rfduino lcd panel library for sale

This is the RFduino Dev Kit, a great duo of products in one box to help you get you started with and teach you the basics of RFduino. Inside this kit you will find two RFduino boards, the DIP mainboard and the USB shield. When attached, these two boards will be able to connect to the USB port on your computer and get your code through the Arduino IDE onto the RFduino DIP board.

The RFduino is a Bluetooth 4.0 Low Energy BLE RF Module with Built-In ARM Cortex-M0 and RFD22301 SMT module for rapid development and prototyping projects. The RFduino operates at 3V and 18mA (4uA ULP), transmits of a 2.4 GHz band, and offers 128kb of flash memory with 8kb of ram. Via a Bluetooth connection with your iOS device you even run a series of free apps to control various shields through the RFduino DIP board. Meanwhile, on-board the RFduino USB Shield is a 3.3V regulator which can be used to supply power to the RFduino DIP module as well as other shields and possibly the rest of your circuit.

With this kit you won"t need to worry about buying the USB shield separately from the RFduino DIP, it"s all in one box and ready to be used right away!

Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (7" diagonal) bright (14 white-LED backlight) and colorfu 800x480 pixels with individual pixel control. As a bonus, this display has a optional resistive touch panel with controller XPT2046 attached by default.

The shield is fully assembled, tested and ready to go. No wiring, no soldering! Simply plug it in and load up our library - you"ll have it running in under 10 minutes! Works best with any classic Arduino (Due/Mega 2560). This display shield has a controller built into it with RAM buffering, so that almost no work is done by the microcontroller. You can connect more sensors, buttons and LEDs.

Of course, we wouldn"t just leave you with a datasheet and a "good luck!" - we"ve written a full open source graphics library at the bottom of this page that can draw pixels, lines, rectangles, circles and text. We also have a touch screen library that detects x,y and z (pressure) and example code to demonstrate all of it. The code is written for Arduino but can be easily ported to your favorite microcontroller!

Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (5" diagonal) bright (12 white-LED backlight) and colorfu 480x272 pixels with individual pixel control. As a bonus, this display has a optional resistive touch panel attached on screen by default.

The shield is fully assembled, tested and ready to go. No wiring, no soldering! Simply plug it in and load up our library - you"ll have it running in under 10 minutes! Works best with any classic Arduino (UNO/Due/Mega 2560).

Of course, we wouldn"t just leave you with a datasheet and a "good luck!" - we"ve written a full open source graphics library at the bottom of this page that can draw pixels, lines, rectangles, circles and text. We also have a touch screen library that detects x,y and z (pressure) and example code to demonstrate all of it. The code is written for Arduino but can be easily ported to your favorite microcontroller!

In this post I will show you a little sketch and iOS app I made to send long strings to an RFduino and display them on an LCD display. By the end you will have something like the below:

Grab your RFduino, breadboard, LCD screen and potentiometer. Connect them as shown below. Although the diagram shows a 2×16 display I used a 4×20 LCD screen (couldn’t find 4×20 on Fritzing!) but this will work with a 2×16 with some minor adjustments to the Arduino sketch.

The Arduino sketch uses the RFduino library so the BLE hard work is already done for us. Although everything in this example is quite simple there is a fair bit of code because I have implemented the following to make it a bit more interesting: auto one line scrolling text, RSSI signal strength and meter, and a temperature display. I have tried to keep it all separate in the code and have commented on how it all works but if you have any questions post a comment.

The most important part of the Arduino code is the section where the data is received from the BLE connection and how it is all put together in one string. The simplest way I could think of doing this was to put an identifier character at the beginning of every string I sent to the RFduino. When the RFduino receives data it checks the first character (data[0]) and if it is a ‘1’ is knows the following characters in data[] are the first part of the incoming string. If the first character is a ‘2’ it will know the following characters in data[] are be appended to the string of already received characters.

As we can only send 12 characters over the standard RFduino setup this method reduces this to 11 characters, as the first character is now the identifier. For example if I wanted to send “Hello world how are you today?” it would be sent like this:

Of course you can also add more check conditions for data[0] which when activated will do other functions. For example, in my full code you will see that when a ‘0’ is received the RFduino resets its display string to the default message that it displays after setup.

//scrolling - modified version of http://nishantarora.in/tutorial-arduino-16x2-lcd-how-to-scroll-only-one-line-at-a-time-while-keeping-the-other-constant.naml

Load up the sketch on your RFduino and turn it on. If all has worked correctly you should be greeted by the following screen and if you have a standard RFduino app on your phone you should see “Display” come up when you search for devices.

RFduino have been kind enough to produce a bare bones iOS framework that we can use to get our app started. However, there a few setup steps required before it will work correctly.

Make a new iPhone project with a single view. Drag the RFduino folder from the above file path and make sure you copy the files and add to the project target.

2. Delete your original AppDelegate.h and AppDelegate.m files. Don’t worry there are replacement AppDelegate files in the imported RFduino folder that will take over the role of AppDelegate.

6. Open ViewController.h and replace the contents with the following code. This adds a property for rfduino and sets the ViewController as a delegate of RFduinoDelegate.

We will use that later. Now lets add some properties to the ViewController.h for the rfduino, text field and UILabel for the device name that we will display.

Unless I have forgotten something this will now work. Run the app with the RFduino on and send strings of length >12 to your heart’s content. It should look like this when complete.

Anyway, I found the RFduino and ordered one. I managed to get it all working within 20 minutes so here are my initial thoughts and findings. You will need an iOS device (4S onwards have BLE)  to get what I have in this blog working.I will cover how to get a custom iOS and Android app working  with this shortly.

First thing to note is the size of it. It is very small considering that you have both the micro controller and BLE circuitry all in one tiny package. The picture below shows the USB programmer and the RFduino on a dev board. If you were to drop the RFduino directly onto your own PCB it would only take up less than 20x20mm! Considering you are also getting an ARM Cortex M0 that can be programmed like an Arduino it really does become quite useful.

The above only costs £30 from RS, the RFduino PCB singular is £10 which does make this quite a cheap package if you are wanting to start experimenting with BLE.

Setting up the RFduino is mostly a simple task if you have used any similar hardware etc but there is also plenty of information at RFduino.com for any in depth help. I will just glide over it to give a brief synopsis of what is needed. Feel free to message me with any questions if you like!

2. Download the RFduino zip package from here. Unzip and place in the following directory: programFiles/Arduino/Hardware/arduino (there should be two folders in the directory already called ‘sam’ and ‘avr’ to make sure you are in the right place). On a mac go to applications and right click the Arduino application, select show ‘show package contents’. Then drop the file in: contents/resources/java/hardware/arduino.This gives the Arduino IDE the information to program the RFduino.

3. Open the RFduino folder and then the libraries folder inside it. Copy the RFduinoBLE folder and place it in the Arduino libraries folder (this will be found at the same level as the hardware folder). This will give us all of the RFduino example code.

Now plug in your RFduino. Open the Arduino IDE and load the temperature sketch from the RFduino section of the examples section. I like chose this one because it involves no other hardware.Select ‘RFduino’ as your board and finally set your COM port correctly, usually this is automatic on Windows (normally tty.usbserial on a mac). Both parts are pictured below.

Now upload the sketch to the RFduino. ‘Success’ should be displayed in orange in the console at the bottom of the IDE if all has gone well. If you get an error, check that your files are in the right place in the hardware and libraries directories. You may have noticed nothing seems to be acting any different.

Get your iOS device out and download the RFduino temperature sample app from the App Store. https://itunes.apple.com/us/app/rfduino-temperature/id668832196?mt=8

Turn Bluetooth on in settings on your iOS device and load the app. You should now see a list view with one entry showing your RFduino. Press the RFduino entry in the list and it will change view to show you the current temperature from the RFduino board on your iPhone screen. Easy as that.

I would now look at the rest of the examples and see what you can make. RFduino have been generous enough to supply the source Xcode projects for the iPhone apps too in the RFduino folder. There are also more finished sample apps on the App Store if you search for RFduino.

Below is a screenshot of the current example sketches from RFduino. As you can see there is a wide selection, from servo control, proximity, to iBeacons.

Arduino UNO model of the entire series was in maximum demand. Keeping intact the technology of Arduino UNO, a new stand-alone micro-controller board has been constructed which is named as RFduino. This platform is highly advance and undoubtedly unique. The primary feature of RFduino is its exclusively small size which fits into any kind of project. Also this multiplatform controller is highly cost efficient. Hence, it is a perfect package of a miniature, high efficiency and low price tag multi-processor.

RFduino is a wireless enabled micro-controller which induces compatible communication with any Bluetooth 4.0 in smartphones or tablets. But Android operating system was lagging behind in the nature of interaction with various wireless networks. The reason behind it was lesser number of devices supported Bluetooth 4.0 LE. After the launching of the new RFduino board, it only supported the iPhone 4 and 5 series for Bluetooth 4.0 LE. But now this advance bluetooth technology is available in Android operating system.

RFduino – Read analog sensor is used to display data from the analog sensor into your iPhone. This is done with the help of bluetooth technology between RFduino and iPhone. By connecting a single sensor to the GPIO pin and inducing 5V power into the circuit, this unbelievable technology can be incorporated.

RFduino with a 6 Axis accelerometer helps communication of your smartphones with the various pre-installed sensors. The RFduino communicates easily with the accelerometer or gyroscope and transfers output data directly into the computer via USB shield.?

RFduino Temperature app is used to create a sensor application for reading temperature on your iPhone. This is initiated by reading the data from a TMP36 temperature sensor through GPIO pins. While sending data the signaling LED turns on.

RFduino Servo app build on your iPhone allows you to control all the four standard servos which are interfaced with a servo shield and is controlled through RFduino.

RFduino + adafruit ST7735 1.8” TFT displayhelp you to display images. ST7735 1.8” TFT displays several images using GPIO pins of RFduino from the adafruit ST7735 library.

Twitter RFduino App enables you to send messages automatically into the twitter account. Bluetooth allows you to send messages within a small range. But Twitter RFduino App will allow you to send messages via low energy bluetooth 4.0 initiating small application of internet.

Quadcopterinstalled in various flying devices, is controlled by RFduino micro-controller. Besides it also helps the Quadcopter to connect with the ground by sending data into the smartphone.

You can avail various options in term of devices to build a robot. Some devices come with complete manual and kits. Some are stand-alone devices which have to be accessorized before configuring it into any kind of project. Building a robot requires complete kits, scratches fro 3D printer and many other robotic parts. If you are absolutely comfortable with Arduino devices, then RFduino will be the ultimate choice for devising such robots. The plus points of this micro-controller are, it fits your budget and provides high-efficiency performance with its Bluetooth 4.0 LTE. With les than $20 you can avail this extraordinary device and construct your own project.

The following instructions are specific to the 2.4″ LCD Shield sold by ZYLtech Engineering. These instructions may or may not work for non-ZYLtech LCD shields. The LCD shield works with Arduino UNO/Mega (ATMEGA16U2 or CH340 version). It may also work with other boards as well.

Please note: The instruction is for ZYLtech Arduino 2.4 LCD Shields purchased after May 23, 2016. Information for the older version can be found in the second part of this instruction

Next, download the modified sketch for TFTpaint, from which you will learn how to use the touchscreen function of this LCD shield. In order for this sketch to work properly, you will need the following two libraries. (Download, unzip and copy to your Arduino IDE library folder.)

​If your x, y coordinates of the Touch Screen are inverted, try comment/uncomment line 51/53 in the TFFTLCD.CPP file. If you get a white screen it is probably because there is already a TFTLCD.cpp file in your library. Find the following code in your TFTLCD.CPP file and add delay as showing below: