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Arduino Tutorials

18 posts
ayrad

hello word

Posted by ayrad Apr 19, 2019
good ...
I nearly bought this kind of thing, but then realised I had all the parts I needed to make it myself, which is half the fun, right?!   This video shows it in action;     What I'm using in this build is;   Part Approx Price 24 LED Ring £2 Arduino Nano £1.75 Breadboard, button, potentiometer, and wires £1.25   The components are wired up like this;     And here's the code (uses the Adafruit neopixel library);   #include <Adafruit_N ...
Material preparation LinkNode D1 x 1 Arduino IDE Step1. Login  linksprite.io ,and record the “Device ID” and “API key” 1. Register www.linksprite.io and Login this account 2. My Profile -> API key   3. My device->Create DIY Device Enter Device Name,Device Type , Group Name , the device number is 00, device name and device grouping can be any.Note: Device Type must be selected 00(Custom device type) .Now you can see “test” in My Devices, ...
SummaryDHT22 module applies specific digital blocks collection technology and temperature and humidity sensing technology to ensure that products with high reliability and excellent long-term stability. Sensor comprises a capacitive humidity sensing element and a high-precision temperature component, and with a high-performance 8-bit microcontroller connected. Therefore, the product has excellent quality, fast response, anti-interference ability, high cost and so on.  Measurable temperature ...
LinkNode R4 is an open source 4-Channel relay controller which is powered by the ESP8266 WiFi SoC. The following will introduce how to use Android APP to control the LinkNode R4. Steps1. Install Android APP Download the APK file from the github and install it. 2. Login LinkSpriteIO If you never register an account on LinkSpriteIO, please enter Email and your password, then click the SIGN IN button If you have an account on LinkSpriteIO, please enter Email and your password, then click the REGI ...
In certain cases you may need to use motors for different purposes. Depending on the experiment or the device you are building, the type of motor to use can be different. In this series of posts I will show you how to use those motors with Arduino.   Servo Motors Servo motors are motors for which you can control accurately enough the speed and the angle of rotation. They can be used to precisely move parts in your device. For examples, in physics experiment you can use a servo motor to ho ...
organtin

The RC circuit

Posted by organtin Mar 4, 2016
This time I am going to share with you an amazingly simple experience that is made possible using just an Arduino UNO board, a resistor and a capacitor. The RC circuit is a classic circuit in physics teaching and is composed by just a resistor R and a capacitor C in series. For details you can look at the Charging a Capacitor page of the HyperPhysics pages. Pupils study the charging and discharging of the capacitor when the circuit is connected to a battery. A rather simple mathematics gives the ...
Hello guys,   I've created a video tutorial about saving and sending Arduino logs via email and Twitter by using Python script and wanted to share it with you. You don't have to know Python to do it, all that is required is changing few variables so that the script can communicate with your email and Twitter accounts. The video includes installation of required software, as well as short code summary. Here's the video:   ...
In this post I am going to show how to use an Arduino board and BitVoicer Server to control a few LEDs with voice commands. I will be using the Arduino Micro in this post, but you can use any Arduino board you have at hand.       The following procedures will be executed to transform voice commands into LED activity:   Audio waves will be captured and amplified by the Sparkfun Electret Breakout board; The amplified signal will be digitalized and buffered in the Arduino ...
A recent post appeared on the element14 community blog on the difference between different kind of motors led me to write this post. I am going to describe how to control a DC motor using Arduino UNO boards with a motor shield. There is a variety of methods to use an Arduino board to run a motor: they differ in complexity and cost. Using a motor shield makes running a motor relatively easy, even if it may be a bit expensive. However, the motor shield can drive other kind of motors and soon or la ...
My previous post was devoted to the illustration of a digital magnetoresistive sensor. A digital sensor provides just two states: on and off. Such sensors, then, can only tell you if there is a strong enough magnetic field close to the sensor or not.   In this post I'm going to illustrate the usage of a digital compass, namely a device from Digilent called PmodCMPS, to measure the intensity of a magnetic field. The device uses the HMC5883L digital compass IC from Honeywell to measure the t ...
markvenn

SMS to light an LED!

Posted by markvenn Apr 7, 2015
Hi I have been playing with my Uno and GSM shield to try to see if I can get the real world to react to a good old fashioned SMS text. In these days of 3G and 4G data rates, I wanted to show that we don't have to have the latest toys to interact with the real world. So, to start I am using a common cathode RGB LED with a first gen Uno with an R3 GSM shield wired up as below. (Please imagine an Uno underneath this shield :-)) So, the idea is to react to the contents of an incoming text mess ...
Arduino is an open source electronics hardware and software designed for hobbyists, Makers, tinkerers and professionals to build projects from the simple "blinking LED" to a laser tripwire doorbell. Join Ardunio expert, Jeremy Blum as he presents this 15-part series on Arduino from element14 Community!   Tutorial 01 for Arduino: Getting Acquainted with Arduino Tutorial 02 for Arduino: Buttons, PWM, and Functions Tutorial 03 for Arduino: Electrical Engineering Basics Tutorial 04 for Ar ...
  What I am presenting in the following set of videos and tutorials is a means to an end. Over the last many months I have answered many times the same questions and seen similar mistakes in programming   I am not necessarily implying what I am going to present will be perfect, it wont. But it will be tested and re-usable and can be taken and applied to your project if you want.   At a minimal I hope it will allow you to learn rapidly some techniques and practices that will all ...
The "hello world" of the Arduino is the blink sketch. This demonstrates that your board is working by blinking an LED, typically the on-board LED attached to pin13 but it has a problem. The code uses the "delay" function which waits the desired number of milliseconds before continuing with the next line of the code.   int led = 13; void setup() {                  // initialize the digital pin as an output. & ...