21st Century Learning and Teaching

While the new web-based build system was vital in keeping Arduino up to date with the way makers and educators use hardware, the announcement of an official command line interface is vital for professional developers.

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I purchased this Arduino LCD-Keypad shield from Amazon and it had terrible documentation. I made this video for anyone else looking for the pinout of this v1.0 board.

Download Data Sheet:

https://docs.google.com/file/d/0B4YAsbVrVvjlOG1oZURDNEdSWGc/edit

In this project you’ll create a standalone web server with an ESP8266 that displays the temperature and humidity with a DHT11 or DHT22 sensor using the Arduino IDE. The web server you’ll build can be accessed by any device that has a browser on your local network.

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Exchange any data between Blynk app and your hardware.

Virtual Pin is a concept invented by Blynk Inc. to provide exchange of any data between hardware and Blynk mobile app. 

Virtual pins are different than  Digital and Analog Input/Output (I/O) pins. They are physical pins on your microcontroller board where you connect sensors and actuators.

Blynk lets you control any hardware connected to Digital and Analog pins without having to write any additional code.

For example, if you need to turn On/Off LED connected to Digital pin, you don't have to write any code: 

1. Just use BlynkBlink code for your hardware. 
2. In the Blynk app - add Button Widget and set it to pin D8
3. That's it! No additional code is required. Simply press Play in the app.

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https://www.scoop.it/t/21st-century-learning-and-teaching/?&tag=Internet+of+Things

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This guide will help you understand how to get started using Blynk and give a comprehensive overview of all the features.

If you want to jump straight into playing with Blynk, check out Getting Started.

How Blynk Works

Blynk was designed for the Internet of Things. It can control hardware remotely, it can display sensor data, it can store data, vizualize it and do many other cool things.

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https://www.scoop.it/t/21st-century-learning-and-teaching/?&tag=Internet+of+Things

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Some Sketches require the OLED_I2C Library, here you can download it as a ZIP-File and include it through the Arduino IDE:

1) Click on "Sketch"

2) Click on "Include Library"

3) Click on "Add ZIP.Library..."

Have FUN and enjoy Coding!

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How to connect and program the Geekcreit 0.96 inch 4 pin white I2C OLED module with Arduino. OLED display based on a SSD1306 OLED driver IC.

In this tutorial a 0.96 inch monochrome OLED display from Geekcreit is connected or interfaced to an Arduino. Libraries are then installed and some example programs run which show how to use the display in an Arduino sketch.

The display connects to Arduino using only four wires – two for power and two for data, making the wiring very simple. The data connection is I2C (I²C, IIC or Inter-Integrated Circuit). This interface is sometimes called TWI (Two Wire Interface).

At the very lowest level, the Arduino Wire library is used to communicate with the display. Libraries are available that make it easy to start using the display right away to display text and graphics. These libraries are installed in this tutorial.

[Gust MEES] It works with THIS OLED <===> https://www.amazon.de/dp/B01L9GC470

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Here is a quick and easy little robot that can be built and assembled in about half an hour with the right tools and parts.

I didn't invent it. I saw a video of a thing like this on YouTube and thought 'Hey, that looks fun, I'll build one.'

So I grabbed some servos out of my junk box, an old cellphone battery I had kept in the hope of finding something cool to do with it, an arduino pro 3.3v that I had bought on a whim because I needed to reach the quota for free delivery and went to work.

An hour or so later, here it was!

Let's start with the basic assembly.

Cut off the mounting arm that's opposite the side where the wires come out on one of the servos (This will be your back servo). The back servo points down and the other forward. You can use glu or cable ties to keep them together.

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ESP8266 WiFi Weather Station with Color TFT Display We were playing around already with LED MATRIX's, devices to visualize measured values and/or texts. In this blog post (Tutorial) we will use a TFT Display (Thin-film-transistor liquid-crystal display) with touch screen to display a three (3) days weather forecast with moon phases. This…

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https://www.scoop.it/t/21st-century-learning-and-teaching/?&tag=ESP8266+WiFi+Module

Der NodeMCU ESP8266 ist wohl derzeit das Lieblings-Controller-Board vieler Bastler. Denn es vereint viele Vorteile unter einem Dach. Hier ein kleiner Auszug, was zum Erfolg des NodeMCU ESP8266 geführt hat:

• kompakt und klein
• WLAN on Board
• viel Speicherplatz
• USB-Schnittstelle (Bootloader) 
• lässt sich über Arduino IDE programmieren
• große Anzahl an Schnittstellen

Tja, und um genau diese Schnittstellen geht es hier in diesem Beitrag.

Hier zeigen wir Euch z.B. wo welche GPIO Ports liegen, wo ihr den Ground findet, an welcher Stelle das Board 3,3 Volt liefert. Welche PIN Stecker für RX und TX verwendet werden können – einfach alles, was man so über die PINs des NodeMCU ESP8266 wissen muss.

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Interested in oled? Explore 10 projects tagged with 'oled'. Find these and other hardware projects on Arduino Project Hub.

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In our previous blog post (Tutorial…), we were playing around with a LED MATRIX <===> First Steps with the Arduino-UNO R3 | Maker, MakerED, Coding | Scrolling Text with 8×8 LED MATRIX  <===> and we will continue to use the LED MATRIX, but this time with a Wi-Fi connection. We will use the module “ESP8266” which you can purchase worldwide around as it is very popular and it costs ONLY 7.49 €.

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https://howtomechatronics.com/tutoria... ► Find more details, circuit schematics and source codes here.

In this tutorial we will learn how the I2C communication protocol works and also we will make a practical example of it with the Arduino Board and a sensor which uses this protocol. You can watch the following video or read the written tutorial below.

Visit HowToMechatronics.com for more Tutorials, Tips, Projects and How It Works videos:
► https://howtomechatronics.com/

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RFID RC522 Tag-Card Reader with LCD1602-I2C - We were already playing around with LCD's in our previous tutorial <===> First Steps with the Arduino-UNO R3 | Maker, MakerED, Coding | Super Starter Kit UNO R3 Project | LCD and Sensors Project <===> but there we used the SPI-Bus, meaning: connecting 12 wires (Potentiometer connections included...)!! With the I2C Bus we need ONLY to connect 4 wires!!

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https://www.scoop.it/t/21st-century-learning-and-teaching/?&tag=I2C

https://www.scoop.it/t/21st-century-learning-and-teaching/?&tag=LCD

http://blog.mklec.com/how-to-use-iici2c-serial-interface-module-for-1602-lcd-display/

1.Vorwort zur Arduino Anleitung

Diese Anleitung soll als Grundlage zum Erlernen der Arduino-Plattform dienen. Sie soll Anfängern einen einfachen, interessanten und eng geleiteten Einstieg in die Arduino-Thematik geben. Die Anleitung orientiert sich dabei hauptsächlich an praxisorientierten Aufgaben mit einer theoretischen Einführung vorab. Diese sollte man vorher unbedingt lesen, um bei den späteren Praxisaufgaben nicht an Kleinigkeiten zu scheitern.

Diese Anleitung ist im Rahmen einer Unterrichtstätigkeit entstanden. Sie kann kostenlos zum Erlernen der Arduino-Plattform verwendet, jedoch nicht ohne Erlaubnis kopiert oder anderweitig verwendet werden. Die Anleitung wurde sorgfältig erstellt und wird kontinuierlich gepflegt, jedoch wird keine Garantie für die Richtigkeit und Vollständigkeit übernommen.

Für die praktischen Aufgaben sollte man mit einigen elektronischen Bauteilen versorgt sein. Auf dieser Internetseite können sie passende Arduino-Sets bestellen, die speziell auf diese Anleitung zugeschnitten sind.

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Aside from cool cat feeders, it is possible to find multiple maker projects for controlling garage doors, blind windows, smart locks, tracking cars, control temperature and humidity levels, and so on. However, the security aspect of these devices needs to take some extra attention, starting from the connection between the device and the Cloud infrastructure.

Most microcontrollers today are not powerful enough to handle secure connections, like SSL or TLS, so all the communication between the device and the server is open to attacks, like sniffing values, tacking device credentials, faking values, granting unauthorized access to physical facilities, unlocking doors, and many other possibilities. This way, securing the communications for all the Internet-connected devices should be a priority, especially if they can jeopardize our security or privacy.

The security of the Internet of Things does not only rely on secure communications, but it is a great start. The maker community must be aware of the security concerns of untrusted communications, and must have the appropriate resources to handle it. This way it is common to see different alternatives to offer secure communications in the microcontrollers, like porting SSL/TLS libraries to cheap devices like ESP8266, or device vendors that already integrates a crypto chip that process all this stuff by hardware, like the recent Arduino MKR1000.

In thinger.io we are concerned about this security aspect, so our cloud supports secure connections for any device with this capability. In the recent Arduino library update, starting from version 2.4.1, we have introduced support for the Arduino MKR1000, including secure TLS connections by default. Just start with the following sample sketch for the MKR1000, and you will have encrypted connections by default.

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Step by step tutorial on how to export projects from Blynk into your own apps that will work with any connected product you build.

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E-Ink. It powers everything from the YotaPhone 2 to the Amazon Kindle. It's simultaneously one of the most understated and futuristic display technologies around. And it's being put to use in devices and venues you've never even thought of. But what exactly is E-Ink, and how does it work?

That's a question we had for the folks at E-Ink Corporation, the brains behind the world's leading electrophoretic ink technology, and they were more than happy to answer it. They invited us to tour their Innovation Center and Headquarters facility in Massachusetts to get a firsthand look at the technology behind E-Paper Displays, as well as some historical context and a few sneak previews of where E-Ink is headed next. Join us for this quick tour, and then visit E-Ink yourself for more: http://www.eink.com/index.html

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GitHub is where people build software. More than 27 million people use GitHub to discover, fork, and contribute to over 80 million projects.

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Installing a Library on Windows 

Follow these steps to install a library in Windows.
Close the Arduino IDE
First make sure that all instances of the Arduino IDE are closed. The IDE only scans for libraries at startup. It will not see your new library as long as any instance of the IDE is open!

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FriendlyElec has released a $35 rival to the Raspberry Pi 3 B+, outdoing the better-known board with 2GB of memory, Gigabit Ethernet, and a more powerful GPU.

The NanoPi K1 Plus follows FriendlyElec's Nano Pi K2, released last year with similar dimensions to the Raspberry Pi 3 for $40.

The NanoPi K1 Plus shares similar specs to the Nano Pi K2 and maintains the Raspberry Pi's form factor, but offers double the RAM, Gigabit Ethernet, and 4K video playback.

The device also has the same 40-pin GPIO pin-header as the Raspberry Pi 3, so it should work with Raspberry Pi accessories and housings.

Instead of the NanoPi K2's 1.5GHz Amlogic processor, FriendlyElec opted for an Allwinner H5 quad-core 64-bit Cortex A53 processor that runs at 1.4 GHz as well as a six-core Mali450 GPU. The Raspberry Pi 3 B+ uses a 1.4GHz Broadcom BCM2837B0, Cortex-A53 ArmV8 64-bit SoC.

The NanoPi K1 features three USB 2.0 ports, one microUSB 2.0 port for power, a microSD slot, while wireless support includes 802.11 b/g/n.

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Many times to make any user interface or nicely display content, we use icons/images. In this Instructable, you will be displaying icons or logos or images...

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234 hardware projects made with ESP8266 ESP-01 from Everything ESP.

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784 Projects tagged with ESP8266

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In this project we’ll show you how to make a WiFi enabled, portable Weather Station using an ESP8266. LINKS BELOW! The software, written by Daniel Eichhorn, uses the Wunderground API to pull weather data. It shows the date, time, current weather conditions, 4-day forecast and even moon phases.

The user interface features lovely typography and icons that makes really a clean layout. The 2.4” TFT Feather Wing combined with the Adafruit Feather HUZZAH ESP8266 make assembling this project incredibly easy. Full Tutorial, Files and Code: https://learn.adafruit.com/wifi-weath...

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