arduino lcd module sd card reader pricelist

The Arduino TFT screen is a backlit LCD screen with headers. You can draw text, images, and shapes to the screen with the TFT library. There is an onboard micro-SD card slot on the back of the screen that can, among other things, store bitmap images for the screen to display.

The screen"s headers are designed to fit into the socket on the front of the Arduino Esplora, but it is compatible with any AVR-based Arduino (Uno, Leonardo, etc) or with the Arduino Due. The TFT library interfaces with the screen"s controller through SPI when using the TFT library.

Key Features: Use this small LCD screen with Arduino Robot, Esplora, or on breadboard. The screen is 1.77" diagonal, with 160 x 128 pixel resolution. Includes micro-sD socket The LED backlight is dimmable by PWM. The screen" s headers are laid out so it easily sockets into the Arduino Esplora and Arduino Robot. The Arduino TFT screen is a backlit LCD screen with headers. You can draw text, images, and shapes to the screen with the TFT library. There is an onboard micro-SD card slot on the back of the screen that can, among other things, store bitmap images for the screen to display. The screen" s headers are designed to fit into the socket on the front of the Arduino Esplora, but it is compatible with any AVR-based Arduino (Uno, Leonardo, etc) or with the Arduino Due. The TFT library interfaces with the screen" s controller through SPI when using the TFT library. Item Specifics The screen runs on +5 VDC

There are different models from different suppliers, but they all work in a similar way, using the SPI communication protocol. The module used in this tutorial is the one shown in figure below (front and back view).

This line of code creates a file called data.txt on your SD card. If the data.txt file already exists,  Arduino will open the file instead of creating another one.

In this guide we’re going to show you how you can use the 1.8 TFT display with the Arduino. You’ll learn how to wire the display, write text, draw shapes and display images on the screen.

The 1.8 TFT is a colorful display with 128 x 160 color pixels. The display can load images from an SD card – it has an SD card slot at the back. The following figure shows the screen front and back view.

This module uses SPI communication – see the wiring below . To control the display we’ll use the TFT library, which is already included with Arduino IDE 1.0.5 and later.

The TFT display communicates with the Arduino via SPI communication, so you need to include the SPI library on your code. We also use the TFT library to write and draw on the display.

The 1.8 TFT display can load images from the SD card. To read from the SD card you use the SD library, already included in the Arduino IDE software. Follow the next steps to display an image on the display:

Note: some people find issues with this display when trying to read from the SD card. We don’t know why that happens. In fact, we tested a couple of times and it worked well, and then, when we were about to record to show you the final result, the display didn’t recognized the SD card anymore – we’re not sure if it’s a problem with the SD card holder that doesn’t establish a proper connection with the SD card. However, we are sure these instructions work, because we’ve tested them.

In this guide we’ve shown you how to use the 1.8 TFT display with the Arduino: display text, draw shapes and display images. You can easily add a nice visual interface to your projects using this display.

Description: The Arduino Graphic LCD (GLCD) screen is a backlit TFT LCD screen with headers. You can draw text, images, and shapes to the screen with the GLCD library. There is an onboard micro-SD card slot on the back of the screen that can, among other things, store bitmap images for the screen to display.

The screen"s headers are designed to fit into the socket on the front of the Arduino Esplora, but it is compatible with any AVR-based Arduino (Uno, Leonardo, etc. Datasheet You can use this module with Arduino Esplora.

Often times, we have the need for a way to store data in our projects, and most of the time, the EEPROM which comes readily to mind has a limited storage capacity, and issues with the format and nature of data it can hold. All this and more makes it probably not the best for storing data like text, CSV, audio, video or image files. To get around this we could use an SD card to store the data, and remove the card when we need to view on some other platform etc. That is why today’s project is focusing on how to interface an SD card module with an Arduino.

The Arduino Micro SD card Module is an SPI Communication based device. It is compatible with the TF SD cards used in mobile phones and can be used to provide some sort of external storage for micro controller and microprocessor based projects, to store different kind of data types from images to videos. SD cards generally are 3.3v logic level based devices, but with the aid of the Micro SD card module, the signals are converted to 5v via a logic level converter implemented on the SD card Module.

The SD card module as earlier stated, communicates with the arduino over the SPI (serial Peripheral interface) communication protocol and it is connected to the arduino hardware SPI pins. The SPI pins on an Arduino differs from one arduino to the other, but on the UNO which was used for this project, it is found between pin 10 to 12. To further highlight the connection made in the fritzing schematics above, below is a pin map of the connection between the SD card and the Arduino Uno;

The code for this tutorial will be based on the standard SD.h arduino library. It is one of the libraries that comes with the the installation of the IDE. The aim of this code is to basically show us the functions that can be performed with the SD card module, including read, write, etc.

So to jump right in, the first thing we do in the code is include the libraries that we will be using as shown below. We will basically be using the Arduino SD library and the SPI.h library which allows us to easily use the Arduino hardware SPI.

After the libraries have been declared, the next thing we do is declare the pin to which the CS pin of the SD card module is connected to the arduino. The CS pin is the only one that is not really fixed as any of the Arduino digital pin. We didn’t need to declare the other SPI pins since we are connected to the generic SPI pins and we have the SPI library included. After declaring the pin, we then create an object file, which will be used later on to store data on the SD card.

Next we move to the setup() function of the arduino code. The first thing we do is start the serial communication at 9600 baud rate. We then initialize the SD card with the next line of code, after which we create a file named test.txt and then write to it using the writeToFile() function. After writing to the file, it is closed. This section of the void setup() function was just used to demonstrate how easy it is to write  text/data to a file.

Since this was just a demo sketch to show how to read and write files, there was no point to run the code multiple times so they were all placed in the void setup() function which runs just once, instead of putting it in a void loop which runs for as long as you have power. Thus the void loop was included but with nothing inside, as you may have noticed, your arduino code will not compile without the void loop() function included. After the loop() function,are the code for the functions that were used under the void setup(), to read or write to the SD card.

Copy the code above and paste it into the Arduino IDE, Upload it to your board and you should see something like what is displayed below on your serial monitor.

1. The IO of arduino MEGA is officially 5V, TFT LCD use 3.3V IO. This CTE TFT LCD/SD shield for arduino MEGA provides the connection to a TFT LCD module directly without flying wires.

2. The shield use TRUE 5V to 3.3V level translation IC, therefore, it is compatible with many TFT LCD modules. Compatibility is highest when compared to ordinary TFT Shield, which use resistors or buffer to "shift" 5V to 3.3V. Compatibility issues may arise when using this method to translate IO level to 3.3V, especially at high write speed

4. Arduino MEGA 3.3V is 150mA, the output may not be enough for driving larger screen (e.g. 7", 5" LCD modules). Therefore, this shield has a onboard 1A 3.3V regulator to supply enough current to the screen.

This ST7735S 1.8" TFT Display features a resolution of 128×160 and SPI (4-wire) communication. Integrated with an SD card slot, it allows you to easily read full-color bitmaps from the SD card.

The module provides users with two wiring methods: pin header wiring and GDI (General Display interface). You can directly connect the display to a FireBeetle main controller using an FPC cable. Plug and play, easy to wire. Besides, the display supports a low refresh rate and offers a good display effect and strong versatility.

Micro SD Card Module Supports Micro SD Card, Micro SDHC card (high-speed card). The level conversion circuit board that can interface level is 5V or 3.3V. The communication interface is a standard SPI interface

Control Interface: A total of six pins (GND, VCC, MISO, MOSI, SCK, CS), GND to ground, VCC is the power supply, MISO, MOSI, SCK is the SPI bus, CS is the chip select signal pin; 3.3V regulator circuit: LDO regulator output 3.3V as level converter chip, Micro SD card supply.

MicroSD card toward the direction of the control interface MISO signal is also converted to 3.3V, general AVR microcontroller system can read the signal;