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ada0802，Adafruit 1.8"Color TFT 擴展板V2，帶microSD、Joystick

［Revision History］修改：

　　＊As of September 13, 2023 - We've updated this PCB with Adafruit Pinguin to make a lovely and legible silkscreen - you may get the new PCB or the older version with vector fonts - both are identical other than the fancy silkscreen.

　　＊As of August 19, 2020 - we now include a handy rubber knob cover for the joystick to make it easier to use!

〔Specifications〕規格:

• 1.8" diagonal LCD TFT display
• Physical dimensions: 2.71" (69mm) width, 2.1" (53.5mm) height, 0.27" (6.94mm) thickness (top of joystick)
• 128x160 resolution, 18-bit (262,144) color
• 4 wire SPI digital interface
• Built-in microSD slot - uses 2 more digital lines
• 5V compatible! Use with 3.3V or 5V logic Arduinos
• Onboard 3.3V @ 150mA LDO regulator
• 2 white LED backlight, transistor connected. PWM controlled via I2C seesaw chip
• Comes with header, requires soldering!
• Display current draw is mostly based on the backlight, with full backlight the current draw is ~100mA, this does not include the SD Card. SD cards can draw 20-100mA based on read/write. Measure current draw in circuit to get precise numbers.

Product Dimensions: 68.5mm x 53.0mm x 11.8mm / 2.7" x 2.1" x 0.5"

Product Weight: 22.0g / 0.8oz

　　This lovely little shield is the best way to add a small, colorful and bright display to any project. We took our popular 1.8" TFT breakout board and remixed it into an Arduino shield complete with microSD card slot and a 5-way joystick navigation switch and three selection buttons! Since the display uses only 4 pins to communicate and has its own pixel-addressable frame buffer, it can be used easily to add a display & interface without exhausting the memory or pins.

　　New! We've updated this shield to be 'Arduino R3' format compatible so you can now use it with any and all Arduinos or Metros - including the Metro M0 or M4, Arduino Mega, Zero, etc. We also use Adafruit seesaw for the TFT backlight, TFT reset, and button inputs - you can query the buttons and joystick over I2C now, so only 2 pins are needed to communicate with all 8 switches.

　　The 1.8" display has 128x160 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!).

　　The shield 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 its safe to use with 3V or 5V Arduino compatibles. We also had some space left over so we placed a microSD card holder (so you can easily load full color bitmaps from a FAT16/FAT32 formatted microSD card), a 5-way navigation switch (left, right, up, down, select) and three tactile buttons marked A BC. The microSD card is not included, but you can pick one up here.

　　If you just want to display text, shapes, lines, pixels, etc the shield uses the SPI pins (SCK/MOSI/MISO), I2C pins (SDA & SCL) and digital #8. For the microSD card, you'll also give up Digital #4. This shield works with any Arduino UNO and compatibles, Mega, Zero, etc. If it's shield compatible, you're good to go.

　　Comes as a fully assembled and tested shield with the display, microsd card holder and nav switch as well as a stick of 0.1" header. To finish up and use, you will need to solder on the header onto the shield PCB, a quick 10 minute task.

　　Of course, we wouldn't just leave you with a datasheet and a "good luck!" - we've written a full open source graphics library that can draw pixels, lines, rectangles, circles, text and bitmaps as well as example code and a wiring tutorial. The code is written for Arduino but can be easily ported to your favorite microcontroller!　當然，我們不會只給您留下數據表和“祝你好運”——我們已經編寫了一個完整的開源圖形庫，可以繪製圖元、線條、矩形、圓、文本和位陣圖，以及示例代碼和接線教程。該代碼是為 Arduino 編寫的，但可以輕鬆移植到您最喜歡的微控制器上！