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The MQ7 sensor’s sensitivity and selectivity allow it to effectively detect and measure carbon monoxide levels, making it a crucial tool for applications such as gas leakage detection, safety systems, and environmental monitoring. By interfacing the MQ7 sensor with appropriate electronic circuits and microcontrollers like Arduino, you can create systems that provide real-time monitoring and prompt alerts in the presence of hazardous CO concentrations. It needs a bit of time to warm up in order to work correctly.

The breakout board works with both digital (DO) and analog signals (AO). The digital output is obtained by setting a threshold value with a potentiometer. The analog output will differ depending on the intensity of the gas.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Two mounting holes enable easy mounting to surfaces. The board comes with four male headers that need to be soldered.

Humans can detect many scents, but can have difficulties when it comes to differentiating gases. That’s why we use sensors like MQ6. It detects LPG and butane in the air. When heated to the optimum working temperature, it detects changes in air concentrations very quickly between 200 and 10000 ppm.

The DO pin stands for digital out. AO stands for analog out. The digital output is obtained by setting a threshold value using the potentiometer. The analog output will depend on the intensity of the gas around the sensor.

Product usage tips:

Preheating the sensor to the optimal working temperature takes 24 hours. The LED on the board will glow when gas is detected. It will remain off when it’s not. The board has two mounting holes for easy attachment to the project. It comes with four pins that need to be soldered.

You can use the board for years due to its long life. To prevent damage to the sensor, it should not be dipped in water or frozen. Highly corrosive gases will render the sensor useless. Cooking fumes and cigarette smoke will interfere with the sensor.

Is your office near a high-traffic area? Are you concerned about the amount of natural and liquefied petroleum gases in your work environment? The MQ5 is a simple-to-use sensor to put your mind at ease. It detects gas particles very quickly between 200 and 10000 ppm.

The breakout board works with both digital (DO) and analog signals (AO). The digital output is obtained by setting a threshold value with a potentiometer. The analog output will differ depending on the intensity of the gas.

Product usage tips:

The sensor takes 24 hours to preheat to optimal working temperature. When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Two mounting holes enable easy mounting to surfaces. The board comes with four pins that need to be soldered.

The breakout board boasts a long life so you don’t have to worry about it suddenly breaking. Submerging the sensor underwater and freezing it will damage it beyond repair. Highly corrosive gases will also damage the sensor.

Have you ever wondered how much natural gas and methane are in your living room? You can easily measure that! The MQ4 breakout board is a simple-to-use sensor that detects the natural gas and methane (CH4) in the air. Once heated to working temperature, it detects changes in air concentrations very quickly between 200 and 10000 ppm.

On the through-holes, the DO stands for digital out and AO for analog out. The digital output is obtained by setting a threshold value using the potentiometer. The analog output will depend on the intensity of the gas around the sensor.

Product usage tips:

The sensor will take 24 hours to preheat to working temperature. The LED on the board will glow when gas is detected, and remain off when it’s not. The board can easily be secured in place using the two mounting holes. It comes with four pins that need to be soldered.

Due to its long life, you can use this board for years without much of a thought. Dipping the sensor in water and freezing it will damage it, so avoid doing that. Highly corrosive gases will weaken it significantly, making it useless.

MQ sensors, including the MQ2 sensor, have the capability to detect various gases. The MQ2 sensor is specifically designed to detect combustible gases such as LPG (liquefied petroleum gas), butane, propane, methane, alcohol, hydrogen, and smoke. These gases are commonly found in residential, industrial, and automotive environments. The sensor’s sensitivity and responsiveness enable it to detect even trace amounts of these gases, making it a valuable tool for gas leakage detection, fire detection, and air quality monitoring applications. It takes a short time to heat up in order to work correctly.

The breakout board works with both digital (DO) and analog signals (AO). The digital output is obtained by setting a threshold value with a potentiometer. The analog output will differ depending on the intensity of the gas.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Two mounting holes enable easy mounting to surfaces. The board comes with four pins that need to be soldered.

WS2812B is an extremely interesting LED that can emit light in red, green or blue – or any combination of these three colors, able to show a total of approximately 16 million different colors. On this board diodes are arranged in a circle. They are controlled by a single pin with only few lines of code from Arduino IDE. That’s possible thanks to the integrated controller inside the LED itself!

This small and simple module gives us a translation of logic level between two signals. In layman’s terms, if we take a signal with logical “unit” on 5V convert into a signal which logical “unit” has on 3.3V this module will help us. Something like this is useful in this case if we want to achieve communication between two devices from whom one works on 5V and the other on 3.3V, or any other combination of voltages. Directly connecting we would “burn” a device that works on 3.3V and a module gives us to avoid that.

This board is specialized for signal conversion for any communication protocol, and for this conversion, it uses a special integrated circuit that enables communication at high speeds.

• Max. voltage: 30V
• Number of channels: 4
• Communication protocol: any besides I2C
• Dimensions: 22 x 22mm

ADC (Analog Digital Converter) is a device that reads analog signals (just like the analogRead () function in Arduino IDE) and converts them into digital signals that can be read by a microcontroller. This breakout is based on the ADS1015 ADC, which reads values in 12-bit resolution, receives a maximum of 3.3V on its inputs and has a total of 4 channels (which can also be used as two differential). Works great with any microcontroller at 5V. It has 2 easyC connectors for easier connection on I2C communication.

A digital potentiometer is a device identical to a potentiometer, except that instead of a physical rotating part that adjusts the resistance, it uses digital communication. Namely, the resistance of the digital potentiometer is adjusted via I2C communication.

Our module is based on the MCP4018 IC which has a total of 128 steps between 0 and 100k resistance values. This would mean that it is capable of doing resistance steps of approximately 781 ohms. It is controlled via I2C which makes it extremely easy to use.

A digital potentiometer is a device identical to a potentiometer, except that instead of a physical rotating part that adjusts the resistance, it uses digital communication. Namely, the resistance of the digital potentiometer is adjusted via I2C communication.

Our module is based on the MCP4018 IC which has a total of 128 steps between 0 and 50k resistance values. This would mean that it is capable of doing resistance steps of approximately 390ohms. It is controlled via I2C which makes it extremely easy to use.

A digital potentiometer is a device identical to a potentiometer, except that instead of a physical rotating part that adjusts the resistance, it uses digital communication. Namely, the resistance of the digital potentiometer is adjusted via I2C communication.

Our module is based on the MCP4018 IC which has a total of 128 steps between 0 and 10k resistance values. This would mean that it is capable of doing resistance steps of approximately 78ohms. It is controlled via I2C which makes it extremely easy to use.

Joystick module is well known to all – it is identical to the one found in the PlayStation2 joystick. Whether you are making a game with a microcontroller or want more freedom while navigating a joystick module will come handy.

It reads X and Y position of the joystick knob (used for controlling) and whether the joystick is being pressed down. X and Y values are shown in the form of analog values while reading off if the joystick is pressed or not is shown in the form of digital value (HIGH/LOW; it has pull-up resistor).

If you are working with audio and need easy access to all the pins of the 3.5mm connector, this breakout makes it possible. It accepts a male 3.5mm connector, in a 4-pin version, and allows access to all connector pins on the header.

Dimensions: 22 mm x 22 mm
Board connector: 3.5mm female, accepts 3.5mm male
Connections: ground, speaker right, speaker left, microphone
Mounting holes: 2

If you need a simple and stable power source on your breadboard, this board is here to help. Just give it some other power source via DC port or USB-C, and it gives you 3V3, 5V or 12V discretely to the power lines on the experimental. The output voltages are adjustable for both sides via switches. It also has a power LED, ignition switch and automatic power source selection (if both are present, it will be powered via the DC jack).

*12V is only available when used with a DC jack with 12V power supply

A PIR (passive infrared) motion sensor is a device that detects physical movement within its field of vision by sensing changes in infrared radiation. This sensor works on the principle of detecting thermal thermal signals emitted by objects, mainly warm-blooded creatures like humans. The “passive” in the name refers to the fact that the sensor itself does not emit or radiate any energy for detection.

Easily connects to Dasduino/Arduino via digital pin. When it detects movement, it sets the output digital pin to HIGH. The angle that the sensor “sees” is 100 degrees and reaches up to 5 meters. It has a potentiometer for delay (how often to check for movement).

It is often used in a variety of applications, including home security systems, automatic lighting, and energy management, among others.

The hall effect sensor (Hall Effect sensor) will be able to detect the magnetic field in its vicinity thanks to the aforementioned physical law. A magnetic field that can be created by a magnet, a current flowing through a conductor or some third source, the Hall effect sensor will recognize each. This sensor has a programmed threshold at which it will change the state of its output signal, so it is a sensor with a digital output.

The hall effect sensor (Hall Effect sensor) will be able to detect the magnetic field in its vicinity thanks to the aforementioned physical law. A magnetic field that can be created by a magnet, a current flowing through a conductor or some third source, the Hall effect sensor will recognize each.

This sensor has a programmed threshold at which it will change the state of its output signal, so it is a sensor with a digital output. Through the easyC connectors, it enables a simple connection with the microcontroller.

This sensor has two pieces – the rain sensor and the simple sensor. The rain sensor has nickel-coated lines on both sides. It measures moisture and outputs the data to the simple sensor that reads it. The simple sensor comes with easyC connectors onboard, which enables quick and easy connection with Dasduino microcontroller boards.

With the easy-to-use simple rain sensor, farmers can save water in irrigation. The sensor will alert them to shut down the water supply when it senses rain. It can even act as an automatic on and off switch, like turning on wipers on a car when it senses rain.

This module is a phototransistor that is capable of detecting infrared radiation. Since fire radiates a large number of infrared rays, this sensor will detect them, but this is not its only application. Wherever there are infrared waves, the sensor will detect them (including those from the sun). Using the built-in comparator on its outputs gives either digital (HIGH / LOW) or analog (0V-5V) signals, depending on the intensity of the IR radiation.

Light is one of the most important things in the life of most living beings. Because of this, it is common to work with light sensors when learning about electronics. The simple light sensor features a light-dependent resistor (LDR) and a sensor on a small breakout board for easier connection. As the name suggests, the LDR will change its resistance depending on the amount of light it’s exposed to. The amount of light and resistance are inversely proportional. The more light it’s exposed to, the less resistance it will have. Thus, if there’s more light, the board will have a resistance of a few hundred Ohms. If the resistor is in the dark, it will have a resistance of several thousand Ohms.

The main benefit of this board is ability to give analog and digital output. By setting the potenciometer on the board, you are able to get digital signal at the DO pin when signal crosses certain value, while analog values will be present on the AO pin at all times.

On this module, there is a component, a phototransistor, which is capable of detecting infrared radiation. Since fire emits a large amount of infrared radiation, this sensor will detect it, but that is not its only application. Wherever there are IR (infrared) waves, this sensor will detect them, including from solar radiation.

The simple sensor has easyC connectors, which enables quick and easy connection with Dasduino microcontroller boards.

Light is one of the most important things in the life of most living beings. This is why it is common to work with light sensors when learning about electronics. A simple light sensor has a light dependent resistor (LDR) and sensor on a breakout board for easy wiring. The simple sensor comes with easyC connectors onboard, which enables quick and easy connection with Dasduino microcontroller boards.

As the name suggests, an LDR will change its resistance depending on the amount of light it is exposed to. The amount of light and resistance are inversely proportional. The more light it is exposed to, the less resistance it will have. So if there is more light, the board will have a resistance of several hundred Ohms. If the resistor is in the dark, it will have a resistance of several thousand Ohms.

How many times have you watered your plants and feared you’re overdoing it? With the simple soil humidity sensor, those worries are a thing of the past! This two-part sensor is straightforward to use. The two exposed prongs go into the soil and send the humidity information to the sensor via the connected wire. The more water is in the ground, the better the results will be.

The two pieces are connected with the provided JST-SH 2-pin cable. The sensor uses the LM393 differential comparator. The main benefit of this board is ability to give analog and digital output. By setting the potentiometer on the board, you are able to get digital signal at the DO pin when signal crosses certain value, while analog values will be present on the AO pin at all times.