From 528af273c97b74a710d5f620474da91c7557591b Mon Sep 17 00:00:00 2001
From: Arslaan Pathan <arslaan@arslaancodes.com>
Date: Sun, 29 Mar 2026 21:52:37 +1300
Subject: YES IT FINALLY WATCH FACE YESSSSSSSSSSS

---
 FereFit_enterMakeDial_BLE.py | 135 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 FereFit_enterMakeDial_BLE.py

(limited to 'FereFit_enterMakeDial_BLE.py')

diff --git a/FereFit_enterMakeDial_BLE.py b/FereFit_enterMakeDial_BLE.py
new file mode 100644
index 0000000..096e986
--- /dev/null
+++ b/FereFit_enterMakeDial_BLE.py
@@ -0,0 +1,135 @@
+import asyncio
+import sys
+try:
+    from bleak import BleakScanner, BleakClient
+except ModuleNotFoundError:
+    print("Error: pip3 install bleak")
+    sys.exit(1)
+
+try:
+    from PIL import Image
+except ModuleNotFoundError:
+    print("Error: pip3 install Pillow")
+    sys.exit(1)
+
+WRITE_UUID = "6E40FC20-B5A3-F393-E0A9-E50E24DCCA9E"
+NOTIFY_UUID = "6E40FC21-B5A3-F393-E0A9-E50E24DCCA9E"
+WIDTH = 240
+HEIGHT = 296
+MTU = 148
+CHUNK_SIZE = 140
+
+def image_to_rgb565(image_path):
+    """Load an image and convert to raw RGB565 format"""
+    # Load and resize image
+    img = Image.open(image_path)
+    img = img.resize((WIDTH, HEIGHT), Image.Resampling.LANCZOS)
+    
+    # Convert to RGB if needed
+    if img.mode != 'RGB':
+        img = img.convert('RGB')
+    
+    # Convert to raw RGB565 pixels
+    pixels = bytearray()
+    for y in range(HEIGHT):
+        for x in range(WIDTH):
+            r, g, b = img.getpixel((x, y))
+            # RGB888 to RGB565
+            rgb565 = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3)
+            pixels.append((rgb565 >> 8) & 0xFF)  # High byte
+            pixels.append(rgb565 & 0xFF)         # Low byte
+    
+    return bytes(pixels)
+
+def make_header(image, chunk_size):
+    total_bytes = len(image)
+    total_packets = (total_bytes + chunk_size - 1) // chunk_size
+    pixel_sum = sum(image) & 0xFFFF
+    
+    return bytes([
+        0xE4, 0x51, 0x01, 0x00,
+        (total_packets >> 8) & 0xFF, total_packets & 0xFF,
+        (total_bytes >> 24) & 0xFF, (total_bytes >> 16) & 0xFF,
+        (total_bytes >> 8) & 0xFF, total_bytes & 0xFF,
+        0x00,
+        (chunk_size >> 8) & 0xFF, chunk_size & 0xFF,
+        0x01, 
+        0x01, 0x01, 0x00, 0x00, 0x00,
+        (pixel_sum >> 8) & 0xFF, pixel_sum & 0xFF,
+        0x01
+    ])
+
+def make_chunk(image, chunk_index, total_packets, chunk_size):
+    offset = chunk_index * chunk_size
+    data = image[offset:offset + chunk_size]
+    is_last = offset + len(data) >= len(image)
+    progress = ((chunk_index + 1) * 100) // total_packets
+    
+    packet = bytearray(MTU)
+    packet[0:4] = bytes([0xE4, 0x52, 0x01, 0x02])
+    packet[4] = ((chunk_index + 1) >> 8) & 0xFF
+    packet[5] = (chunk_index + 1) & 0xFF
+    packet[6] = (offset >> 24) & 0xFF
+    packet[7] = (offset >> 16) & 0xFF
+    packet[8] = (offset >> 8) & 0xFF
+    packet[9] = offset & 0xFF
+    packet[10] = progress
+    packet[11] = 0x01 if is_last else 0x00
+    packet[14:14 + len(data)] = data
+    
+    checksum = (sum(packet[:14]) + sum(data)) & 0xFFFF
+    packet[12] = (checksum >> 8) & 0xFF
+    packet[13] = checksum & 0xFF
+    
+    return bytes(packet)
+
+async def send_watchface(device_name, image_path):
+    print(f"Loading image: {image_path}")
+    try:
+        image = image_to_rgb565(image_path)
+        print(f"Image converted: {len(image)} bytes")
+    except Exception as e:
+        print(f"Failed to load image: {e}")
+        return
+    
+    print(f"Scanning for {device_name}...")
+    device = await BleakScanner.find_device_by_name(device_name, timeout=10)
+    if not device:
+        print("Watch not found!")
+        return
+    print(f"Found at {device.address}")
+    
+    total_packets = (len(image) + CHUNK_SIZE - 1) // CHUNK_SIZE
+    header = make_header(image, CHUNK_SIZE)
+    ack = asyncio.Event()
+    
+    def notification_handler(sender, data):
+        ack.set()
+    
+    async with BleakClient(device) as client:
+        await client.start_notify(NOTIFY_UUID, notification_handler)
+        
+        print("Sending header...")
+        await client.write_gatt_char(WRITE_UUID, header, response=False)
+        await asyncio.wait_for(ack.wait(), timeout=5.0)
+        
+        print(f"Sending {total_packets} chunks...")
+        for i in range(total_packets):
+            ack.clear()
+            chunk = make_chunk(image, i, total_packets, CHUNK_SIZE)
+            await client.write_gatt_char(WRITE_UUID, chunk, response=False)
+            try:
+                await asyncio.wait_for(ack.wait(), timeout=5.0)
+            except asyncio.TimeoutError:
+                print(f"Timeout on chunk {i}")
+            
+            if i % 100 == 0:
+                print(f"Progress: {i}/{total_packets}")
+        
+        await asyncio.sleep(2)
+        print("Done!")
+
+if __name__ == "__main__":
+    watch_name = input("Enter watch name (default: Watch ULTRA): ") or "Watch ULTRA"
+    image_path = input("Enter image file path: ")
+    asyncio.run(send_watchface(watch_name, image_path))
-- 
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