diff --git a/test_dll_minimal.py b/test_dll_minimal.py
deleted file mode 100644
index d517893..0000000
--- a/test_dll_minimal.py
+++ /dev/null
@@ -1,78 +0,0 @@
-"""Minimal test: start lcgamboa QEMU DLL with blink firmware and collect output."""
-import ctypes, os, sys, threading, time, pathlib
-
-MINGW = r"C:\msys64\mingw64\bin"
-DLL   = r"E:\Hardware\wokwi_clon\backend\app\services\libqemu-xtensa.dll"
-FW    = r"E:\Hardware\wokwi_clon\test\esp32-emulator\binaries\esp32_blink.ino.merged.bin"
-
-sys.path.insert(0, r"E:\Hardware\wokwi_clon\backend")
-from app.services.esp32_lib_bridge import (
-    _WRITE_PIN, _DIR_PIN, _I2C_EVENT, _SPI_EVENT, _UART_TX, _RMT_EVENT,
-    _CallbacksT, _PINMAP,
-)
-
-print("=== Loading DLL ===")
-os.add_dll_directory(MINGW)
-lib = ctypes.CDLL(DLL)
-print("  OK")
-
-uart_buf   = bytearray()
-gpio_events = []
-
-def on_write_pin(pin, value):
-    gpio_events.append((pin, value))
-    print(f"  [GPIO] pin={pin} value={value}")
-
-def on_dir_pin(pin, dir_):
-    pass
-
-def on_uart_tx(uart_id, byte_val):
-    uart_buf.append(byte_val)
-    if byte_val == ord('\n'):
-        line = uart_buf.decode("utf-8", errors="replace").rstrip()
-        uart_buf.clear()
-        print(f"  [UART] {line}")
-
-cb_write = _WRITE_PIN(on_write_pin)
-cb_dir   = _DIR_PIN(on_dir_pin)
-cb_i2c   = _I2C_EVENT(lambda *a: 0)
-cb_spi   = _SPI_EVENT(lambda *a: 0)
-cb_uart  = _UART_TX(on_uart_tx)
-cb_rmt   = _RMT_EVENT(lambda *a: None)
-
-cbs = _CallbacksT(
-    picsimlab_write_pin     = cb_write,
-    picsimlab_dir_pin       = cb_dir,
-    picsimlab_i2c_event     = cb_i2c,
-    picsimlab_spi_event     = cb_spi,
-    picsimlab_uart_tx_event = cb_uart,
-    pinmap                  = ctypes.cast(_PINMAP, ctypes.c_void_p).value,
-    picsimlab_rmt_event     = cb_rmt,
-)
-_keep_alive = (cbs, cb_write, cb_dir, cb_i2c, cb_spi, cb_uart, cb_rmt)
-
-print("=== Registering callbacks ===")
-lib.qemu_picsimlab_register_callbacks(ctypes.byref(cbs))
-
-fw_bytes = FW.encode()
-args = [b"qemu", b"-M", b"esp32-picsimlab", b"-nographic",
-        b"-drive", b"file=" + fw_bytes + b",if=mtd,format=raw"]
-argc = len(args)
-argv = (ctypes.c_char_p * argc)(*args)
-
-print("=== Calling qemu_init ===")
-lib.qemu_init(argc, argv, None)
-print("=== qemu_init returned, starting main_loop thread ===")
-
-t = threading.Thread(target=lib.qemu_main_loop, daemon=True, name="qemu-test")
-t.start()
-
-print("=== Waiting 20s for output ===")
-time.sleep(20)
-
-print(f"\n=== Results ===")
-print(f"UART bytes: {len(uart_buf)} buffered, output so far:")
-print(f"GPIO events: {len(gpio_events)}")
-for ev in gpio_events[:20]:
-    print(f"  pin={ev[0]} value={ev[1]}")
-print(f"Thread alive: {t.is_alive()}")