What is an Arduino Shield?

Learn Programming and Electronics with Arduino

Learn Programming and Electronics with Arduino

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תוכן מסופק על ידי Programming Electronics Academy. כל תוכן הפודקאסטים כולל פרקים, גרפיקה ותיאורי פודקאסטים מועלים ומסופקים ישירות על ידי Programming Electronics Academy או שותף פלטפורמת הפודקאסט שלהם. אם אתה מאמין שמישהו משתמש ביצירה שלך המוגנת בזכויות יוצרים ללא רשותך, אתה יכול לעקוב אחר התהליך המתואר כאן https://he.player.fm/legal.

All About Change

1
Eli Beer & United Hatzalah: Saving Lives in 90 seconds or Less 30:20

לפני 17 ימים30:20

הפעל מאוחר יותר

רשימות

לייק

אהבתי

30:20

Eli Beer is a pioneer, social entrepreneur, President and Founder of United Hatzalah of Israel. In thirty years, the organization has grown to more than 6,500 volunteers who unite together to provide immediate, life-saving care to anyone in need - regardless of race or religion. This community EMS force network treats over 730,000 incidents per year, in Israel, as they wait for ambulances and medical attention. Eli’s vision is to bring this life-saving model across the world. In 2015, Beer expanded internationally with the establishment of branches in South America and other countries, including “United Rescue” in Jersey City, USA, where the response time was reduced to just two minutes and thirty-five seconds. Episode Chapters (0:00) intro (1:04) Hatzalah’s reputation for speed (4:48) Hatzalah’s volunteer EMTs and ambucycles (5:50) Entrepreneurism at Hatzalah (8:09) Chutzpah (14:15) Hatzalah’s recruitment (18:31) Volunteers from all walks of life (22:51) Having COVID changed Eli’s perspective (26:00) operating around the world amid antisemitism (28:06) goodbye For video episodes, watch on www.youtube.com/@therudermanfamilyfoundation Stay in touch: X: @JayRuderman | @RudermanFdn LinkedIn: Jay Ruderman | Ruderman Family Foundation Instagram: All About Change Podcast | Ruderman Family Foundation To learn more about the podcast, visit https://allaboutchangepodcast.com/ Looking for more insights into the world of activism? Be sure to check out Jay’s brand new book, Find Your Fight , in which Jay teaches the next generation of activists and advocates how to step up and bring about lasting change. You can find Find Your Fight wherever you buy your books, and you can learn more about it at www.jayruderman.com .…

לפני 8 שנים 9:34

MP4•בית הפרקים

If you are learning about Arduino, you have no doubt come across the term Arduino Shield. This tutorial will explain what Arduino Shields are, why they are awesome, and several things to consider when buying shields.

cool electronics ideas that you have.

Now the Arduino in and of itself is pretty amazing - you can do a lot of stuff with an Arduino alone. But when you want to start adding all types of cool technologies like bluetooth, wifi, RF, motor-drivers, etc. it can be pretty tricky; especially if you are new to electronics and programming.

Arduino shields take all the complexity of the hardware and reduce it to a simple interface. This allows you to get your idea up and running fast.

Now it's not just the hardware that shields take care of, in many cases, Arduino shields also have programming libraries associated with them. These libraries allow you to easily implement the hardware features available on the shield.

There are shields for all types of things - LCD shields, LED matrix shields, wifi and bluetooth shields, motor shields, power supply shields, geiger counter shields, there are even shields for cooking hot dogs. Chances are if you need to do something, a shield exists to get you up and running quick.

Shields plug right into the top of an Arduino. The black plastic rows of holes along the sides of an Arduino are called headers, and on the bottom of a shield, you have these long spiky pieces of metal, these are called pins. The pins on a shield line up with the header rows on an Arduino and fit snuggly (more on this later).

Buying an Arduino Shield? Think about this stuff:

Does it have good documentation?

Documentation is the fancy way of saying - “will they show me how to use this thing?” Basically, is there some type of tutorial or user manual or forum that talks about how to use the shield.

This is one of the biggest factors for me when it comes to buying an Arduino shield. For all the ease of use that a shield provides, if I don't know how to use it, it's about as a good as a rock.

Lucky for us, people who use Arduino tend to be awesome and do a great job writing about how to use stuff, so even if the manufacturer doesn't have good instructions, if people actually use the shield, then you will find a wealth of information online. But if you do a web search and it doesn't turn up much of anything useful, you might consider looking for another option.

Two US companies that provide superb documentation of the shields they make and sell are Adafruit Industries and Sparkfun.

Soldering may be required

Many shields are sold as kits, that means they are not fully assembled - and will require you to do some soldering. If you are buying from a reputable source, you should know this ahead of time, but it is worth double checking.

Sometimes manufacturers will offer the shield as a kit or fully assembled - I often go for the fully assembled option just to save time. If you have not soldered before, shields are usually a cinch to solder, so don't be intimidated - go get a cheap soldering iron and some solder and go for it!

Probably the most important thing when soldering a shield is making sure that the pins on the bottom of the shield are straight up and down, if they aren't they won't line up to the Arduino headers and be a major pain to connect.

Stackable or Not Stackable Arduino Shields

If you plan on stacking an Arduino shield with other shields, you will want to make sure it is stackable. If it doesn't have pin headers on the top of the shield, or they don't look aligned correctly (usually too narrowly spaced), than it is likely another shield cannot be stacked on top of it.

You might also run into a problem if components on the shield stick up too high to allow shields above from getting a snug fit. Manufactures of shields are getting more savvy to this issue, but you should always check.

Not all Arduino shields have the same pinout

Some older Arduino shields may not have all the pins to fill the header rows of an Arduino. This is because older versions of Arduino didn't have as many pin header slots. This usually isn't too much trouble, unless you needed to use those pins that are not connected on the shield.

If you have an older version of Arduino, then a shield you buy might have more pins than your Arduino has headers for - usually they are still physically compatible - this should not be anything to sweat about.

Matching Hardware and Software Versions

On a final note, if you are having trouble with a shield working, it worth checking to see if you are using the most current library version for your version of shield.

A great example is the near ubiquitous Adafruit motor shield. There is a hardware version 1 and a hardware version 2. There are two separate code libraries for these. If you are trying to run your new version of the hardware on the old version of the library - then you will likely run into troubles. It worth checking to see you have the correct library for the job.

I hope you found this tutorial helpful, please be sure to check out our free Arduino Crash Course (signup below) if you want to accelerate your learning.

61 פרקים

#Tech #Higher Education #Programming Electronics Academy #Podcasting Education

Learn Programming and Electronics with Arduino

What is an Arduino Shield?

Learn Programming and Electronics with Arduino

published לפני 8 שנים

שתפו

MP4•בית הפרקים

cool electronics ideas that you have.

Arduino shields take all the complexity of the hardware and reduce it to a simple interface. This allows you to get your idea up and running fast.

Buying an Arduino Shield? Think about this stuff:

Does it have good documentation?

Documentation is the fancy way of saying - “will they show me how to use this thing?” Basically, is there some type of tutorial or user manual or forum that talks about how to use the shield.

This is one of the biggest factors for me when it comes to buying an Arduino shield. For all the ease of use that a shield provides, if I don't know how to use it, it's about as a good as a rock.

Two US companies that provide superb documentation of the shields they make and sell are Adafruit Industries and Sparkfun.

Soldering may be required

Stackable or Not Stackable Arduino Shields

Not all Arduino shields have the same pinout

Matching Hardware and Software Versions

On a final note, if you are having trouble with a shield working, it worth checking to see if you are using the most current library version for your version of shield.

I hope you found this tutorial helpful, please be sure to check out our free Arduino Crash Course (signup below) if you want to accelerate your learning.

61 פרקים

#Tech #Higher Education #Programming Electronics Academy #Podcasting Education

Toate episoadele

Learn Programming and Electronics with Arduino

לפני 8 years8:11

8:11

Learn Programming and Electronics with Arduino

1
What to do when you just don't know :: Arduino, ADXL345 triple axis accelerometer and an RGB LED 14:04

לפני 8 years14:04

14:04

This lesson discusses what to do when you open an existing program and realize that you simply don't understand all the stuff that is going on. It also talks about using the ADXL345 triple axis accelerometer breakout board to control the hue of a Red-Green-Blue (RGB) LED.

Learn Programming and Electronics with Arduino

1
3 Ways to Use Acceleration in an Arduino Sketch 17:37

לפני 8 years17:37

17:37

This lesson covers three easy ways to implement some form of acceleration in your Arduino sketches. It will cover the following: Linear Acceleration Exponential Acceleration Messing Around with the Square Root function What is Acceleration? Acceleration is the rate of change of something over time. Acceleration would help describe things like: Have fast can a stopped car get to 88mph? If I do a wing-suit jump from the top of Mount Everest, how fast will I be when I am gliding over base camp? How can I gently slow down the movement of a mechanical servo before it comes to rest? We can implement acceleration when programming Arduino quite easily with just a couple lines of code. The basic concept is that a variable will need to change - how it changes over the course of the sketch is what we are interested in. Below are three examples of how we can code change in variables so they display acceleration. Linear acceleration Linear acceleration is a constant rate of change. It can be represented by a sloped line on an x-y axis. A simple way to use it is to increment or decrement a variable every time through a loop like below... for (int i = 0; i < 10; i++) { //accel gets increasingly smaller as for loop continues accel = accel - 100; }//close for You can see in the code above, that each time through the 'for loop', the accel variable is decreasing by 100. If accel started at 1000, this is what accel would look like with respect to the number of iterations of the for loop. You can see that the accel variable decreases at a set rate over time in a linear fashion. Exponential Acceleration Exponential acceleration changes over time too, but it does so more dramatically (It's basically a drama queen). At first the rate of change in the variable is small, but once it begins to increase it really takes off! You can use the power function built into the Arduino IDE to make a variable change exponentially. The power function syntax is quite easy. pow( base, exponent ) The parameter base is the number that get raised to the power of the exponent . Like 2 to the 5th power. Below is an example of how you might code it to change a variable exponentially over the course of a 'for loop'. for (int i = 0; i < 10; i++) { //accel grows exponentially as the for loop continues accel = pow(2, i); }//close for Looking at a chart of accel over the course of the 'for loop', we can see that the way it changes is much different than linear acceleration: The theme for exponential growth is that is starts out slow, but once it starts going it really get's going! Using the Square Root Function for Acceleration The square root function can also provide some flavor to the output from your Arduino. It's syntax is simple: sqrt( x ) It returns the square root of the number or variable that you put in the parenthesis. Below is an easy way to use it in a 'for loop': for (int i = 0; i < 6; i++) { //accel quickly decreases through the loop accel = sqrt(accel); }//close for Let's look at how accel changes over the course of the for loop(let's say it started at 10,000): You can see the a rapid deceleration in the value of the accel variable of the 'for loop'. Practice With Acceleration: If you want to take a look at what these types of acceleration will do in "real" life, then set up the circuit below. You Will Need: (10) LEDs (10) 220 Ohm Resistors (1) Jumper Wire Arduino Board Bread Board Black Marker Set Up The Circuit: Start by by placing one resistor at pin 2 on your Arduino. Connect the other end of the resistor to the breadboard and then connect the long leg of the LED to the resistor. Place the short leg of the LED in the outer ground rail of the bread board. Then add 9 more resistors and LEDs across - you should stop at Pin 11 on the Arduino. Then add a jumper wire from GND on the Arduino to the shared ground on the breadboard. (All LEDs not pictured). That is pretty much it for the circuit. Below are the code examples for the different ways to program acceleration that we talked about: Here is the code for the linear acceleration: /* Linaer ( Constant ) Acceleration The circuit: * LEDs from pins 2 through 11 to ground created 2006 by David A. Mellis modified 30 Aug 2011 by Tom Igoe Modifeid 21 Jul 2014 by Michael James This example code is in the public domain. http://www.arduino.cc/en/Tutorial/Array */ //Declare and initialize variables // The higher the number, the slower the timing. int timer = 1000; // an array of pin numbers to which LEDs are attached int ledPins[] = { 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; // the number of pins (i.e. the length of the array) int pinCount = 10; void setup() { // the array elements are numbered from 0 to (pinCount - 1). // use a for loop to initialize each pin as an output: for (int thisPin = 0; thisPin < pinCount; thisPin++) { pinMode(ledPins[thisPin], OUTPUT); } //Start Serial Communication Serial.begin(9600); }//close setup void loop() { // loop from the lowest pin to the highest: for (int thisPin = 0; thisPin < pinCount; thisPin++) { // turn the pin on: digitalWrite(ledPins[thisPin], HIGH); delay(timer); // turn the pin off: digitalWrite(ledPins[thisPin], LOW); //decrement timer (EASY WAY) timer = timer - 100; //let's take a look at the numbers via the serial monitor window (Tools > Serial Monitor) Serial.print("Back ... LED #"); Serial.print(thisPin); Serial.print(" = "); Serial.println(timer); }//close for //reset timer for next for loop timer = 1000; // loop from the highest pin to the lowest: for (int thisPin = pinCount - 1; thisPin >= 0; thisPin--) { // turn the pin on: digitalWrite(ledPins[thisPin], HIGH); delay(timer); // turn the pin off: digitalWrite(ledPins[thisPin], LOW); //decrement timer timer = timer - 100; //let's take a look at the numbers via the serial monitor window (Tools > Serial Monitor) Serial.print("Forth ... LED #"); Serial.print(thisPin); Serial.print(" = "); Serial.println(timer); }//close for //reset timer for next for loop timer = 1000; }//close loop Here is the code for the exponential acceleration: /* Exponential Acceleration The circuit: * LEDs from pins 2 through 11 to ground created 2006 by David A. Mellis modified 30 Aug 2011 by Tom Igoe Modifeid 21 Jul 2014 by Michael James This example code is in the public domain. http://www.arduino.cc/en/Tutorial/Array */ //Declare and initialize variables // The higher the number, the slower the timing. float timer = 1000; // an array of pin numbers to which LEDs are attached int ledPins[] = { 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; // the number of pins (i.e. the length of the array) int pinCount = 10; void setup() { // the array elements are numbered from 0 to (pinCount - 1). // use a for loop to initialize each pin as an output: for (int thisPin = 0; thisPin < pinCount; thisPin++) { pinMode(ledPins[thisPin], OUTPUT); } //Start Serial Communication Serial.begin(9600); }//close setup void loop() { // loop from the lowest pin to the highest: for (int thisPin = 0; thisPin < pinCount; thisPin++) { // turn the pin on: digitalWrite(ledPins[thisPin], HIGH); delay(timer); // turn the pin off: digitalWrite(ledPins[thisPin], LOW); //decrement timer timer = pow(2, thisPin); //let's take a look at the numbers via the serial monitor window (Tools > Serial Monitor) Serial.print("Back ... LED #"); Serial.print(thisPin); Serial.print(" = "); Serial.println(timer); }//close for //reset timer for next for loop // loop from the highest pin to the lowest: for (int thisPin = pinCount - 1; thisPin >= 0; thisPin--) { // turn the pin on: digitalWrite(ledPins[thisPin], HIGH); delay(timer); // turn the pin off: digitalWrite(ledPins[thisPin], LOW); //decrement timer timer = pow(2, thisPin); //let's take a look at the numbers via the serial monitor window (Tools > Serial Monitor) Serial.print("Forth ... LED #"); Serial.print(thisPin); Serial.print(" = "); Serial.println(timer); }//close for //reset timer for next for loop timer = 1000; }//close loop Here is the code for messing around with the square root: /* square root The circuit: * LEDs from pins 2 through 11 to ground created 2006 by David A. Mellis modified 30 Aug 2011 by Tom Igoe Modifeid 21 Jul 2014 by Michael James This example code is in the public domain. http://www.arduino.cc/en/Tutorial/Array */ //Declare and initialize variables // The higher the number, the slower the timing. float timer = 1000; // an array of pin numbers to which LEDs are attached int ledPins[] = { 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; // the number of pins (i.e. the length of the array) int pinCount = 10; void setup() { // the array elements are numbered from 0 to (pinCount - 1). // use a for loop to initialize each pin as an output: for (int thisPin = 0; thisPin < pinCount; thisPin++) { pinMode(ledPins[thisPin], OUTPUT); } //Start Serial Communication Serial.begin(9600); }//close setup void loop() { // loop from the lowest pin to the highest: for (int thisPin = 0; thisPin < pinCount; thisPin++) { // turn the pin on: digitalWrite(ledPins[thisPin], HIGH); delay(timer); // turn the pin off: digitalWrite(ledPins[thisPin], LOW); //decrement timer timer = sqrt(timer); //let's take a look at the numbers via the serial monitor window (Tools > Serial Monitor) Serial.print("Back ... LED #"); Serial.print(thisPin); Serial.print(" = "); Serial.println(timer); }//close for //reset timer for next for loop timer = 1000; // loop from the highest pin to the lowest: for (int thisPin = pinCount - 1; thisPin >= 0; thisPin--) { // turn the pin on: digitalWrite(ledPins[thisPin], HIGH); delay(timer); // turn the pin off: digitalWrite(ledPins[thisPin], LOW); //decrement timer timer = sqrt(timer); //let's take a look at the numbers via the serial monitor window (Tools > Serial Monitor) Serial.print("Forth ... LED #"); Serial.print(thisPin); Serial.print(" = "); Serial.println(timer); }//close for //reset timer for next for loop timer = 1000; }//close loop I hope the lesson was helpful. The idea of adding acceleration to a sketch can seem a bit intimidating at first, but as you can see, it turns out to be a rather simple addition of code. Try on Your Own Challenge: Can you make the fade amount of an LED accelerate/deccelerate? Can you add a potentiometer to the circuit above and find a way to control the amount of acceleration - either linear, exponential or otherwise.…

Learn Programming and Electronics with Arduino

לפני 8 years5:45

5:45

Learn Programming and Electronics with Arduino

1
What can you do with Arduino? Let's get pumped! 3:12

לפני 8 years3:12

3:12

I want to get you excited about the possibilities when you learn some basic programming and electronics that drive the Arduino. It is literally amazing what you can do.

Learn Programming and Electronics with Arduino

1
Prelude to the Arduino Crash Course 1:14

לפני 8 years1:14

1:14

The premise of our course is that Arduino is a tool to assist in prototyping your imagination.

Learn Programming and Electronics with Arduino

1
Arduino Lessons from Programming Electronics Academy 2:22

לפני 8 years2:22

2:22

This is the introduction for the following lessons on the programming and electronics of Arduino. Michael talks about the following lessons, the Arduino Crash Course, and the premium Arduino Course for Absolute Beginners.

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