banggood lcd touch screen made in china

Sometimes you use the the Raspberry Pi with 3.5 inch touchscreen , but sometime you don"t use them together. In this situation , you need case which both suitable for Raspberry Pi alone or with 3.5 inch touchscreen. This is the reason we provide this new case -- for the people use 3.5 inch screen more convenient: When you use the touchscreen , just remove the cover board and fan; When you don"t use the touchscreen , you can use the cover and fan , which become a normal case.

2). ​Please stick the pad on the back of 3.5 inch touchscreen , then insert the 3.5 inch touchscreen on Raspberry Pi by GPIO pin correctly ( don"t be malposed )

This is a really cool device! Being driven by an ESP32 the possibilities are overwhelming. When I ordered it, my mind was focused on building a WIFI Radio and using the great screen as not only data readout of station, volume and song information but also building a touch screen so it will control the whole radio. Now after looking it over and seeing the wonderfully bright screen, I am thinking more about other projects as well. I will have to give this some deep thought, I am happy with the plastic case that protected the device enroot from China, and perhaps will use the case later to house another, smaller pocket version of my current love, the wifi radios.

This is a really cool device! Being driven by an ESP32 the possibilities are overwhelming. When I ordered it, my mind was focused on building a WIFI Radio and using the great screen as not only data readout of station, volume and song information but also building a touch screen so it will control the whole radio. Now after looking it over and seeing the wonderfully bright screen, I am thinking more about other projects as well. I will have to give this some deep thought, I am happy with the plastic case that protected the device enroot from China, and perhaps will use the case later to house another, smaller pocket version of my current love, the wifi radios.

This is a really cool device! Being driven by an ESP32 the possibilities are overwhelming. When I ordered it, my mind was focused on building a WIFI Radio and using the great screen as not only data readout of station, volume and song information but also building a touch screen so it will control the whole radio. Now after looking it over and seeing the wonderfully bright screen, I am thinking more about other projects as well. I will have to give this some deep thought, I am happy with the plastic case that protected the device enroot from China, and perhaps will use the case later to house another, smaller pocket version of my current love, the wifi radios.

In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. You can watch the following video or read the written tutorial below.

For this tutorial I composed three examples. The first example is distance measurement using ultrasonic sensor. The output from the sensor, or the distance is printed on the screen and using the touch screen we can select the units, either centimeters or inches.

The third example is a game. Actually it’s a replica of the popular Flappy Bird game for smartphones. We can play the game using the push button or even using the touch screen itself.

As an example I am using a 3.2” TFT Touch Screen in a combination with a TFT LCD Arduino Mega Shield. We need a shield because the TFT Touch screen works at 3.3V and the Arduino Mega outputs are 5 V. For the first example I have the HC-SR04 ultrasonic sensor, then for the second example an RGB LED with three resistors and a push button for the game example. Also I had to make a custom made pin header like this, by soldering pin headers and bend on of them so I could insert them in between the Arduino Board and the TFT Shield.

Here’s the circuit schematic. We will use the GND pin, the digital pins from 8 to 13, as well as the pin number 14. As the 5V pins are already used by the TFT Screen I will use the pin number 13 as VCC, by setting it right away high in the setup section of code.

I will use the UTFT and URTouch libraries made by Henning Karlsen. Here I would like to say thanks to him for the incredible work he has done. The libraries enable really easy use of the TFT Screens, and they work with many different TFT screens sizes, shields and controllers. You can download these libraries from his website, RinkyDinkElectronics.com and also find a lot of demo examples and detailed documentation of how to use them.

After we include the libraries we need to create UTFT and URTouch objects. The parameters of these objects depends on the model of the TFT Screen and Shield and these details can be also found in the documentation of the libraries.

Next we need to define the fonts that are coming with the libraries and also define some variables needed for the program. In the setup section we need to initiate the screen and the touch, define the pin modes for the connected sensor, the led and the button, and initially call the drawHomeSreen() custom function, which will draw the home screen of the program.

So now I will explain how we can make the home screen of the program. With the setBackColor() function we need to set the background color of the text, black one in our case. Then we need to set the color to white, set the big font and using the print() function, we will print the string “Arduino TFT Tutorial” at the center of the screen and 10 pixels  down the Y – Axis of the screen. Next we will set the color to red and draw the red line below the text. After that we need to set the color back to white, and print the two other strings, “by HowToMechatronics.com” using the small font and “Select Example” using the big font.

Now we need to make the buttons functional so that when we press them they would send us to the appropriate example. In the setup section we set the character ‘0’ to the currentPage variable, which will indicate that we are at the home screen. So if that’s true, and if we press on the screen this if statement would become true and using these lines here we will get the X and Y coordinates where the screen has been pressed. If that’s the area that covers the first button we will call the drawDistanceSensor() custom function which will activate the distance sensor example. Also we will set the character ‘1’ to the variable currentPage which will indicate that we are at the first example. The drawFrame() custom function is used for highlighting the button when it’s pressed. The same procedure goes for the two other buttons.

So the drawDistanceSensor() custom function needs to be called only once when the button is pressed in order to draw all the graphics of this example in similar way as we described for the home screen. However, the getDistance() custom function needs to be called repeatedly in order to print the latest results of the distance measured by the sensor.

Ok next is the RGB LED Control example. If we press the second button, the drawLedControl() custom function will be called only once for drawing the graphic of that example and the setLedColor() custom function will be repeatedly called. In this function we use the touch screen to set the values of the 3 sliders from 0 to 255. With the if statements we confine the area of each slider and get the X value of the slider. So the values of the X coordinate of each slider are from 38 to 310 pixels and we need to map these values into values from 0 to 255 which will be used as a PWM signal for lighting up the LED. If you need more details how the RGB LED works you can check my particular tutorialfor that. The rest of the code in this custom function is for drawing the sliders. Back in the loop section we only have the back button which also turns off the LED when pressed.

@Johnny Yuen - I did a lot of purchases from DX.com back a long time ago. When then I found Banggood. I was starting to do a bunch of stuff with Multi-rotor aircraft. For many things their pricing is just as good as Hobbyking, or even better. Even their cheap (free) shipping gets me my order in about 2 weeks to the eastern U.S. If they have the same item in the US or UK warehouse, it"s like only about $2.00 more for the item, but you will get it within a week. Sometimes that works out cheaper than their expedited shipping from China.

It"s more common for there to be trademark violations (though Arduino has gotten much more active in dealing with trademark violators in recent years, so it"s less common now). The common trademark violation is people selling boards that have the Arduino trademark on them, even though they were not made by Arduino or someone with a license to use Arduino"s trademark. That is a counterfeit product. From the picture of the board in the product listing, I don"t see Arduino"s trademark. However, I do see the silkscreen on the Mega derivative claims "MADE IN ITALY", which is an absolute lie. Everyone knows that board was made in China. That gives you an idea of the ethics of the people who made it.

Of course, it is very important to support Arduino. The IDE an many of the libraries you will be using with that kit are provided as free open source by Arduino. You will be regularly using the documentation written by Arduino to learn. Arduino pays a team of professional developers and technical writers to work full time on improving and expanding all of these resources. That is all dependent on people buying official Arduino products or making donations. Despite all this work being open source, which anyone can contribute to, I guarantee that Banggood will never do a single thing for the Arduino project, even though they greatly benefit from it.

The thing is, compared to what it would have cost you to get into working with microcontrollers a couple of decades ago, this cost is nothing. The potential learning and fun you can get from an Arduino board is worth so much more than the cost of the board. That said, I definitely wouldn"t recommend getting two starter kits. Just get one. That will give you plenty enough to keep you busy. My preference is to buy the specific parts I need for projects, rather than having a random selection of parts forced on me by a kit. When it comes to these Chinese modules, there isn"t even any cost savings from buying a kit vs. just buying individual modules. That said, a kit might be a good thing for a beginner who doesn"t really know what they want to do and just wants to play around with Arduino and learn things. For that purpose, an LED matrix is just as good as an LCD.

OUKITEL recently released their big display & big battery smartphone – the K8 – in early August on OUKITEL’s official AliExpress store. The smartphone has now gained a lot of fans favor since released due to its mid-range specs and cost-effective price tag. The continuous evolution of full screen technology has brought a 18:9 full display into the K8 which makes the smartphone standout from the competition, bringing a large screen size in a smaller footprint which is easier to hold in hand. The K8 supposedly is the perfect combination of the 18:9 elongated screen ratio, with a big display and a large battery to power up the entire thing. Or at least that was on paper up until today, which is when we can actually check out the smartphone in an unboxing and hands-on video; let’s have a look!

As the OUKITEL K8 is set to go on presale on Banggood starting next week August 20th, the phone maker released the full specifications for the smartphone.

If you’re interested in getting one, tune in on August 20th, which is when presales will start over on Banggood with the usual big discounts. Learn more about the phone on its product page here.