.

5. Water Pump

   • Pins: positive, negative
   • Description: A water pump that activates to extinguish the flame.

6. 5V Battery

   • Pins: +, -
   • Description: A 5V battery that powers the circuit.

7. KY-026 Flame Sensor

   • Pins: AO, GND, VCC, DO
   • Description: A flame sensor that detects the presence of a flame.

8. LED: Two Pin (green)

   • Pins: cathode, anode
   • Description: A green LED that indicates the status of the circuit.

9. Rocker Switch (SPST)

   • Pins: 1, 2
   • Description: A single-pole single-throw (SPST) rocker switch used to control the power supply.

Wiring Details

PNP Transistor (ECB)

• Emitter: Connected to the DO pin of the KY-026 Flame Sensor and pin2 of the 1k Ohm Resistor.
• Collector: Connected to the positive pin of the water pump and the PIN of the buzzer.
• Base: Connected to pin1 of the 1k Ohm Resistor.

Resistor (1k Ohms)

• Pin1: Connected to the base of the PNP Transistor.
• Pin2: Connected to the emitter of the PNP Transistor and the DO pin of the KY-026 Flame Sensor.

Resistor (220 Ohms)

• Pin1: Connected to the anode of the LED.
• Pin2: Connected to pin2 of the Rocker Switch and the VCC pin of the KY-026 Flame Sensor.

Buzzer

• PIN: Connected to the collector of the PNP Transistor.
• GND: Connected to the negative pin of the water pump, the cathode of the LED, the - pin of the 5V Battery, and the GND pin of the KY-026 Flame Sensor.

Water Pump

• Positive: Connected to the collector of the PNP Transistor.
• Negative: Connected to the GND pin of the buzzer, the cathode of the LED, the - pin of the 5V Battery, and the GND pin of the KY-026 Flame Sensor.

5V Battery

• +: Connected to pin1 of the Rocker Switch.
• -: Connected to the negative pin of the water pump, the GND pin of the buzzer, the cathode of the LED, and the GND pin of the KY-026 Flame Sensor.

KY-026 Flame Sensor

• DO: Connected to the emitter of the PNP Transistor and pin2 of the 1k Ohm Resistor.
• GND: Connected to the negative pin of the water pump, the GND pin of the buzzer, the cathode of the LED, and the - pin of the 5V Battery.
• VCC: Connected to pin2 of the Rocker Switch and pin2 of the 220 Ohm Resistor.

LED: Two Pin (green)

• Anode: Connected to pin1 of the 220 Ohm Resistor.
• Cathode: Connected to the negative pin of the water pump, the GND pin of the buzzer, the - pin of the 5V Battery, and the GND pin of the KY-026 Flame Sensor.

Rocker Switch (SPST)

• Pin1: Connected to the + pin of the 5V Battery.
• Pin2: Connected to pin2 of the 220 Ohm Resistor and the VCC pin of the KY-026 Flame Sensor.

Code

There is no microcontroller code provided for this circuit.