In this project, we will go over how to build a hydrogen gas sensor circuit with an arduino. The hydrogen gas sensor we will use is the MQ-8 sensor. This is a sensor that is sensitive to effects of hydrogen gas. Hydrogen gas (H2), at room temperature and under standard pressure conditions, is tasteless, odorless, …
MQ-8 Hydrogen Gas Sensor Circuit Built with an Arduino Read More »
Up until now, we have talked about working with a lot of low-power devices. Sensors, LEDs, ICs, and the like are all capable of being powered directly from your Arduino, but as many awesome 5 and 3.3v components as there are, eventually you will find yourself holding a 12v solenoid, motor, or light and wondering “How the heck am I supposed to …
In this project we are going to make an IOT Based Air Pollution Monitoring System in which we will monitor the Air Quality over a webserver using internet and will trigger a alarm when the air quality goes down beyond a certain level, means when there are sufficient amount of harmful gases are present in the air like CO2, …
IOT based Air Pollution Monitoring System using Arduino Read More »
I know… you are probably thinking “Another Thermometer! How many do you need to cover?” – Well… All of them. But really, they all have something different to offer. For instance this guy, the DS18B20, has a unique serial-number sent with it’s data, so if you needed to have 50 of these on one bus, you …
The TMP102 is a very simple, yet accurate, ambient temperature sensor which is capable of detecting .0625ºC changes between -25 and +85°C, with an accuracy of 0.5°C. And the real kicker… It does all of this while only consuming 10µA (10 millionths of an amp). The thing is quite tiny, so SparkFun has put it on a breakout board to make things …
I came pretty close to calling this one “Magnets, How do they work?” But I thought that might confuse more than it would amuse. All jokes aside, hall effect sensors are pretty cool, and also pretty simple to use, but there are a few types you may not know about and I figured it would be a …
A Strange Attraction. Various Hall Effect Sensors Using Arduino Read More »
Many fun environmental sensors need a hardware interrupt. With the MKR1000, you no longer need to choose! You get I2C, analog ins too! Things used in this project Hardware components Arduino MKR1000 × 1 MOD-1016 Lightning Sensor × 1 DFRobot MQ-9 Gas Sensor × 1 Adafruit Humidity and Temperature Sensor × 1 Adafruit Pressure/Altitude/Temperature Sensor …
Multiple mode Environmental Sensor Deck with MKR1000 Using Arduino Read More »
An oil container that can automatically order new oil via Amazon DRS when the oil level in the container is low. Things used in this project Hardware components Arduino MKR1000 × 1 Ultrasonic Sensor – HC-SR04 (Generic) × 1 Jumper wires (generic) × 1 Software apps and online services Arduino IDE Amazon Web Services AWS …
Sometimes you want everything in the program to stop while a given condition is true. You can do this using a while loop. This example shows how to use a while loop to calibrate the value of an analog sensor. In the main loop, the sketch below reads the value of a photoresistor on analog pin 0 and …
How to use a while loop to calibrate the value of an analog sensor using Arduino Read More »
This tutorial shows you how to use a Piezo element to detect vibration, in this case, a knock on a door, table, or other solid surface. A piezo is an electronic device that generates a voltage when it’s physically deformed by a vibration, sound wave, or mechanical strain. Similarly, when you put a voltage across a piezo, it vibrates …
How to use a Piezo element to detect vibration using Arduino Read More »
