An infrared (IR) distance sensor is a sensor that can measure distance from a solid or physical object. An infrared distance sensor does this through light waves. It sends out infrared light and waits to receive it back at the receiver end. If it receives back the infrared light, this means that the light waves
How to Build an Infrared Distance Sensor Circuit Continue Reading
In this project, we will go over how to build a carbon monoxide sensor circuit with an Arduino. The sensor we will utilize is the MQ-7 sensor for detecting carbon monoxide. This sensor is responsive to the impacts of CO. Carbon monoxide (CO) is a highly hazardous gas that lacks odor, color, and taste, making
MQ-7 Carbon Monoxide Sensor Circuit Built with an Arduino Continue Reading
An ultrasonic distance sensor is a sensor that can measure distance from a solid or physical object. An ultrasonic range finder does this through sound waves. It sends out high-frequency sound waves and then waits to listen back for these sound waves. If it has heard back these sound waves, then this means the sound
How to Build an HC-SR04 Distance Sensor Circuit Continue Reading
In this project, we will go over how to build a servo motor circuit using an arduino. This is a circuit which can control and rotate a servo motor to rotate a certain amount of degrees. Specifically, in our circuit, we will make it so that the servo motor rotates 180 degrees and then stops
How to Build a Servo Motor Circuit (with Arduino) Continue Reading
In this project, we will show how you can build an ohmmeter using an arduino. An ohmmeter is a device that can measure resistance. Most of the times now, ohmmeters aren’t standalone devices but appear as one of type of measuring device amongst many in a multimeter. An advanced multimeter, today, would have an ohmmeter,
How to Build an Ohmmeter Using an Arduino Continue Reading
In this project, we will go over how to build an alcohol sensor with an arduino. The alcohol sensor we will use is the MQ-3 sensor. This is a sensor that is not only sensitive to alcohol, particularly ethanol, which is the type of alcohol which is found in wine, beer, and liquor. This type
MQ-3 Alcohol Sensor Circuit Built with an Arduino Continue Reading
In this project, we will go over how to build a smoke sensor circuit with an arduino board. The smoke sensor we will use is the MQ-2. This is a sensor that is not only sensitive to smoke, but also to flammable gas. The MQ-2 smoke sensor reports smoke by the voltage level that it
MQ-2 Smoke Sensor Circuit Built with an Arduino Continue Reading
In this project, we will build a liquid level gauge circuit with an arduino. This is a circuit in which a liquid level can be monitored through a gauge. We read the liquid level from the gauge (low, medium, or high), just as you see above. With a microcontroller such as the arduino, building this
How to Build a Liquid Level Gauge Circuit with an Arduino Continue Reading
In this project, we will go over how to connect an analog volt panel meter to an Arduino so that it can measure and give us a readout of light striking the circuit. In this way, the circuit will function as a light meter. When there is a lot of light shining on the circuit,
Arduino Light Meter Circuit Continue Reading
In this project, we are going to build a soil moisture sensor with an Arduino microcontroller. A soil moisture sensor, also called a hygrometer, measures the amount of moisture, or water, in the soil. Therefore, we can tell whether the soil has enough moisture or not. So it is a good diagnostic tool for caring
How to Build a Soil Moisture Sensor Circuit with an Arduino Continue Reading
