Gas leakage detection and Automatic Valve shut down using Arduino ,Solenoid Valve, Gas Sensor MQ-2

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Gas leakage SMS Alert using gsm module:
• Arduino Gas leakage de...
Description:
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Do you want to learn how to make a gas leak detection and automatic valve shut down system using Arduino, MQ-2 sensor, relay module, and Solenoid valve? then watch this tutorial from start to the very end. In this tutorial, we will be covering how to find the solenoid valve coil resistance, How to perform the relay driver circuit design calculations to make our own relay module, which can be then used for controlling the solenoid valve. Let's get started.
A solenoid valve is also known as an electrically operated valve, is an automatic valve that removes the need for an engineer or operator to operate a valve manually. Solenoids operate using an electromagnetic solenoid coil to change the state of a valve from open to close or close to open. We have mainly two types of solenoid valves normally closed type and normally open type. A solenoid valve the one you can see on the screen is normally closed type, in this type of solenoid valve when the coil is energized, the valve gets open by the electromagnetic force produced by the coil.
As you can see it has two coil terminals, Its basic working principle is just like a relay, as in the case of a relay when we connect gnd and 12v with the relay coil pins, the relay operates, similarly, solenoid valve has also two coil terminals, and when these
the sensor I am using can detect co, co2,LPG, smoke, methane, etc
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Arduino Nano USB-C Type ( recommended):
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ESP32 WiFi + Bluetooth Module for iOT Projects (recommended), more IO pins, improved speed, and supports a Lipo Battery:
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Purchase links for Components with the best prices.
solenoid valve:
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smoke sensor MQ-2:
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1n4007 diode:
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10k Resistor:
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2n2222 NPN transistor
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12V SPDT Relay:
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One-Channel Relay Module:
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12v SPDT type 4-channel relay Module:
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