Add manual test of camera

ThomasFarstrike · ThomasFarstrike · commit 2a12eb6f6cef · 2025-11-13T10:12:13.000+01:00
diff --git a/tests/manual_test_camera.py b/tests/manual_test_camera.py
@@ -0,0 +1,62 @@
+import unittest
+
+from mpos import App, PackageManager
+
+from camera import Camera, GrabMode, PixelFormat, FrameSize, GainCeiling
+
+class TestCompareVersions(unittest.TestCase):
+
+    def init_cam(self):
+        try:
+            cam = Camera(data_pins=[12,13,15,11,14,10,7,2],vsync_pin=6,href_pin=4,sda_pin=21,scl_pin=16,pclk_pin=9,xclk_pin=8,xclk_freq=20000000,pixel_format=PixelFormat.RGB565,powerdown_pin=-1,reset_pin=-1,frame_size=FrameSize.R240X240,grab_mode=GrabMode.LATEST)
+            return cam
+        except Exception as e:
+            #self.assertTrue(False, f"camera init received exception: {e}")
+            print(f"camera init received exception: {e}")
+            return None
+
+    def test_init_capture_deinit(self):
+        cam = self.init_cam()
+        self.assertTrue(cam is not None, "camera failed to initialize")
+        self.assertEqual(cam.get_pixel_height(), 240, "wrong pixel height")
+        self.assertEqual(cam.get_pixel_width(), 240, "wrong pixel width")
+        memview = cam.capture()
+        self.assertEqual(len(memview), 2 * 240 * 240, "capture size does not match expectations")
+        cam.deinit()
+
+    def disabled_test_multiple_runs(self):
+        for _ in range(10):
+            self.test_init_capture_deinit()
+
+    def disabled_test_init_capture_deinit_poweroff(self):
+        self.test_init_capture_deinit()
+        from machine import Pin, I2C
+        i2c = I2C(1, scl=Pin(16), sda=Pin(21), freq=100000)  # Adjust pins and frequency
+        devices = i2c.scan()
+        print([hex(addr) for addr in devices]) # finds it on 60 = 0x3C after init
+        camera_addr = 0x3C # for OV5640
+        reg_addr = 0x3008
+        reg_high = (reg_addr >> 8) & 0xFF  # 0x30
+        reg_low = reg_addr & 0xFF         # 0x08
+        power_off_command = 0x40 # Power off command Bit[6]: Software power down
+        #i2c.writeto(camera_addr, bytes([reg_high, reg_low, power_off_command]))
+        print("\nSecond capture will fail!")
+        self.test_init_capture_deinit()
+
+    def test_init_twice_capture_deinit_poweroff(self):
+        self.test_init_capture_deinit()
+        from machine import Pin, I2C
+        i2c = I2C(1, scl=Pin(16), sda=Pin(21), freq=100000)  # Adjust pins and frequency
+        devices = i2c.scan()
+        print([hex(addr) for addr in devices]) # finds it on 60 = 0x3C after init
+        camera_addr = 0x3C # for OV5640
+        reg_addr = 0x3008
+        reg_high = (reg_addr >> 8) & 0xFF  # 0x30
+        reg_low = reg_addr & 0xFF         # 0x08
+        power_off_command = 0x40 # Power off command Bit[6]: Software power down
+        #i2c.writeto(camera_addr, bytes([reg_high, reg_low, power_off_command]))
+        cam = self.init_cam()
+        self.assertTrue(cam is None, "expected camera to fail after i2c")
+        print("\nSecond capture should now work!")
+        self.test_init_capture_deinit()
+
