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王立帮
2024-07-20 22:09:06 +08:00
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arduino-cli/libraries/Adafruit-ST77XX-Library/examples/seesaw_shield18_test/.leonardo.test.skip Normal file
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arduino-cli/libraries/Adafruit-ST77XX-Library/examples/seesaw_shield18_test/seesaw_shield18_test.ino Normal file
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/***************************************************
This is an example sketch for the Adafruit 1.8" TFT shield with joystick
This example is for the Seesaw version
----> http://www.adafruit.com/products/802
Check out the links above for our tutorials and wiring diagrams
These displays use SPI to communicate, 4 pins are required to
interface
One pin is also needed for the joystick, we use analog 3
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <SPI.h>
#include <SD.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ST7735.h>
// Be sure to install Adafruit seesaw library!
#include <Adafruit_seesaw.h>
#include <Adafruit_TFTShield18.h>
Adafruit_TFTShield18 ss;
// TFT display and SD card will share the hardware SPI interface.
// Hardware SPI pins are specific to the Arduino board type and
// cannot be remapped to alternate pins. For Arduino Uno,
// Duemilanove, etc., pin 11 = MOSI, pin 12 = MISO, pin 13 = SCK.
#define SD_CS 4 // Chip select line for SD card on Shield
#define TFT_CS 10 // Chip select line for TFT display on Shield
#define TFT_DC 8 // Data/command line for TFT on Shield
#define TFT_RST -1 // Reset line for TFT is handled by seesaw!
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);
void setup(void) {
Serial.begin(9600);
while (!Serial);
// start by disabling both SD and TFT
pinMode(TFT_CS, OUTPUT);
digitalWrite(TFT_CS, HIGH);
pinMode(SD_CS, OUTPUT);
digitalWrite(SD_CS, HIGH);
// Start seesaw helper chip
if (!ss.begin()){
Serial.println("seesaw could not be initialized!");
while(1);
}
Serial.println("seesaw started");
Serial.print("Version: "); Serial.println(ss.getVersion(), HEX);
// Start set the backlight off
ss.setBacklight(TFTSHIELD_BACKLIGHT_OFF);
// Reset the TFT
ss.tftReset();
// Initialize 1.8" TFT
tft.initR(INITR_BLACKTAB); // initialize a ST7735S chip, black tab
Serial.println("TFT OK!");
tft.fillScreen(ST77XX_CYAN);
Serial.print("Initializing SD card...");
if (!SD.begin(SD_CS)) {
Serial.println("failed!");
} else {
Serial.println("OK!");
File root = SD.open("/");
printDirectory(root, 0);
root.close();
bmpDraw("/parrot.bmp", 0, 0);
}
// Set backlight on fully
// ss.setBacklight(TFTSHIELD_BACKLIGHT_ON);
// Or you can set the backlight one third on
// ss.setBacklight(TFTSHIELD_BACKLIGHT_ON / 3);
// Or dim it up
for (int32_t i=TFTSHIELD_BACKLIGHT_OFF; i<TFTSHIELD_BACKLIGHT_ON; i+=100) {
ss.setBacklight(i);
delay(1);
}
delay(100);
tft.fillScreen(ST77XX_RED);
delay(100);
tft.fillScreen(ST77XX_GREEN);
delay(100);
tft.fillScreen(ST77XX_BLUE);
delay(100);
tft.fillScreen(ST77XX_BLACK);
tft.setTextSize(1);
tft.setTextColor(ST77XX_WHITE);
tft.setCursor(0, 0);
tft.print("Press all the buttons");
}
uint8_t buttonhistory = 0;
void loop() {
uint32_t buttons = ss.readButtons();
tft.setTextSize(3);
if(! (buttons & TFTSHIELD_BUTTON_DOWN)){
tft.setTextColor(ST77XX_RED);
tft.setCursor(0, 10);
tft.print("Down ");
buttonhistory |= 1;
}
if(! (buttons & TFTSHIELD_BUTTON_LEFT)){
tft.setTextColor(ST77XX_YELLOW);
tft.setCursor(0, 35);
tft.print("Left ");
buttonhistory |= 2;
}
if(! (buttons & TFTSHIELD_BUTTON_UP)){
tft.setTextColor(ST77XX_GREEN);
tft.setCursor(0, 60);
tft.print("Up");
buttonhistory |= 4;
}
if(! (buttons & TFTSHIELD_BUTTON_RIGHT)){
tft.setTextColor(ST77XX_BLUE);
tft.setCursor(0, 85);
tft.print("Right");
buttonhistory |= 8;
}
if(! (buttons & TFTSHIELD_BUTTON_1)){
tft.setTextColor(ST77XX_BLUE);
tft.setCursor(0, 140);
tft.print("1");
buttonhistory |= 16;
}
if(! (buttons & TFTSHIELD_BUTTON_2)){
tft.setTextColor(ST77XX_GREEN);
tft.setCursor(50, 140);
tft.print("2");
buttonhistory |= 32;
}
if(! (buttons & TFTSHIELD_BUTTON_3)){
tft.setTextColor(ST77XX_YELLOW);
tft.setCursor(100, 140);
tft.print("3");
buttonhistory |= 64;
}
if (! (buttons & TFTSHIELD_BUTTON_IN)) {
tft.setTextColor(ST77XX_MAGENTA);
tft.setCursor(0, 110);
tft.print("SELECT");
}
if (buttonhistory == 0x7F) {
bmpDraw("/parrot.bmp", 0, 0);
while (1) {
tft.invertDisplay(true);
delay(500);
tft.invertDisplay(false);
delay(500);
}
}
delay(100);
}
// This function opens a Windows Bitmap (BMP) file and
// displays it at the given coordinates. It's sped up
// by reading many pixels worth of data at a time
// (rather than pixel by pixel). Increasing the buffer
// size takes more of the Arduino's precious RAM but
// makes loading a little faster. 20 pixels seems a
// good balance.
#define BUFFPIXEL 20
void bmpDraw(char *filename, uint8_t x, uint16_t y) {
File bmpFile;
int bmpWidth, bmpHeight; // W+H in pixels
uint8_t bmpDepth; // Bit depth (currently must be 24)
uint32_t bmpImageoffset; // Start of image data in file
uint32_t rowSize; // Not always = bmpWidth; may have padding
uint8_t sdbuffer[3*BUFFPIXEL]; // pixel buffer (R+G+B per pixel)
uint8_t buffidx = sizeof(sdbuffer); // Current position in sdbuffer
boolean goodBmp = false; // Set to true on valid header parse
boolean flip = true; // BMP is stored bottom-to-top
int w, h, row, col;
uint8_t r, g, b;
uint32_t pos = 0, startTime = millis();
if((x >= tft.width()) || (y >= tft.height())) return;
Serial.println();
Serial.print(F("Loading image '"));
Serial.print(filename);
Serial.println('\'');
// Open requested file on SD card
if ((bmpFile = SD.open(filename)) == NULL) {
Serial.print(F("File not found"));
return;
}
// Parse BMP header
if(read16(bmpFile) == 0x4D42) { // BMP signature
Serial.print(F("File size: ")); Serial.println(read32(bmpFile));
(void)read32(bmpFile); // Read & ignore creator bytes
bmpImageoffset = read32(bmpFile); // Start of image data
Serial.print(F("Image Offset: ")); Serial.println(bmpImageoffset, DEC);
// Read DIB header
Serial.print(F("Header size: ")); Serial.println(read32(bmpFile));
bmpWidth = read32(bmpFile);
bmpHeight = read32(bmpFile);
if(read16(bmpFile) == 1) { // # planes -- must be '1'
bmpDepth = read16(bmpFile); // bits per pixel
Serial.print(F("Bit Depth: ")); Serial.println(bmpDepth);
if((bmpDepth == 24) && (read32(bmpFile) == 0)) { // 0 = uncompressed
goodBmp = true; // Supported BMP format -- proceed!
Serial.print(F("Image size: "));
Serial.print(bmpWidth);
Serial.print('x');
Serial.println(bmpHeight);
// BMP rows are padded (if needed) to 4-byte boundary
rowSize = (bmpWidth * 3 + 3) & ~3;
// If bmpHeight is negative, image is in top-down order.
// This is not canon but has been observed in the wild.
if(bmpHeight < 0) {
bmpHeight = -bmpHeight;
flip = false;
}
// Crop area to be loaded
w = bmpWidth;
h = bmpHeight;
if((x+w-1) >= tft.width()) w = tft.width() - x;
if((y+h-1) >= tft.height()) h = tft.height() - y;
// Set TFT address window to clipped image bounds
tft.startWrite();
tft.setAddrWindow(x, y, w, h);
for (row=0; row<h; row++) { // For each scanline...
// Seek to start of scan line. It might seem labor-
// intensive to be doing this on every line, but this
// method covers a lot of gritty details like cropping
// and scanline padding. Also, the seek only takes
// place if the file position actually needs to change
// (avoids a lot of cluster math in SD library).
if(flip) // Bitmap is stored bottom-to-top order (normal BMP)
pos = bmpImageoffset + (bmpHeight - 1 - row) * rowSize;
else // Bitmap is stored top-to-bottom
pos = bmpImageoffset + row * rowSize;
if(bmpFile.position() != pos) { // Need seek?
tft.endWrite();
bmpFile.seek(pos);
buffidx = sizeof(sdbuffer); // Force buffer reload
}
for (col=0; col<w; col++) { // For each pixel...
// Time to read more pixel data?
if (buffidx >= sizeof(sdbuffer)) { // Indeed
bmpFile.read(sdbuffer, sizeof(sdbuffer));
buffidx = 0; // Set index to beginning
tft.startWrite();
}
// Convert pixel from BMP to TFT format, push to display
b = sdbuffer[buffidx++];
g = sdbuffer[buffidx++];
r = sdbuffer[buffidx++];
tft.pushColor(tft.color565(r,g,b));
} // end pixel
} // end scanline
tft.endWrite();
Serial.print(F("Loaded in "));
Serial.print(millis() - startTime);
Serial.println(" ms");
} // end goodBmp
}
}
bmpFile.close();
if(!goodBmp) Serial.println(F("BMP format not recognized."));
}
// These read 16- and 32-bit types from the SD card file.
// BMP data is stored little-endian, Arduino is little-endian too.
// May need to reverse subscript order if porting elsewhere.
uint16_t read16(File f) {
uint16_t result;
((uint8_t *)&result)[0] = f.read(); // LSB
((uint8_t *)&result)[1] = f.read(); // MSB
return result;
}
uint32_t read32(File f) {
uint32_t result;
((uint8_t *)&result)[0] = f.read(); // LSB
((uint8_t *)&result)[1] = f.read();
((uint8_t *)&result)[2] = f.read();
((uint8_t *)&result)[3] = f.read(); // MSB
return result;
}
void printDirectory(File dir, int numTabs) {
while (true) {
File entry = dir.openNextFile();
if (! entry) {
// no more files
break;
}
for (uint8_t i = 0; i < numTabs; i++) {
Serial.print('\t');
}
Serial.print(entry.name());
if (entry.isDirectory()) {
Serial.println("/");
printDirectory(entry, numTabs + 1);
} else {
// files have sizes, directories do not
Serial.print("\t\t");
Serial.println(entry.size(), DEC);
}
entry.close();
}
}