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import asyncio
import sys
try:
from bleak import BleakScanner, BleakClient
except ModuleNotFoundError:
print("Error importing bleak, are you sure you installed it?")
print("Try running the following command: \"pip3 install bleak\"")
print("If that fails, try this: \"pip3 install bleak --break-system-packages\"")
sys.exit(1)
WRITE_UUID = "6E40FC20-B5A3-F393-E0A9-E50E24DCCA9E"
async def send_message(device_name: str, message: str, msg_type: int = 1):
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}")
encoded = message.encode('utf-8')
chunks = [encoded[i:i+17] for i in range(0, len(encoded), 17)]
async with BleakClient(device) as client:
print("Enabling all message notification settings...")
settings = bytes([0x02, 0x02, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 3])
await client.write_gatt_char(WRITE_UUID, settings)
await asyncio.sleep(1)
for i, chunk in enumerate(chunks):
packet = bytes([0x23, i, msg_type]) + chunk
if i == len(chunks) - 1:
packet = packet + bytes([0xFF])
print(f"Sending chunk {i}: {packet.hex()}")
try:
await client.write_gatt_char(WRITE_UUID, packet)
print(f"Sent chunk {i}")
except Exception as e:
print(f"Failed to send chunk {i}: {e}")
await asyncio.sleep(5)
if __name__ == "__main__":
watch_name = input("Enter watch name (default: Watch ULTRA): ") or "Watch ULTRA"
message = input("Enter message to send: ")
asyncio.run(send_message(watch_name, message))
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