ST7735 TFT Display Support for daisy seed

examples/OLED_ST7735/Makefile

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+# Example Makefile for Daisy ST7735 display
+TARGET = OLED_ST7735
+SRCS = OLED_ST7735.cpp
+OBJS = $(SRCS:.cpp=.o)
+
+CFLAGS = -I../.. -I../../src/ -O2 -Wall
+LDFLAGS = 
+
+all: $(TARGET).bin
+
+$(TARGET).bin: $(OBJS)
+	@echo Linking $@
+	arm-none-eabi-g++ $(OBJS) $(LDFLAGS) -o $@
+
+%.o: %.cpp
+	@echo Compiling $<
+	arm-none-eabi-g++ $(CFLAGS) -c $< -o $@
+
+clean:
+	rm -f *.o *.bin

examples/OLED_ST7735/OLED_ST7735.cpp

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+// Example main for Daisy ST7735 display
+#include "daisy_seed.h"
+#include "st7735.h"
+
+using namespace daisy;
+
+OledDisplay<ST7735_4WireSpi128x160Driver> display;
+
+int main(void)
+{
+    daisy::DaisySeed seed;
+    seed.Configure();
+    OledDisplay<ST7735_4WireSpi128x160Driver>::Config display_cfg;
+    display_cfg.driver_config.transport_config.Defaults();
+    display.Init(display_cfg);
+    while(1)
+    {
+        display.Fill(false);
+        display.DrawRect(2, 2, 125, 157, true);
+        display.SetCursor(10, 20);
+        display.WriteString("ST7735 + Oopsy", Font_6x8, true);
+        display.Update();
+    }
+}

examples/OLED_ST7735/ST7735_README.md

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+# ST7735 TFT Display Support for Oopsy
+
+This adds support for **ST7735 RGB TFT displays** (65K colors) to Oopsy, as a drop-in replacement for the standard SSD130x OLED displays.
+
+## Features
+
+- 🌈 **Full RGB565 Color Support** - 65,536 colors
+- 🎨 **Colorful UI Themes** - Different color schemes for each display mode
+- 📐 **Multiple Resolutions** - Support for 128x160, 128x128, and 80x160 displays
+- 🔌 **Daisy Patch Compatible Pinout** - Works with standard Daisy Patch wiring
+- 📦 **Drop-in Replacement** - Same API as SSD130x, just change the target
+
+## Supported Screen Sizes
+
+| Target Name | Resolution | Screen Type |
+|-------------|------------|-------------|
+| `seed_st7735` | 128×160 | Standard 1.8" TFT |
+| `seed_st7735_128x128` | 128×128 | Square 1.44" TFT |
+| `seed_st7735_80x160` | 80×160 | Mini 0.96" TFT |
+
+## Color Themes by Mode
+
+| Mode | Foreground | Background | Style |
+|------|------------|------------|-------|
+| **MENU** | Cyan | Dark Blue | Cyberpunk |
+| **PARAMS** | Green | Black | Matrix |
+| **SCOPE** | Orange | Purple | Sunset |
+| **CONSOLE** | Magenta | Black | Neon |
+
+## Hardware Wiring
+
+### ST7735 Display Pinout (Daisy Seed)
+
+| ST7735 Pin | Daisy Seed Pin | Function |
+|------------|----------------|----------|
+| VCC | 3V3 | Power (3.3V) |
+| GND | GND | Ground |
+| SCL/SCK | D8 (PG11) | SPI Clock |
+| SDA/MOSI | D10 (PB5) | SPI Data |
+| DC | D9 (PB4) | Data/Command |
+| CS | D7 (PA2) | Chip Select |
+| RST/RES | D30 (PB15) | Reset |
+| BLK | 3V3 or PWM | Backlight |
+
+### Encoder Pinout (Daisy Patch Compatible)
+
+| Encoder Pin | Daisy Seed Pin |
+|-------------|----------------|
+| A | D12 |
+| B | D11 |
+| Click/SW | D0 |
+
+### Knob Pinout
+
+| Knob | Daisy Seed Pin |
+|------|----------------|
+| Knob 1 | D15 |
+| Knob 2 | D16 |
+| Knob 3 | D21 |
+| Knob 4 | D18 |
+
+## Usage with Oopsy
+
+### 1. Select the ST7735 Target
+
+In `oopsy.maxpat`, select your display size from the Target dropdown menu:
+- **seed_st7735** - for 128x160 displays
+- **seed_st7735_128x128** - for 128x128 displays
+- **seed_st7735_80x160** - for 80x160 displays
+
+### 2. Create Your gen~ Patch
+
+Use standard gen~ with `Param` objects:
+
+```
+// Example gen~ code
+Param gain(0.5, min=0, max=1);
+Param frequency(440, min=20, max=2000);
+
+in 1 left;
+out 1 output;
+
+output = left * gain;
+```
+
+### 3. Flash to Daisy
+
+Click the **Flash** button in Oopsy. The display will show your parameters with colorful themes!
+
+## Display Controls
+
+- **Long Press Encoder** (>0.5s) - Open mode selection menu
+- **Rotate Encoder** - Navigate / Select
+- **Short Press Encoder** - Confirm selection
+
+## Available Colors
+
+The driver provides these predefined colors:
+
+```cpp
+COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE,
+COLOR_CYAN, COLOR_MAGENTA, COLOR_YELLOW, COLOR_ORANGE, COLOR_GRAY,
+COLOR_PINK, COLOR_PURPLE, COLOR_LIME, COLOR_NAVY, COLOR_TEAL,
+COLOR_BROWN, COLOR_DARKGREEN, COLOR_DARKBLUE, COLOR_SKYBLUE, COLOR_GOLD
+```
+
+### Custom Colors
+
+Use `RGB565(r, g, b)` to create custom colors:
+
+```cpp
+uint16_t myColor = Driver::RGB565(255, 128, 0); // Orange
+```
+
+## Files Added/Modified
+
+### New Files
+- `source/st7735.h` - ST7735 driver with color support
+- `source/seed.st7735.json` - Target config for 128x160
+- `source/seed.st7735_128x128.json` - Target config for 128x128
+- `source/seed.st7735_80x160.json` - Target config for 80x160
+- `source/ST7735_README.md` - This documentation
+
+### Modified Files
+- `source/oopsy.js` - Added ST7735 header detection and target paths
+- `source/genlib_daisy.h` - Added color theme switching
+
+## Customizing Themes
+
+Edit `genlib_daisy.h` to change color themes:
+
+```cpp
+#ifdef OOPSY_TARGET_ST7735
+{
+    using Driver = daisy::ST7735_4WireSpi128x160Driver;
+    switch(mode) {
+        case MODE_MENU:    
+            hardware.display.GetDriver().SetTheme(
+                Driver::COLOR_CYAN,      // Foreground
+                Driver::COLOR_DARKBLUE,  // Background
+                Driver::COLOR_MAGENTA    // Accent
+            ); 
+            break;
+        // ... other modes
+    }
+}
+#endif
+```
+
+## Display Specifications
+
+| Property | Value |
+|----------|-------|
+| Color Depth | 16-bit RGB565 (65K colors) |
+| Interface | SPI (4-wire) |
+| Controller | ST7735S |
+| Refresh Rate | ~30 FPS |
+
+## Troubleshooting
+
+### Display is blank
+- Check wiring connections
+- Verify RST pin is connected to D30
+- Check backlight connection (BLK to 3V3)
+
+### Wrong colors
+- Ensure ST7735S variant (not ST7735R)
+- Check MADCTL setting in driver if colors are inverted
+
+### Encoder not working
+- Verify encoder pins: A=D12, B=D11, Click=D0
+- Check if D0 conflicts with other hardware
+
+### Screen offset issues
+- Different ST7735 modules may need offset adjustment
+- Edit `st7735.h` CASET/RASET values if needed
+
+## Author
+
+Created by **noisehoho** for the Daisy/Oopsy community.
+
+## License
+
+MIT License - Same as Oopsy

examples/OLED_ST7735/seed.st7735.json

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+{
+  "name": "seed.st7735",
+  "display": {
+    "width": 128,
+    "height": 160,
+    "driver": "ST7735_4WireSpi128x160Driver"
+  },
+  "pins": {
+    "sck": "D8",
+    "mosi": "D10",
+    "dc": "D9",
+    "cs": "D7",
+    "rst": "D30"
+  }
+}