diff --git a/test/test_espnow_receive.py b/test/test_espnow_receive.py
new file mode 100644
index 0000000..adb7584
--- /dev/null
+++ b/test/test_espnow_receive.py
@@ -0,0 +1,653 @@
+#!/usr/bin/env python3
+"""Test ESPNow receive functionality - runs on MicroPython device."""
+import json
+import utime
+from settings import Settings
+from patterns import Patterns
+from utils import convert_and_reorder_colors
+
+
+class MockESPNow:
+    """Mock ESPNow for testing that can send messages."""
+    def __init__(self):
+        self.messages = []
+        self.active_state = False
+    
+    def active(self, state):
+        self.active_state = state
+    
+    def any(self):
+        """Return True if there are messages."""
+        return len(self.messages) > 0
+    
+    def recv(self):
+        """Receive a message (removes it from queue)."""
+        if self.messages:
+            return self.messages.pop(0)
+        return None, None
+    
+    def send_message(self, host, msg_data):
+        """Send a message by adding it to the queue (testing helper)."""
+        if isinstance(msg_data, dict):
+            msg = json.dumps(msg_data)
+        else:
+            msg = msg_data
+        self.messages.append((host, msg))
+    
+    def clear(self):
+        """Clear all messages (testing helper)."""
+        self.messages = []
+
+
+from machine import WDT
+
+def get_wdt():
+    """Get a real WDT instance for tests."""
+    return WDT(timeout=10000)  # 10 second timeout for tests
+
+
+def run_main_loop_iterations(espnow, patterns, settings, wdt, max_iterations=10):
+    """Run main loop iterations until no messages or max reached."""
+    iterations = 0
+    results = []
+    
+    while iterations < max_iterations:
+        wdt.feed()
+        patterns.tick()
+        
+        if espnow.any():
+            host, msg = espnow.recv()
+            data = json.loads(msg)
+            
+            if data.get("v") != "1":
+                results.append(("version_rejected", data))
+                continue
+            
+            if "presets" in data:
+                for name, preset_data in data["presets"].items():
+                    # Convert hex color strings to RGB tuples and reorder based on device color order
+                    if "colors" in preset_data:
+                        preset_data["colors"] = convert_and_reorder_colors(preset_data["colors"], settings)
+                    patterns.edit(name, preset_data)
+                results.append(("presets_processed", list(data["presets"].keys())))
+            
+            if settings.get("name") in data.get("select", {}):
+                select_list = data["select"][settings.get("name")]
+                # Select value is always a list: ["preset_name"] or ["preset_name", step]
+                if select_list:
+                    preset_name = select_list[0]
+                    step = select_list[1] if len(select_list) > 1 else None
+                    if patterns.select(preset_name, step=step):
+                        results.append(("selected", preset_name))
+        
+        iterations += 1
+        
+        # Stop if no more messages
+        if not espnow.any():
+            break
+    
+    return results
+
+
+def test_version_check():
+    """Test that messages with wrong version are rejected."""
+    print("Test 1: Version check")
+    settings = Settings()
+    patterns = Patterns(settings["led_pin"], settings["num_leds"])
+    mock_espnow = MockESPNow()
+    wdt = get_wdt()
+    
+    # Send message with wrong version
+    mock_espnow.send_message(b"\xaa\xaa\xaa\xaa\xaa\xaa", {"v": "2", "presets": {"test": {"pattern": "on"}}})
+    results = run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    
+    assert len([r for r in results if r[0] == "version_rejected"]) > 0, "Should reject wrong version"
+    assert "test" not in patterns.presets, "Preset should not be created"
+    print("  ✓ Version check passed")
+    
+    # Send message with correct version
+    mock_espnow.clear()
+    mock_espnow.send_message(b"\xaa\xaa\xaa\xaa\xaa\xaa", {"v": "1", "presets": {"test": {"pattern": "on"}}})
+    results = run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    
+    assert len([r for r in results if r[0] == "presets_processed"]) > 0, "Should process correct version"
+    assert "test" in patterns.presets, "Preset should be created"
+    print("  ✓ Correct version accepted")
+
+
+def test_preset_creation():
+    """Test preset creation from ESPNow messages."""
+    print("\nTest 2: Preset creation")
+    settings = Settings()
+    patterns = Patterns(settings["led_pin"], settings["num_leds"])
+    mock_espnow = MockESPNow()
+    wdt = get_wdt()
+    
+    msg = {
+        "v": "1",
+        "presets": {
+            "test_blink": {
+                "pattern": "blink",
+                "colors": ["#FF0000", "#00FF00"],
+                "delay": 200,
+                "brightness": 128
+            },
+            "test_rainbow": {
+                "pattern": "rainbow",
+                "delay": 100,
+                "n1": 2
+            }
+        }
+    }
+    
+    mock_espnow.send_message(b"\xbb\xbb\xbb\xbb\xbb\xbb", msg)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    
+    assert "test_blink" in patterns.presets, "test_blink preset should exist"
+    assert "test_rainbow" in patterns.presets, "test_rainbow preset should exist"
+    
+    # Check preset values
+    blink_preset = patterns.presets["test_blink"]
+    assert blink_preset.pattern == "blink", "Pattern should be blink"
+    assert blink_preset.delay == 200, "Delay should be 200"
+    assert blink_preset.brightness == 128, "Brightness should be 128"
+    
+    rainbow_preset = patterns.presets["test_rainbow"]
+    assert rainbow_preset.pattern == "rainbow", "Pattern should be rainbow"
+    assert rainbow_preset.n1 == 2, "n1 should be 2"
+    
+    print("  ✓ Presets created correctly")
+
+
+def test_color_conversion():
+    """Test hex color string conversion and reordering."""
+    print("\nTest 3: Color conversion")
+    settings = Settings()
+    settings["color_order"] = "rgb"  # Default RGB order
+    patterns = Patterns(settings["led_pin"], settings["num_leds"])
+    mock_espnow = MockESPNow()
+    wdt = get_wdt()
+    
+    msg = {
+        "v": "1",
+        "presets": {
+            "test_colors": {
+                "pattern": "on",
+                "colors": ["#FF0000", "#00FF00", "#0000FF"]  # Red, Green, Blue
+            }
+        }
+    }
+    
+    mock_espnow.send_message(b"\xcc\xcc\xcc\xcc\xcc\xcc", msg)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    
+    preset = patterns.presets["test_colors"]
+    assert len(preset.colors) == 3, "Should have 3 colors"
+    assert preset.colors[0] == (255, 0, 0), "First color should be red (255,0,0)"
+    assert preset.colors[1] == (0, 255, 0), "Second color should be green (0,255,0)"
+    assert preset.colors[2] == (0, 0, 255), "Third color should be blue (0,0,255)"
+    print("  ✓ Colors converted correctly (RGB order)")
+    
+    # Test GRB order
+    settings["color_order"] = "grb"
+    patterns2 = Patterns(settings["led_pin"], settings["num_leds"])
+    mock_espnow2 = MockESPNow()
+    msg2 = {
+        "v": "1",
+        "presets": {
+            "test_grb": {
+                "pattern": "on",
+                "colors": ["#FF0000"]  # Red in RGB, should become (0, 255, 0) in GRB
+            }
+        }
+    }
+    mock_espnow2.send_message(b"\xdd\xdd\xdd\xdd\xdd\xdd", msg2)
+    wdt2 = get_wdt()
+    run_main_loop_iterations(mock_espnow2, patterns2, settings, wdt2)
+    preset2 = patterns2.presets["test_grb"]
+    assert preset2.colors[0] == (0, 255, 0), "GRB: Red should become green (0,255,0)"
+    print("  ✓ Colors reordered correctly (GRB order)")
+
+
+def test_preset_update():
+    """Test that editing an existing preset updates it."""
+    print("\nTest 4: Preset update")
+    settings = Settings()
+    patterns = Patterns(settings["led_pin"], settings["num_leds"])
+    mock_espnow = MockESPNow()
+    wdt = get_wdt()
+    
+    # Create initial preset
+    msg1 = {
+        "v": "1",
+        "presets": {
+            "test_update": {
+                "pattern": "blink",
+                "delay": 100,
+                "brightness": 64
+            }
+        }
+    }
+    mock_espnow.send_message(b"\xee\xee\xee\xee\xee\xee", msg1)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.presets["test_update"].delay == 100, "Initial delay should be 100"
+    
+    # Update preset
+    mock_espnow.clear()
+    msg2 = {
+        "v": "1",
+        "presets": {
+            "test_update": {
+                "pattern": "blink",
+                "delay": 200,
+                "brightness": 128
+            }
+        }
+    }
+    mock_espnow.send_message(b"\xff\xff\xff\xff\xff\xff", msg2)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.presets["test_update"].delay == 200, "Updated delay should be 200"
+    assert patterns.presets["test_update"].brightness == 128, "Updated brightness should be 128"
+    print("  ✓ Preset updated correctly")
+
+
+def test_select():
+    """Test preset selection."""
+    print("\nTest 5: Preset selection")
+    settings = Settings()
+    settings["name"] = "device1"
+    patterns = Patterns(settings["led_pin"], settings["num_leds"])
+    mock_espnow = MockESPNow()
+    wdt = get_wdt()
+    
+    # Create presets
+    msg1 = {
+        "v": "1",
+        "presets": {
+            "preset1": {"pattern": "on", "colors": [(255, 0, 0)]},
+            "preset2": {"pattern": "rainbow", "delay": 50}
+        }
+    }
+    mock_espnow.send_message(b"\x11\x11\x11\x11\x11\x11", msg1)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    
+    # Select preset
+    mock_espnow.clear()
+    msg2 = {
+        "v": "1",
+        "select": {
+            "device1": ["preset1"],
+            "device2": ["preset2"]
+        }
+    }
+    mock_espnow.send_message(b"\x22\x22\x22\x22\x22\x22", msg2)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.selected == "preset1", "Should select preset1"
+    print("  ✓ Preset selected correctly")
+
+
+def test_full_message():
+    """Test a full message with presets and select."""
+    print("\nTest 6: Full message (presets + select)")
+    settings = Settings()
+    settings["name"] = "test_device"
+    patterns = Patterns(settings["led_pin"], settings["num_leds"])
+    mock_espnow = MockESPNow()
+    wdt = get_wdt()
+    
+    msg = {
+        "v": "1",
+        "presets": {
+            "my_preset": {
+                "pattern": "pulse",
+                "colors": ["#FF0000", "#00FF00"],
+                "delay": 150,
+                "n1": 500,
+                "n2": 200,
+                "n3": 500
+            }
+        },
+        "select": {
+            "test_device": ["my_preset"],
+            "other_device": ["other_preset"]
+        }
+    }
+    
+    mock_espnow.send_message(b"\x44\x44\x44\x44\x44\x44", msg)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    
+    assert "my_preset" in patterns.presets, "Preset should be created"
+    assert patterns.selected == "my_preset", "Preset should be selected"
+    
+    preset = patterns.presets["my_preset"]
+    assert preset.pattern == "pulse", "Pattern should be pulse"
+    assert preset.delay == 150, "Delay should be 150"
+    assert preset.n1 == 500, "n1 should be 500"
+    print("  ✓ Full message processed correctly")
+
+
+def test_switch_presets():
+    """Test switching between different presets."""
+    print("\nTest 7: Switch between presets")
+    settings = Settings()
+    settings["name"] = "switch_device"
+    patterns = Patterns(settings["led_pin"], settings["num_leds"])
+    mock_espnow = MockESPNow()
+    wdt = get_wdt()
+    
+    # Create multiple presets
+    msg1 = {
+        "v": "1",
+        "presets": {
+            "preset_blink": {"pattern": "blink", "delay": 200, "colors": [(255, 0, 0)]},
+            "preset_rainbow": {"pattern": "rainbow", "delay": 100, "n1": 2},
+            "preset_pulse": {"pattern": "pulse", "delay": 150, "n1": 500, "n2": 200, "n3": 500}
+        }
+    }
+    mock_espnow.send_message(b"\x55\x55\x55\x55\x55\x55", msg1)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    
+    # Select and run first preset for 2 seconds
+    mock_espnow.clear()
+    msg2 = {
+        "v": "1",
+        "select": {
+            "switch_device": ["preset_blink"]
+        }
+    }
+    mock_espnow.send_message(b"\x66\x66\x66\x66\x66\x66", msg2)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.selected == "preset_blink", "Should select preset_blink"
+    print("  ✓ Selected preset_blink, running for 2 seconds...")
+    start = utime.ticks_ms()
+    while utime.ticks_diff(utime.ticks_ms(), start) < 2000:
+        wdt.feed()
+        patterns.tick()
+        utime.sleep_ms(10)
+    
+    # Switch to second preset and run for 2 seconds
+    mock_espnow.clear()
+    msg3 = {
+        "v": "1",
+        "select": {
+            "switch_device": ["preset_rainbow"]
+        }
+    }
+    mock_espnow.send_message(b"\x77\x77\x77\x77\x77\x77", msg3)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.selected == "preset_rainbow", "Should switch to preset_rainbow"
+    print("  ✓ Switched to preset_rainbow, running for 2 seconds...")
+    start = utime.ticks_ms()
+    while utime.ticks_diff(utime.ticks_ms(), start) < 2000:
+        wdt.feed()
+        patterns.tick()
+        utime.sleep_ms(10)
+    
+    # Switch to third preset and run for 2 seconds
+    mock_espnow.clear()
+    msg4 = {
+        "v": "1",
+        "select": {
+            "switch_device": ["preset_pulse"]
+        }
+    }
+    mock_espnow.send_message(b"\x88\x88\x88\x88\x88\x88", msg4)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.selected == "preset_pulse", "Should switch to preset_pulse"
+    print("  ✓ Switched to preset_pulse, running for 2 seconds...")
+    start = utime.ticks_ms()
+    while utime.ticks_diff(utime.ticks_ms(), start) < 2000:
+        wdt.feed()
+        patterns.tick()
+        utime.sleep_ms(10)
+    
+    # Switch back to first preset and run for 2 seconds
+    mock_espnow.clear()
+    msg5 = {
+        "v": "1",
+        "select": {
+            "switch_device": ["preset_blink"]
+        }
+    }
+    mock_espnow.send_message(b"\x99\x99\x99\x99\x99\x99", msg5)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.selected == "preset_blink", "Should switch back to preset_blink"
+    print("  ✓ Switched back to preset_blink, running for 2 seconds...")
+    start = utime.ticks_ms()
+    while utime.ticks_diff(utime.ticks_ms(), start) < 2000:
+        wdt.feed()
+        patterns.tick()
+        utime.sleep_ms(10)
+    
+    print("  ✓ Preset switching works correctly")
+
+
+def test_beat_functionality():
+    """Test beat functionality - calling select() again with same preset restarts pattern."""
+    print("\nTest 8: Beat functionality")
+    settings = Settings()
+    settings["name"] = "beat_device"
+    patterns = Patterns(settings["led_pin"], settings["num_leds"])
+    mock_espnow = MockESPNow()
+    wdt = get_wdt()
+    
+    # Create presets with manual mode
+    msg1 = {
+        "v": "1",
+        "presets": {
+            "beat_rainbow": {"pattern": "rainbow", "delay": 100, "n1": 1, "auto": False},
+            "beat_chase": {"pattern": "chase", "delay": 200, "n1": 4, "n2": 4, "n3": 2, "n4": 1, "auto": False},
+            "beat_pulse": {"pattern": "pulse", "delay": 150, "n1": 300, "n2": 100, "n3": 300, "auto": False}
+        }
+    }
+    mock_espnow.send_message(b"\xaa\xaa\xaa\xaa\xaa\xaa", msg1)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    
+    # Test 1: Beat with rainbow (manual mode) - should advance one step per beat
+    print("  Test 8.1: Beat with rainbow (manual mode)")
+    patterns.step = 0
+    mock_espnow.clear()
+    msg2 = {
+        "v": "1",
+        "select": {
+            "beat_device": ["beat_rainbow"]
+        }
+    }
+    mock_espnow.send_message(b"\xbb\xbb\xbb\xbb\xbb\xbb", msg2)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.selected == "beat_rainbow", "Should select beat_rainbow"
+    initial_step = patterns.step
+    
+    # First beat - advance one step
+    mock_espnow.clear()
+    mock_espnow.send_message(b"\xcc\xcc\xcc\xcc\xcc\xcc", msg2)  # Same select message = beat
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt, max_iterations=5)
+    # tick() is already called in run_main_loop_iterations, so step should be incremented
+    assert patterns.step == (initial_step + 1) % 256, f"Step should increment from {initial_step} to {(initial_step + 1) % 256}, got {patterns.step}"
+    
+    # Second beat - advance another step
+    mock_espnow.clear()
+    mock_espnow.send_message(b"\xdd\xdd\xdd\xdd\xdd\xdd", msg2)  # Beat again
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt, max_iterations=5)
+    assert patterns.step == (initial_step + 2) % 256, f"Step should increment to {(initial_step + 2) % 256}, got {patterns.step}"
+    print("    ✓ Rainbow beat advances one step per beat")
+    
+    # Test 2: Beat with chase (manual mode) - should advance one step per beat
+    print("  Test 8.2: Beat with chase (manual mode)")
+    patterns.step = 0
+    mock_espnow.clear()
+    msg3 = {
+        "v": "1",
+        "select": {
+            "beat_device": ["beat_chase"]
+        }
+    }
+    mock_espnow.send_message(b"\xee\xee\xee\xee\xee\xee", msg3)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.selected == "beat_chase", "Should select beat_chase"
+    initial_step = patterns.step
+    
+    # First beat
+    mock_espnow.clear()
+    mock_espnow.send_message(b"\xff\xff\xff\xff\xff\xff", msg3)  # Beat
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt, max_iterations=5)
+    # tick() is already called in run_main_loop_iterations
+    assert patterns.step == initial_step + 1, f"Chase step should increment from {initial_step} to {initial_step + 1}, got {patterns.step}"
+    
+    # Second beat
+    mock_espnow.clear()
+    mock_espnow.send_message(b"\x11\x11\x11\x11\x11\x11", msg3)  # Beat again
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt, max_iterations=5)
+    assert patterns.step == initial_step + 2, f"Chase step should increment to {initial_step + 2}, got {patterns.step}"
+    print("    ✓ Chase beat advances one step per beat")
+    
+    # Test 3: Beat with pulse (manual mode) - should restart full cycle
+    print("  Test 8.3: Beat with pulse (manual mode)")
+    mock_espnow.clear()
+    msg4 = {
+        "v": "1",
+        "select": {
+            "beat_device": ["beat_pulse"]
+        }
+    }
+    mock_espnow.send_message(b"\x22\x22\x22\x22\x22\x22", msg4)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.selected == "beat_pulse", "Should select beat_pulse"
+    assert patterns.generator is not None, "Generator should be active"
+    
+    # First beat - should restart generator
+    initial_generator = patterns.generator
+    mock_espnow.clear()
+    mock_espnow.send_message(b"\x33\x33\x33\x33\x33\x33", msg4)  # Beat
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    assert patterns.generator is not None, "Generator should still be active after beat"
+    assert patterns.generator != initial_generator, "Generator should be restarted (new instance)"
+    print("    ✓ Pulse beat restarts generator for full cycle")
+    
+    # Test 4: Multiple beats in sequence
+    print("  Test 8.4: Multiple beats in sequence")
+    patterns.step = 0
+    mock_espnow.clear()
+    mock_espnow.send_message(b"\x44\x44\x44\x44\x44\x44", msg2)  # Select rainbow
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    
+    # Send 5 beats
+    for i in range(5):
+        mock_espnow.clear()
+        mock_espnow.send_message(b"\x55\x55\x55\x55\x55\x55", msg2)  # Beat
+        run_main_loop_iterations(mock_espnow, patterns, settings, wdt, max_iterations=5)
+        # tick() is already called in run_main_loop_iterations
+        wdt.feed()
+        utime.sleep_ms(50)
+    
+    assert patterns.step == 5, f"After 5 beats, step should be 5, got {patterns.step}"
+    print("    ✓ Multiple beats work correctly")
+    
+    print("  ✓ Beat functionality works correctly")
+
+
+def test_select_with_step():
+    """Test selecting a preset with an explicit step value."""
+    print("\nTest 9: Select with step value")
+    settings = Settings()
+    settings["name"] = "step_device"
+    patterns = Patterns(settings["led_pin"], settings["num_leds"])
+    mock_espnow = MockESPNow()
+    wdt = get_wdt()
+    
+    # Create preset
+    msg1 = {
+        "v": "1",
+        "presets": {
+            "step_preset": {"pattern": "rainbow", "delay": 100, "n1": 1, "auto": False}
+        }
+    }
+    mock_espnow.send_message(b"\xaa\xaa\xaa\xaa\xaa\xaa", msg1)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt)
+    
+    # Select with explicit step value
+    mock_espnow.clear()
+    msg2 = {
+        "v": "1",
+        "select": {
+            "step_device": ["step_preset", 10]
+        }
+    }
+    mock_espnow.send_message(b"\xbb\xbb\xbb\xbb\xbb\xbb", msg2)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt, max_iterations=2)
+    # Ensure tick() is called after select() to advance the step
+    patterns.tick()
+    
+    assert patterns.selected == "step_preset", "Should select step_preset"
+    # Step is set to 10, then tick() advances it, so it should be 11
+    assert patterns.step == 11, f"Step should be set to 10 then advanced to 11 by tick(), got {patterns.step}"
+    print("  ✓ Step value set correctly")
+    
+    # Select without step (should use default behavior)
+    mock_espnow.clear()
+    msg3 = {
+        "v": "1",
+        "select": {
+            "step_device": ["step_preset"]
+        }
+    }
+    mock_espnow.send_message(b"\xcc\xcc\xcc\xcc\xcc\xcc", msg3)
+    initial_step = patterns.step  # Should be 11
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt, max_iterations=2)
+    # Ensure tick() is called after select() to advance the step
+    patterns.tick()
+    # Since it's the same preset, step should not be reset, but tick() will advance it
+    # So step should be initial_step + 1 (one tick call)
+    assert patterns.step == initial_step + 1, f"Step should advance from {initial_step} to {initial_step + 1} (not reset), got {patterns.step}"
+    print("  ✓ Step preserved when selecting same preset without step (tick advances it)")
+    
+    # Select different preset with step
+    patterns.edit("other_preset", {"pattern": "rainbow", "auto": False})
+    mock_espnow.clear()
+    msg4 = {
+        "v": "1",
+        "select": {
+            "step_device": ["other_preset", 5]
+        }
+    }
+    mock_espnow.send_message(b"\xdd\xdd\xdd\xdd\xdd\xdd", msg4)
+    run_main_loop_iterations(mock_espnow, patterns, settings, wdt, max_iterations=2)
+    # Ensure tick() is called after select() to advance the step
+    patterns.tick()
+    
+    assert patterns.selected == "other_preset", "Should select other_preset"
+    # Step is set to 5, then tick() advances it, so it should be 6
+    assert patterns.step == 6, f"Step should be set to 5 then advanced to 6 by tick(), got {patterns.step}"
+    print("  ✓ Step set correctly when switching presets")
+
+
+def main():
+    """Run all tests."""
+    print("=" * 60)
+    print("ESPNow Receive Functionality Tests")
+    print("=" * 60)
+    
+    try:
+        test_version_check()
+        test_preset_creation()
+        test_color_conversion()
+        test_preset_update()
+        test_select()
+        test_full_message()
+        test_switch_presets()
+        test_beat_functionality()
+        test_select_with_step()
+        
+        print("\n" + "=" * 60)
+        print("All tests passed! ✓")
+        print("=" * 60)
+    except AssertionError as e:
+        print("\n✗ Test failed:", e)
+        raise
+    except Exception as e:
+        print("\n✗ Unexpected error:", e)
+        raise
+
+
+if __name__ == "__main__":
+    main()