ImDuino

ImGui on Arduino example

Use the

M5Stack

By default, the full screen is used with 8bpp (RGB332) color.

Requirements

1. An M5Stack device wih configured display, such as
   • Core
   • Core2
   • CoreS3
   • Cardputer (Requires additional Cardputer library)
2. Installed M5Unified and M5GFX libraries
3. Uncomment #define IMDUINO_M5GFX at the top of ImDuino.ino

Options

• Change SCREEN_COLOR to other lgfx-defined colors. Note: attempting to use more than 8bpp may result in a frame buffer larger than the maximum heap allocation size.
• Adjust screen.createSprite( M5.Display.width(), M5.Display.height()) to a smaller portion of the screen.
• Enable alphablending during rasterization by changing using ColorRaster_t = ColorDisplay_t to a color with an alpha channel e.g. color16_alpha8_t or color32_t. This will more than double the frame raster time.
• Uncomment screen.setPsram( true ) to enable larger frame buffers. Note: this is untested and will be slower if it works.

TFT_22_ILI9225 220x176 16bpp TFT

Requirements

1. The TFT_22_ILI9225 screen and Nkawu's TFT_22_ILI9225 library
2. An Arduino with SPI (this example was designed for an ESP32-WROOM-32 "WeMos WiFi & Bluetooth Battery")
3. Uncomment #define IMDUINO_TFT_22_ILI9225 at the top of ImDuino.ino

Setting up hardware

ImDuino is configured by default to use:

• Pin 32 for LED
• Pin 33 for reset
• Pin 27 for RS
• Pin 15 for CS
• Pin 14 for clock
• Pin 13 for SDI

These can be changed by modifying the following constants in ImDuino.ino:

const uint8_t TFTLED = 32;
const uint8_t TFTRST = 33;
const uint8_t TFTRS  = 27;
const uint8_t TFTCS  = 15;
const uint8_t TFTCLK = 14;
const uint8_t TFTSDI = 13;

SSD1306 128x64 1bpp OLED

Requirements

1. The SSD1306 screen and Adafruit's SSD1306 library
2. An Arduino with I2C (this example was designed for an ESP32-WROOM-32 "WiFi & Bluetooth Battery OLED")
3. Uncomment #define IMDUINO_SSD1306 at the top of ImDuino.ino

Setting up hardware

ImDuino is configured by default to use:

• Pin 4 for SCL (Serial Clock Line)
• Pin 5 for SDA (Serial Data Line)
• No reset pin
• Address 0x3C

These can be changed by modifying the following constants in ImDuino.ino:

const uint8_t OLEDSDA  = 5;
const uint8_t OLEDSCL  = 4;
const int8_t OLEDRST   = -1;
const uint8_t OLEDADDR = 0x3C;