2.2 spi tft lcd teensy 3.6 hookup made in china

Kuman 3.5 inch 320*480 Resolution Touch Screen TFT LCD Display With Protective Case + 3 x Heat sinks+ Touch Pen for Raspberry Pi 3 Model B, Pi 2 Model B & Pi Model B+ SC11

...use them on all my projects. I"ve bought about 8 so far and can get them to work with either Teensy 3.2 or an Arduino Nano. For operation with a Teensy 3.2 1. use the from the PJRC--and this lib is very fast connect...

EDIT as of 12/29/2019 Usage with Arduino connect as usual but power your Arduino with 3.3 volts (just connect 3.3 to the 5V pin on the arduino). Alternatively you can put a 1K series resistor on all pins to drop the voltage going to the unit (and power with 3v3). THESE UNITS WILL NOT WORK IF POWERED WITH 5 AND IF THE SIGNAL LINES ARE 5 VOLTS.

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.

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.

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.

SPI micro SD card adapters like this can be had for less than $1 on eBay, and these can be connected directly to the pins of 5 volt Arduino’s like the UNO or the smaller form factor NANO. (note: the SPI pin labels are on the back). Note: These SD card adapters do not always get along with other SPI devices on the same bus.

Since the RTC is an I2C device, it uses the A4 pin on the Arduino as the SDA data line (white) and the A5 pin as the SCL clock signal line (yellow). There are many easy to use I2C sensors (that have pre-written libraries) that you may use with your logger, and they will be connected to these lines in parallel with the RTC. ( …if those sensors can tolerate 5v logic levels like this RTC ) To enable I2C communications, this RTC breakout board already has 4.7K pullup resistors installed on those two lines, so any other sensors you wish to connect to the SDA and SCL communication lines will probably not need pullup resistors to function. Many sensor breakout boards also have pullups on them, which you can usually leave in place, provided that the combined resistance of your parallel pullup resistors does not fall below 2.2k ohms.

Place the SD card holder on the breadboard and jumper the following SPI lines from the adapter board ( check and match the labels printed on your particular SD board):

-> The SPI line jumper wires are not in the correct place or you have a loose wire somewhere. There is some variation in the different board pin locations so review these on your board first to make sure you have everything connected properly.Note that your particular SD card adapter board pin-outs may not match my diagrams here, so you will have to adjust for that.

The power source to the XC6222 is controlled by a P-channel MOSFET. In addition, the 3.3V regulated output from the XC6222 is controlled by the enable (EN) pin, broken out on the board. By default, the chip enable pin (EN) is pulled high, to enable the 3.3V output, supply voltage. To disable and shutdown the output voltage from the XC6222, the chip enable pin (EN) needs to be pulled low (i.e. shorted to ground (GND)). For more information, pleas refer to the XC6222.

The Teensy is a breadboard-friendly development board with a large number of features in a small package. Each Teensy 3.6 comes pre-flashed with a bootloader allowing to program it through the onboard USB connection; there is no need for an external programmer.

Users can program the Teensy working with their favorite program editor using C, or they can install the Teensyduino add-on for the Arduino IDE and develop Arduino sketches.