sainsmart 1.8 st7735r tft lcd brands

The display is driven by a ST7735R controller ( ST7735R-specifications.pdf (2.1 MB) ), can be used in a “slow” and a “fast” write mode, and is 3.3V/5V compatible.

Adafruit_ST7735 is the library we need to pair with the graphics library for hardware specific functions of the ST7735 TFT Display/SD-Card controller.

Basically, besides the obvious backlight, we tell the controller first what we are talking to with the CS pins. CS(TFT) selects data to be for the Display, and CS(SD) to set data for the SD-Card. Data is written to the selected device through SDA (display) or MOSI (SD-Card). Data is read from the SD-Card through MISO.

So when using both display and SD-Card, and utilizing the Adafruit libraries with a SainSmart display, you will need to connect SDA to MOSI, and SCL to SCLK.

Note: Adafruit displays can have different colored tabs on the transparent label on your display. You might need to adapt your code if your display shows a little odd shift. I noticed that my SainSmart display (gree tab) behaves best with the code for the black tab – try them out to see which one works best for yours.

#define sclk 4 // SainSmart: SCL#define mosi 5 // SainSmart: SDA#define cs 6 // SainSmart: CS#define dc 7 // SainSmart: RS/DC#define rst 8 // SainSmart: RES

#define sclk 13 // SainSmart: SCL#define mosi 11 // SainSmart: SDA#define cs 10 // SainSmart: CS#define dc 9 // SainSmart: RS/DC#define rst 8 // SainSmart: RES

You can name your BMP file “parrot.bmp” or modify the Sketch to have the proper filename (in “spitftbitmap” line 70, and in “soft_spitftbitmap” line 74).

#define SD_CS 4 // Chip select line for SD card#define TFT_CS 10 // Chip select line for TFT display#define TFT_DC 9 // Data/command line for TFT#define TFT_RST 8 // Reset line for TFT (or connect to +5V)

#define SD_CS 4 // Chip select line for SD card#define TFT_CS 10 // Chip select line for TFT display#define TFT_DC 9 // Data/command line for TFT#define TFT_RST 8 // Reset line for TFT (or connect to +5V)

However, if your application needs your screen sideways, then you’d want to rotate the screen 90 degrees, effectively changing the display from a 128×160 pixel (WxH) screen to a 160×128 pixel display. Valid values are: 0 (0 degrees), 1 (90 degrees), 2 (180 degrees) and 3 (270 degrees).

tft.print("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa, fringilla sed malesuada et, malesuada sit amet turpis. Sed porttitor neque ut ante pretium vitae malesuada nunc bibendum. Nullam aliquet ultrices massa eu hendrerit. Ut sed nisi lorem. In vestibulum purus a tortor imperdiet posuere. ");

The 1.8" TFT LCD SPI-bus display modules available from Adafruit and SainSmart are functionally equivalent, except that the SainSmart unit can be driven at a much faster SPI bus rate than the Adafruit (32 MHz vs. 4 MHz in my testing). Fabien Royer has shown that this is due to a slow level shifter in the Adafruit unit.

The board supports multiple different 1.8" panel pinouts including Adafruit and SainSmart, and sports mounting pads for three GPIO buttons. Very nice!

Unit came broken. Panel was separated from the board. Connector was damaged. As noted by others, the documentation and sample code from SainSmart is pretty awful. Finally found a link to this: http://www.instructables.com/id/Mini-Arduino-enviroment-monitor/?ALLSTEPSThis seems to have the most complete 101 that I"ve seen.Ordered another unit, hoping this one comes in one piece so I can try getting it to work.Update: Picked up another display locally. Docs are non-existent of course... another review had a good link detailing connecting to an Uno.The first unit I had gotten was definitely bad. If you can"t get the backlight to come up (which is just the 5v and ground), then you aren"t going to get far.I"m also not going to be able to return it, because I ended up damaging the unit while trying to figure out why it wasn"t getting power.WARNING: The unit isn"t very rugged and the connection to the board is with a surface mount ribbon that is fragile and folded under the panel, so do NOT flex the panel from the board or press down on it, as this will potentially damage the cable or its connection.From another reviewer (Note: Compare the pin-outs carefully to the #define statements in the libraries. Current versions have the TFT_RST and TFT_DC pins swapped to what this article states)http://www.tweaking4all.com/hardware/arduino/sainsmart-arduino-color-display/Fast summary for fast mode:1. Download and install adafruit libraries (Yes, buy stuff from them. She rocks) 1st is the device specific lib, 2nd is the GFX core libhttps://github.com/adafruit/Adafruit-ST7735-Libraryhttps://github.com/adafruit/Adafruit-GFX-Library2. Pin wiring is slightly different then adafruit version (you will also have to modify the examples) Again, this is for fast version. Not worrying about SD card also.From right to Left on the back of the Sainsmart panelPanel --- Arduino UnoVCC ---- 5VGND ---- GNDSCL ---- Digital Pin 13 (Display Clock)SDA ---- Digital Pin 11 (Display Data)RS/DC ---- Digital Pin 8 (D - Data Mode or C Command Mode)RES ---- Digital Pin 9 (Reset)CS (For Display) Digital Pin 10 (Chip Select)3. Open the ST7335 Example Sketch - graphicstest4. You may have to make a minor edit. The current example sketch defaults to Option 1, high speed, which should match the above pins. Verify that the #Define statements for the pins match the above. TFT_CS is CS above TFT_RST is RES above TFT_DC is RS/DC aboveUpload and hopefully you"ll see the display working. Just starting to play further, now that I have it working.

We covered the basics of accelerometer previously inUsing Arduino with Parts and Sensors – Accelerometer Part 1andUsing Arduino with Parts and Sensors – Accelerometer Part 2. Today we’ll be testing KX022-1020 accelerometer using TFT liquid crystal panel. We’ll discuss how to control the TFT LCD in more detail in the next article. In addition, we’ll further exploreArduino Create. For more information about Arduino Create, please refer back tothisarticle.

After adding the library, attach the accelerometer to the Sensor Shield (I2C I/F) and try running the sample program. The accelerometer should be set to 1.8V or 3.0V.

Now the sample program is working fine, let’s try to display the values on a 1.8 inch TFT LCD monitor. Although this TFT liquid crystal monitor has a resolution slightly smaller than 126 x 160 px, it’ll be quite useful when displaying numbers or letters with Arduino etc.

When using the TFT monitor, the connection method and the library used in the program may be different depending on the specification of each TFT monitor. The TFT monitor used in this tutorial is a monitorSainSmart ST7735R. In addition to Arduino, the monitor is also compatible with Raspberry.

In order to use the monitor to run the program in Arduino, we’ll have to modify the downloaded library a little bit.We’ll go over how to control the TFT LCD in more detail in the next article. Once everything is set, you will be able to output numerical values in the monitor as shown in the video below:

In the next part, we’ll create a simple device using the same accelerometer and TFT monitor. We’ll show how to create graphs and display the values obtained from the accelerometer on the TFT monitor.

The 1.8″ display has 128×160 color pixels. Unlike the low cost “Nokia 6110” and similar LCD displays, which are CSTN type and thus have poor color and slow refresh, this display is a true TFT! The TFT driver (ST7735R) can display full 18-bit color (262,144 shades!). And the LCD will always come with the same driver chip so there"s no worries that your code will not work from one to the other.

The breakout has the TFT display soldered on (it uses a delicate flex-circuit connector) as well as a ultra-low-dropout 3.3V regulator and a 3/5V level shifter so you can use it with 3.3V or 5V power and logic. We also had a little space so we placed a microSD card holder so you can easily load full color bitmaps from a FAT16/FAT32 formatted microSD card. The microSD card is not included, but you can pick one up here.

I"m trying to output some data from a python script to a Sainsmart 1.8 TFT display. Followed the instructions from https://github.com/notro/fbtft/wiki, I am able to show the raspberry"s screen on the tft display with

When I try to output data from my python script, a pygame window ("pop up"-like) opens, but not on the tft screen, but on the main screen connected to the Raspberry with HDMI.