tft display with spi interface quotation

Looking for a SPI TFT display? Need a perfectly small SPI TFT for your next Arduino project? Check out our line of full-color SPI TFT LCD modules. Our SPI TFT displays are between 2 and 3.5 inch.

Displays much larger than 3.5 inches or with higher resolutions aren"t usually driven via SPI because it"s not fast enough to provide good frame rates for larger displays. But for small TFT displays, SPI is a perfectly suited interface.

tft display with spi interface quotation

This 128x160 resolution LCD TFT is equipped with a powerful backlight, providing visibility in bright lighting conditions including the direct sun. The sunlight readable display comes with 3/4-wire SPI interface and offers a 6:00 optimal view. This 2.8V Liquid Crystal Display has a built-in ILI9163V controller, FFC connection, is RoHS compliant and does not come with a touchscreen.

Enhance your user experience with capacitive or resistive touch screen technology. We’ll adjust the glass thickness or shape of the touch panel so it’s a perfect fit for your design.

Choose from a wide selection of interface options or talk to our experts to select the best one for your project. We can incorporate HDMI, USB, SPI, VGA and more into your display to achieve your design goals.

Equip your display with a custom cut cover glass to improve durability. Choose from a variety of cover glass thicknesses and get optical bonding to protect against moisture and debris.

tft display with spi interface quotation

This 240x320 resolution LCD TFT is a Premium display with 3-line/4-line SPI interface, offering high visibility up to 70° from any direction due to the multi-domain vertical alignment (MVA) technology in this LCD display. This Liquid Crystal Display has a built-in ST7789Vi controller, FFC ZIF I/O connection, is RoHS compliant and does not come with a touchscreen.

Enhance your user experience with capacitive or resistive touch screen technology. We’ll adjust the glass thickness or shape of the touch panel so it’s a perfect fit for your design.

Choose from a wide selection of interface options or talk to our experts to select the best one for your project. We can incorporate HDMI, USB, SPI, VGA and more into your display to achieve your design goals.

Equip your display with a custom cut cover glass to improve durability. Choose from a variety of cover glass thicknesses and get optical bonding to protect against moisture and debris.

tft display with spi interface quotation

I am not being lazy honest, I"ve spent hours searching AliExpress and BuyDisplays but most that I see are either Parallel or use the RA8875 chip that is not supported.

I except refresh rates will be low over SPI on a large screen, however for my application once the screen is completed then only needles or small data updates will be required to change.

tft display with spi interface quotation

ASI-T-17711A1SPN/D is a 1.77 inch transflective TFT with a resolution of 160 x 128, SPI interface and with a brightness of 110 Nits; viewable in direct sunlight.

ASI-T-20043A5PMN/AY is a 2.0 inch TFT with a resolution of 480 x 360, 3W SPI+16 bit RGB or MIPI interface, IPS all view, with a high brightness of 500 Nits.

ASI-T-240DA8BN/D is a 2.4 inch high brightness TFT with a resolution of 240 X 320, CPU 16-bit interface and with a brightness of 800 Nits; viewable in direct sunlight.

ASI-T-240DA10SMN/AQ is a 2.4 inch high brightness TFT with a resolution of 240 x 320, SPI & MCU interface, IPS all-angle view and with a brightness of 1000 Nits; viewable in direct sunlight. It also features an extra wide operating temperatures of -30 to +80C; perfect for extreme environmental applications.

ASI-T-240DAKBN/D is a 2.4 inch high brightness TFT with a resolution of 240 x 320, MCU interface and with a brightness of 1000 Nits; viewable in direct sunlight.

ASI-T-283DAKCRN/A is a 2.83 inch high brightness TFT with a resolution of 240 x 320, CPU, RGB, SPI interface and with a brightness of 1000 Nits; viewable in direct sunlight

ASI-T-3501RA1EN/A is a 3.5 inch TFT with a resolution of 480 x 640, 18 bit RGB, All View interface and with a brightness of 120 Nits; viewable in direct sunlight

ASI-T-3501RA1EN/D is a 3.5 inch TFT with a resolution of 480 x 640, 18-bit DBI Type B, All View interface and with a brightness of 120 Nits; viewable in direct sunlight

ASI-T-350EA8RCY6/A is a 3.5 inch high brightness TFT with a resolution of 320 x 240, 24-bit Parallel RGB/Serial RGB/CCIR/YUV interface and with a brightness of 850 Nits; viewable in direct sunlight with Capacitive Touch Panel

ASI-T-350EA10SRN/A is a 3.5 inch TFT with a resolution of 320 x 240, SPI & RGB interface and with a high brightness of 1,000 Nits and wide temperature range of -30 - +85 C.

tft display with spi interface quotation

This Color TFT LCD display has 128 x 128 resolution and 262 color, it uses SPI interface to communicate with controller such Arduino, it is the best upgrading of the Nokia5110.

tft display with spi interface quotation

The DT010TFT is a 1 inch TFT LCD module with 80 x 160 RGB resolution. This small LCD screen uses a 4-wire Serial Protocol Interface (SPI) to communicate with the driver IC (Ilitek ILI9163) and has a 6 o"clock viewing angle. The single chip driver IC for this transmissive TFT LCD provides a full color display mode of 262K colors. This TFT LCD is ideal to be used as an indicator or to display simple icons and information. The 1" LCD module includes a color TFT-LCD panel, a driver IC, FPC, and a white LED backlight unit.

tft display with spi interface quotation

The provided display driver example code is designed to work with Microchip, however it is generic enough to work with other micro-controllers. The code includes display reset sequence, initialization and example PutPixel() function.

Please see the DT028CTFT for reference designs. The schematics between the B and the C are the same with the exception that the B does not have the IPS interface.

tft display with spi interface quotation

ASI-T-17711A1SPN/D is a 1.77 inch transflective TFT with a resolution of 160 x 128, SPI interface and with a brightness of 110 Nits; viewable in direct sunlight.

ASI-T-20043A5PMN/AY is a 2.0 inch TFT with a resolution of 480 x 360, 3W SPI+16 bit RGB or MIPI interface, IPS all view, with a high brightness of 500 Nits.

ASI-T-240DA8BN/D is a 2.4 inch high brightness TFT with a resolution of 240 X 320, CPU 16-bit interface and with a brightness of 800 Nits; viewable in direct sunlight.

ASI-T-240DA10SMN/AQ is a 2.4 inch high brightness TFT with a resolution of 240 x 320, SPI & MCU interface, IPS all-angle view and with a brightness of 1000 Nits; viewable in direct sunlight. It also features an extra wide operating temperatures of -30 to +80C; perfect for extreme environmental applications.

ASI-T-240DAKBN/D is a 2.4 inch high brightness TFT with a resolution of 240 x 320, MCU interface and with a brightness of 1000 Nits; viewable in direct sunlight.

ASI-T-283DAKCRN/A is a 2.83 inch high brightness TFT with a resolution of 240 x 320, CPU, RGB, SPI interface and with a brightness of 1000 Nits; viewable in direct sunlight

ASI-T-3501RA1EN/A is a 3.5 inch TFT with a resolution of 480 x 640, 18 bit RGB, All View interface and with a brightness of 120 Nits; viewable in direct sunlight

ASI-T-3501RA1EN/D is a 3.5 inch TFT with a resolution of 480 x 640, 18-bit DBI Type B, All View interface and with a brightness of 120 Nits; viewable in direct sunlight

ASI-T-350EA8RCY6/A is a 3.5 inch high brightness TFT with a resolution of 320 x 240, 24-bit Parallel RGB/Serial RGB/CCIR/YUV interface and with a brightness of 850 Nits; viewable in direct sunlight with Capacitive Touch Panel

ASI-T-350EA10SRN/A is a 3.5 inch TFT with a resolution of 320 x 240, SPI & RGB interface and with a high brightness of 1,000 Nits and wide temperature range of -30 - +85 C.

tft display with spi interface quotation

Hi guys, welcome to today’s tutorial. Today, we will look on how to use the 1.8″ ST7735  colored TFT display with Arduino. The past few tutorials have been focused on how to use the Nokia 5110 LCD display extensively but there will be a time when we will need to use a colored display or something bigger with additional features, that’s where the 1.8″ ST7735 TFT display comes in.

The ST7735 TFT display is a 1.8″ display with a resolution of 128×160 pixels and can display a wide range of colors ( full 18-bit color, 262,144 shades!). The display uses the SPI protocol for communication and has its own pixel-addressable frame buffer which means it can be used with all kinds of microcontroller and you only need 4 i/o pins. To complement the display, it also comes with an SD card slot on which colored bitmaps can be loaded and easily displayed on the screen.

The schematics for this project is fairly easy as the only thing we will be connecting to the Arduino is the display. Connect the display to the Arduino as shown in the schematics below.

Due to variation in display pin out from different manufacturers and for clarity, the pin connection between the Arduino and the TFT display is mapped out below:

We will use two libraries from Adafruit to help us easily communicate with the LCD. The libraries include the Adafruit GFX library which can be downloaded here and the Adafruit ST7735 Library which can be downloaded here.

We will use two example sketches to demonstrate the use of the ST7735 TFT display. The first example is the lightweight TFT Display text example sketch from the Adafruit TFT examples. It can be accessed by going to examples -> TFT -> Arduino -> TFTDisplaytext. This example displays the analog value of pin A0 on the display. It is one of the easiest examples that can be used to demonstrate the ability of this display.

The second example is the graphics test example from the more capable and heavier Adafruit ST7735 Arduino library. I will explain this particular example as it features the use of the display for diverse purposes including the display of text and “animated” graphics. With the Adafruit ST7735 library installed, this example can be accessed by going to examples -> Adafruit ST7735 library -> graphics test.

Next, we create an object of the library with the pins to which the LCD is connected on the Arduino as parameters. There are two options for this, feel free to choose the most preferred.

Next, we move to the void setup function where we initialize the screen and call different test functions to display certain texts or images.  These functions can be edited to display what you want based on your project needs.

All the functions called under the void setup function, perform different functions, some draw lines, some, boxes and text with different font, color and size and they can all be edited to do what your project needs.

Uploading the code to the Arduino board brings a flash of different shapes and text with different colors on the display. I captured one and its shown in the image below.

That’s it for this tutorial guys, what interesting thing are you going to build with this display? Let’s get the conversation started. Feel free to reach me via the comment section if you have any questions as regards this project.

tft display with spi interface quotation

Display size, contrast, color, brightness, resolution, and power are key factors in choosing the right display technology for your application. However, making the right choice in how you feed the information to the display is just as vital, and there are many interface options available.

All displays work in a similar manner. In a very basic explanation, they all have many rows and columns of pixels driven by a controller that communicates with each pixel to emit the brightness and color needed to make up the transmitted image. In some devices, the pixels are diodes that light up when current flows (PMOLEDs and AMOLEDs), and in other electronics, the pixel acts as a shutter to let some of the light from a backlight visible. In all cases, a memory array stores the image information that travels to the display through an interface.

According to Wikipedia, "an interface is a shared boundary across which two separate components of a computer system exchange information. The exchange can be between software, computer hardware, peripheral devices, humans, and combinations of these. Some computer hardware devices such as a touchscreen can both send and receive data through the interface, while others such as a mouse or microphone may only provide an interface to send data to a given system.” In other words, an interface is something that facilitates communication between two objects. Although display interfaces serve a similar purpose, how that communication occurs varies widely.

Serial Peripheral Interface (SPI) is a synchronous serial communication interface best-suited for short distances. It was developed by Motorola for components to share data such as flash memory, sensors, Real-Time Clocks, analog-to-digital converters, and more. Because there is no protocol overhead, the transmission runs at relatively high speeds. SPI runs on one master (the side that generates the clock) with one or more slaves, usually the devices outside the central processor. One drawback of SPI is the number of pins required between devices. Each slave added to the master/slave system needs an additional chip select I/O pin on the master. SPI is a great option for small, low-resolution displays including PMOLEDs and smaller LCDs.

Philips Semiconductors invented I2C (Inter-integrated Circuit) or I-squared-C in 1982. It utilizes a multi-master, multi-slave, single-ended, serial computer bus system. Engineers developed I2C for simple peripherals on PCs, like keyboards and mice to then later apply it to displays. Like SPI, it only works for short distances within a device and uses an asynchronous serial port. What sets I2C apart from SPI is that it can support up to 1008 slaves and only requires two wires, serial clock (SCL), and serial data (SDA). Like SPI, I2C also works well with PMOLEDs and smaller LCDs. Many display systems transfer the touch sensor data through I2C.

RGB is used to interface with large color displays. It sends 8 bits of data for each of the three colors, Red Green, and Blue every clock cycle. Since there are 24 bits of data transmitted every clock cycle, at clock rates up to 50 MHz, this interface can drive much larger displays at video frame rates of 60Hz and up.

Low-Voltage Differential Signaling (LVDS) was developed in 1994 and is a popular choice for large LCDs and peripherals in need of high bandwidth, like high-definition graphics and fast frame rates. It is a great solution because of its high speed of data transmission while using low voltage. Two wires carry the signal,  with one wire carrying the exact inverse of its companion. The electric field generated by one wire is neatly concealed by the other, creating much less interference to nearby wireless systems. At the receiver end, a circuit reads the difference (hence the "differential" in the name) in voltage between the wires. As a result, this scheme doesn’t generate noise or gets its signals scrambled by external noise. The interface consists of four, six, or eight pairs of wires, plus a pair carrying the clock and some ground wires. 24-bit color information at the transmitter end is converted to serial information, transmitted quickly over these pairs of cables, then converted back to 24-bit parallel in the receiver, resulting in an interface that is very fast to handle large displays and is very immune to interference.

Mobile Industry Processor Interface (MIPI) is a newer technology that is managed by the MIPI Alliance and has become a popular choice among wearable and mobile developers. MIPI uses similar differential signaling to LVDS by using a clock pair and one to eight pairs of data called lanes. MIPI supports a complex protocol that allows high speed and low power modes, as well as the ability to read data back from the display at lower rates. There are several versions of MIPI for different applications, MIPI DSI being the one for displays.

Display components stretch the limitations of bandwidth. For perspective, the most common internet bandwidth in a residential home runs on average at around 20 megabits per second or 20 billion 1s and 0s per second. Even small displays can require 4MB per second, which is a lot of data in what is often a tightly constrained physical space.

To give an example, a small monochrome PMOLED with a resolution of 128 x 128 contains 16,384 individual diodes. A still image of various diodes carrying current represents a frame. A frame rate is the number of times that a picture needs refreshing. Most videos have a frame rate of 60 fps (frames per second), which means that it is updated 60 times every second.

Take the same PMOLED display with the 128 x 128 resolution and 16,384 separate diodes; it requires information as to when and how brightly to illuminate each pixel. For a display with only 16 shades, it takes 4 bits of data. 128 x 128 x 4 = 65,536 bits for one frame. Now multiply it by the 60Hz, and you get a bandwidth of 4 megabits/second for a small monochrome display.

tft display with spi interface quotation

Another non-related question, how to give power to teensy with a button and shut off with a GPIO, I know a latch or something or auto power off circuit is ok, but um...

I will use a 3.3v 500mA power supply connected to a lipo battery, probably with or maybe without a over discharge circuit. The power supply MIC5219-3.3V have a ENable pin, so if I utilize it, I can get less than 5 micro amps of current draw, which is certainly an overkill, if I use the power on/off thing that cut off 3.3v on the teensy, I can get less than 200 micro amps. I wonder if I can hook a GPIO pin to the power on/off pin, so I can pull it to high or low for a few seconds to turn if off, and also a physical button is connected to the power on/off so I can power it on with one click and hold button to force shutdown.

Using the power bank circuit that my li polymer battery comes with (power bank comes with) can [+]output more current, so can also power keyboard mice and hubs. [+]safe, with protection [+]only powers on when there is current draw (Teensy itself may not be able to keep it on, maybe can with the LCD backlight) or/and USB device is connected. Some people add resisters to add current draw, and that is bullshit. Another problem is how to control whether I want the converter to start or not, and have no complete control sucks.

tft display with spi interface quotation

Kingtech 240x320 (QVGA) TN 2.8 inch TFT LCD display is our most leading MCU interface display product. The 2.8inch TN display has the existing resistive touch and capacitive touch. We, as a 2.8 inch LCD display supplier, can also custom the touch part according to customer requirements. The high quality 2.8 inch mipi interface display can support MCU, RGB interface LCD, and SPI interfaces. Moreover, most of the customers used it for medical devices.

tft display with spi interface quotation

First of all, at the beginning of the source code, the author put this conditional SPI initialization that I think supports specific boards other than Arduino boards.

so this check starts with checking if it"s using arduino SPI library, if it"s another SPI library not the one in arduino core libraries folder, then this check is passed.

but also I don"t understand this author, why he/she would put SPI initialization/speed configuration at the beginning of the source file and in the void "ILI9488::begin(void)" function ?