stm32f103 tft lcd library price

This library is prepared from "LCDWIKI_KBV.h"-display library, for using ILI9481 8 bit 3.5" LCD TFT Display with STM32bluepill. "TouchScreen_STM.h" touch screen library can be used along with this library.(see example/touch_pen). "TouchScreen_STM.cpp" touch screen library is also slightly modified. Both display and touch libraries are included.This library requires https://github.com/gitcnd/LCDWIKI_GUI.

JoaoLopes’s library supports ILI9341, and this one probably is an ILI9341. I checked the SPFD5408 datasheet, and Joao’s library definitely isn’t for SPFD5408. I wonder why he named it so.

Joao Lopes’s library above uses a modified version of the Adafruit TFT library for the hardware layer. The Adafruit TFT library was originally for controlling ILIxxxx series of IC, but this guy modified it for the 8 bit interface of SPFD508.

Now, I’ve seen working code examples for STM32 for the ILIxxxx on Andy’s Workshop blog http://andybrown.me.uk/2012/01/01/stm32 … ft-driver/. So I’m tracking where Joao changed the Adafruit library to try and figure out how to modify an STM32 driver for this TFT.

Okay, I did a git diff on the SPFD5408 library and the Adafruit TFTLCD (for ILI9325 in 8 bit mode) library. Only one thing has been changed, and that is the readID function (it reads a register to identify the chip) which isn’t a big change at all. So I think an STM32 8 bit interface library for ILI9325 should work for the SPFD5408 as well. I’ll look for one or modify andy’s workshop code.

martinayotte wrote:I have an 3.5″ LCD from MCUFriend which looks almost the same as the one above, and I used some parallel 8bits code which use ILI9327 commands.

And also developed a touch screen lib which has some nice features (repeated touch, double touch), check the tftpaint.ino example of the touch library for details.

Theoretically they should give 2500mAh, I will be satisfied if I get 1500mAh out of them, this would mean 12h of 120mA (current consumption of TFT+blue pill).

If you post the defines that you have used in LCD_ID_readreg, I will know your wiring scheme and that it works! I can post a SPECIAL for you. And you can test it. The MapleMini is supported by both Roger’s MapleCore and the Core from ST.

I would get familiar with the basic TFT and GFX methods first. The existing TouchScreen libraries all have issues with Due, Zero, STM32, Teensy, … generally due to pinMode() and digitalWrite() “optimisations”.

I have a tft lcd shield. when I run it use arduino uno, it show me that identifier is ili9325 and works well but when I run it use STM32 blue pill, and this library:

I have run STM32F103 on IteadMaple, Nucleo-F103, and two BluePills. One of the BluePills has its data bus on PA0-PA7. And the Write Cycle is as short as the STM32F103 can possibly make it.

I did it. Pins PA11 PA12 PA15 PB3 PB4 didn’t toggle. I have 2 boards and I test both of them but these pins had problem in both. how can I fix it or change pins in the library????

it do not show until you READ ID of screen. Use LCD_ID_readreg.ino Paste your LCD_ID_readreg.ino example and make photo of your connection to blue pill.

The MCUFRIEND_kbv library is designed for 8-bit Shields. I know that LCD_RD is plugged into Analog #0 pin. Hence my list of #defines in the Readreg sketch.

The MCUFRIEND_kbv library is designed for 8-bit Shields. I know that LCD_RD is plugged into Analog #0 pin. Hence my list of #defines in the Readreg sketch.

It make sense to feed the display with 5V because the regulator on blue pill is not strong enough to deliver the necessary current for the background light of the LCD.

As you learn about more of your microcontroller’s peripherals and start to work with more types of sensors and actuators, you will probably want to add small displays to your projects. Previously, I wrote about creating a simple program to draw data to an SSD1331 OLED display, but while they look great, the small size and low resolution can be limiting. Fortunately, the larger (and slightly cheaper) ILI9341 TFT display module uses a nearly-identical SPI communication protocol, so this tutorial will build on that previous post by going over how to draw to a 2.2″ ILI9341 module using the STM32’s hardware SPI peripheral.

We’ll cover the basic steps of setting up the required GPIO pins, initializing the SPI peripheral, starting the display, and then finally drawing pixel colors to it. This tutorial won’t read any data from the display, so we can use the hardware peripheral’s MISO pin for other purposes and leave the TFT’s MISO pin disconnected. And as with my previous STM32 posts, example code will be provided for both the STM32F031K6 and STM32L031K6 ‘Nucleo’ boards.

There are actually multiple sets of pins mapped to the SPI1 peripheral, even on the 32-pin STM32xKx chips. I’ll use pin B3 for SCK and pin B5 for MOSI. Pin B4 is mapped to MISO, but I’ll use it as a general-purpose output to drive the D/C pin on the TFT. As long as the MISO pin is not configured as ‘alternate function’, the peripheral will ignore it and we can use pin B4 as a normal GPIO pin. Finally, pins A12 and A15 are mapped to CS and RST respectively:

So short of taking a hammer to the screen, you shouldn’t be able to damage them too much by bumping them around or dropping them from a tabletop. Anyways, to start the display and put it into a state where it can draw things, we need to send it a series of startup commands. Like with the SSD1331 display, most commands are followed by one or more ‘option’ bytes, but unlike the SSD1331, those ‘option’ bytes should be sent with the D/C pin held high, not low. You can see all of the commands in the ILI9341 datasheet, but some commands appear to be undocumented, so it is a good idea to look at an existing library for a starting sequence that should work for most purposes.

Since Adafruit is awesome, they provide an ILI9341 library which is compatible with the Arduino IDE and devices which are supported by that – take a look at the .cpp file’s void Adafruit_ILI9341::begin(...) method. The command macros such as ILI9341_PWCTR1 are defined in the library’s .h file. The writeCommand method is similar to our hspi_cmd one, and spiWrite is used to write a byte over the SPI protocol, like our hspi_w8 method. So, our startup sequence can look something like this:

Thin film transistor liquid crystal display (TFT-LCD) is a variant of liquid crystal display (LCD) which uses thin-film transistor (TFT) technology to improve image quality (e.g., addressability, contrast).

TFT LCDs are used in television sets, computer monitors, mobile phones, handheld video game systems, personal digital assistants, navigation systems, projectors, etc.

This library is valid for TFT controllers in 8-bit/16-bit working mode for STM32 devices and TFT controllers in 8-bit working mode for Stellaris devices.

Initializes HX8347-D display controller display in the 8-bit working mode for Stellaris devices and 16-bit working mode for STM32 devices without setting TFT_DataPort direction.

Initializes R61526 display controller display in the 8-bit working mode for Stellaris devices and 16-bit working mode for STM32 devices without setting TFT_DataPort direction.

Initializes SST7715R display controller display in the 8-bit working mode for Stellaris devices and 16-bit working mode for STM32 devices without setting TFT_DataPort direction.

void TFT_Set_Brush(char brush_enabled, unsigned int brush_color, char gradient_enabled, char gradient_orientation, unsigned int gradient_color_from, unsigned int gradient_color_to);

void TFT_Rectangle_Round_Edges(unsigned int x_upper_left, unsigned int y_upper_left, unsigned int x_bottom_right, unsigned int y_bottom_right, unsigned int round_radius);

void TFT_Partial_Image(unsigned int left, unsigned int top, unsigned int width, unsigned int height, code const far unsigned short * image, unsigned short stretch);

void TFT_Ext_Partial_Image(unsigned int left, unsigned int top, unsigned int width, unsigned int height, unsigned long image, unsigned short stretch);

3. Some controller chips can operate in more than one mode eg spi/8bit/16bit or external/internal framebuffer. The lcd module you buy will usually be hardwired to operate in a particular mode with no ability to change it. Make sure you get not only the controller you want but also that controller configured in the way you want to use it. Often the choice of the lcd module is what drives all the other decisions.

The above discussion is of course very generic. Knowing more about what you are trying to achieve and what your budget is, or a list of lcd modules you are thinking of, could help us give more specific advice.

Cross-platform Has no external dependencies and can be compiled for any vendor"s any MCU or MPU, and (RT)OS to drive ePaper, OLED or TFT displays, or even monitors.

Based on Andy Hill’s project, pingumacpenguin/STM32-O-Scope: STM32F103 based minimalist oscilloscope., in turn based on Ray Burnette’s idea. See also this thread on stm32duino forums: $10 O-Scope revisited by ahull on May 09, 2015. All credit goes to them, I’m only following instructions.

One confusing part of the steps is that it says “Hardware SPI1 on the STM32F103C8T6 ALSO needs to be connected and pins are as follows.” then lists “SPI1_NSS (PA4) (LQFP44 pin 14) (n.c.)”, but n.c. means not-connected. PA4 is the slave select pin, also known as S̅S̅, SSEL, CS, C̅S̅, CE, nSS, /SS, or SS#. In this case they capitalized nSS as NSS. To be clear, PA4/NSS does not need to be connected.

The STM32-O-Scope software is an Arduino project. Flash the generic_boot20_pc13.bin bootloader using a USB-to-serial adapter onto the STM32F103 blue pill board. Then connect over USB and select the board and virtual serial port in the Arduino application, load up the pingumacpenguin/STM32-O-Scope sketch.

-#include "Time.h" //If you have issues with the default Time library change the name of this library to Time1 for example.+#include "Time1.h" //If you have issues with the default Time library change the name of this library to Time1 for example. #define TZ "UTC+1"

Committed locally in Fix time library conflict, rename to Time1 but didn’t pull request since it also requires a library file change. In Arduino/libraries, rename Time to Time1 and also Time/Time.h to Time1/Time1.h.

From the source code we see the additional wires for adding the optional touchscreen input. You can use an LCD screen without a touch panel, but I opted for one since it was only a couple more bucks. Now that the display works, time to hook it up, five more wires:

This display module not only has an LCD and touch screen panel, but also an SD card slot, through an unpopulated header. 4 connections, also using SPI: SD_CS, SD_MOSI, SD_MISO, and SD_SCK. The LCD is connected to SPI1 (PA7/6/5/4), touch to SPI2 (PB12/13/14/15), could the SD card adapter connect to PA15/PB3/PB4/PB5?

The Maple Mini was a board based on the STM32F103 ARM Cortex-M3 processor made by LeafLabs and released in 2011. The original Maple Mini is no longer available, but clones with identical functionality are now widely available at budget price

It features an STM32F103CBT6 running at 72 MHz, 128 Kbytes of flash, and 20 Kbytes of RAM. It provides 34 I/O lines including nine 12-bit analogue inputs and 12 16-bit PWM analogue outputs.

The STM32 F1-series was the first group of STM32 microcontrollers based on the ARM Cortex-M3 core and considered their mainstream ARM microcontrollers. The F1-series has evolved over time by increasing CPU speed, size of internal memory, variety of peripherals. There are five F1 lines: Connectivity (STM32F105/107), Performance (STM32F103), USB Access (STM32F102), Access (STM32F101), Value (STM32F100). The summary for this series is:

Common peripherals included in all IC packages are USB 2.0 FS, two SPI, two I²C, three USART, eight 16-bit timers, two watchdog timers, temperature sensor, 16 to 24 channels into one ADC, two DACs, 37 to 83 GPIOs, seven DMA, real-time clock (RTC), cyclic redundancy check (CRC) engine. The STM32FL152 line adds a LCD controller.

capacitive touch sense and 32-bit random number generator (only L0x2 and L0x3 chips), LCD controller (only L0x3 chips), 128-bit AES engine (only L06x chips).

This board includes an integrated ST-LINK/V2 debugger via Mini-B USB connector, 8 MB SDRAM (IS42S16400J), 2.4-inch 320x200 TFT LCD color display (SF-TC240T), touchscreen controller (STMPE811), gyroscope (L3GD20), 2 user LEDs, user button, reset button, Full-Speed USB OTG to second Micro-AB USB connector, and two 32x2 male pin headers.

This board includes an integrated ST-LINK/V2 debugger via Mini-B USB connector, 24-segment LCD, touch sensors, 2 user LEDs, user button, reset button, and two 28x1 male pin headers.

This board includes an integrated ST-LINK/V2 debugger via Mini-B USB connector, 24-segment LCD, touch sensors, 2 user LEDs, user button, reset button, and two 28x1 male pin headers.

MicroEJ provides extended features to create, simulate, test and deploy Java applications in embedded systems. Support for Graphical User Interface (GUI) development includes a widget library, design tools including storyboarding, and tools for customizing fonts.STM32F205VGT6J.

A prototyping environment for a variety of STM32 variants, which allows users to create their applications using an application programming interface (API) to implement device peripherals and a range of evaluation features on the EvoPrimer base including TFT color touchscreen, graphical user interface, joy stick, codec-based audio, SD card, IrDA and standard peripherals such as USB, USART, SPI, I2C, CAN, etc.

STMicroelectronics has additional documents, such as: evaluation board user manuals, application notes, getting started guides, software library documents, errata, and more. See External Links section for links to official STM32 and ARM documents.