upload AXP313A.py for CircuitPython

CircuitPython/AXP313A.py

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+import board
+import time
+
+eOV2640 = 0
+e0V7725 = 1
+eTime6s = 0
+eTime10s = 1
+
+class AXP313A:
+    '''
+        @fn __init__
+        @brief 初始化AXP313A
+        @param i2c i2c设备
+    '''
+    def __init__(self, i2c):
+        self.i2c = i2c
+
+    def begin(self):
+        '''
+            @fn begin
+            @brief 初始化传感器
+            @return 返回初始化状态
+        '''
+        while not self.i2c.try_lock():
+            pass
+        try:
+            scan = self.i2c.scan()
+            print("scan: ", scan)
+        finally:
+            self.i2c.unlock()
+
+        for i in scan:
+            if(i == 0x36):
+                return True
+        return False
+
+    def enable_camera_power(self,camera):
+        '''
+            @fn enableCameraPower
+            @brief 使能摄像头电源
+            @param camera 摄像头选择
+        '''
+        if camera == 0:
+            self.set_camera_power(1.2,2.8)
+        else:
+            self.set_camera_power(1.8,3.3)
+
+
+    def set_camera_power(self,DVDD,AVDDorDOVDD):
+        '''
+            @fn enablePower
+            @brief 设置电压输出
+            @param DVDD DVDD电压设置,默认电压为1.5V
+            @param AVDDandDOVDD AVDD和DOVDD电压设置，默认电压为2.8V
+        '''
+        state = 0x19
+        ALDOData = 0
+        DLDOData = 0
+        if(DVDD < 0.5) or (AVDDorDOVDD < 0.5):
+            ALDOData = 0
+            DLDOData = 0
+        elif(DVDD > 3.5) or (AVDDorDOVDD > 3.5):
+            ALDOData = 31
+            DLDOData = 31
+        else:
+            ALDOData = (DVDD-0.5) * 10
+            DLDOData = (AVDDorDOVDD-0.5) *10
+        self.WriteByte(0x10, state)
+        time.sleep(0.01)
+        self.WriteByte(0x16, int(ALDOData))
+        time.sleep(0.01)
+        self.WriteByte(0x17, int(DLDOData))
+        time.sleep(0.01)
+
+    def set_shutdown_key_level_time(self,offLevelTime):
+        '''
+            @fn setShutdownKeyLevelTime
+            @brief 设置关机按键电平时间
+            @param offLevelTime 关机按键电平时间
+        '''
+        data = offLevelTime << 1
+        self.WriteByte(0x1E, data)
+        time.sleep(0.01)
+
+    def disable_power(self):
+        '''
+            @fn disablePower
+            @brief 关闭摄像头电源
+        '''
+        data = 0x01;
+        self.WriteByte(0x10, data)
+        time.sleep(0.01)
+
+    def WriteByte(self, reg, data):
+        buf = bytearray(1)
+        buf[0] = reg
+        buf.extend(bytearray([data]))
+        while not self.i2c.try_lock():
+            pass
+        try:
+            self.i2c.writeto(0x36, buf)
+        finally:
+            self.i2c.unlock()
+
+if __name__ == "__main__":
+    import busio
+
+    delay = lambda n: time.sleep(n/1000)
+
+    print("i2c init")
+    i2c = busio.I2C(scl=board.GPIO2, sda=board.GPIO1)
+    while not i2c.try_lock():
+        print("try lock");
+        delay(1000)
+    i2c.unlock()
+
+    delay(1000)
+    print("AXP313A init")
+    axp = AXP313A(i2c)
+
+    delay(1000)
+    print("AXP313A begin")
+    while not axp.begin():
+        print("init error");
+        delay(1000)
+
+    delay(1000)
+    print("AXP313A enable_camera_power")
+    axp.enable_camera_power(eOV2640) # 设置摄像头供电 power on
+
+    delay(3000)
+
+    print("AXP313A disable_power")
+    axp.disable_power() # 设置摄像头断电 power off
+
+    print("i2c deinit")
+    i2c.deinit()
+

CircuitPython/boot.py

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+'''
+说明：
+1. 修改后，使得CircuitPython可以写入到内置存储，但将不能在电脑上直接进入U盘修改文件。
+2. 在编辑器中，修改Flase为True，或者直接注释掉上面的行，就恢复原样。
+3. 修改后，需要断电重启一次生效
+'''
+
+import storage
+storage.remount("/", False)

CircuitPython/dfrobot_fireBeetle_2_board_esp32_s3_camera_demo.py

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+'''
+DFRobot FireBeetle_2_Board_ESP32_S3 摄像头演示程序
+
+使用指导：请务必参考以下网址的使用指导，否则可能会出现各种问题
+    https://mc.dfrobot.com.cn/thread-316903-1-1.html
+
+参考资料:
+    https://learn.adafruit.com/adafruit-ov5640-camera-breakout/jpeg-capture-demo
+    https://wiki.dfrobot.com.cn/_SKU_DFR0975_FireBeetle_2_Board_ESP32_S3_Advanced_Tutorial#target_12
+    https://learn.adafruit.com/circuitpython-essentials/circuitpython-storage
+'''
+
+import board
+import busio
+import time
+import espidf
+import espcamera
+import AXP313A
+
+'''
+PWDN_GPIO_NUM      = -1
+RESET_GPIO_NUM     = -1
+XCLK_GPIO_NUM      = 45
+SIOD_GPIO_NUM      = 1
+SIOC_GPIO_NUM      = 2
+
+Y9_GPIO_NUM        = 48
+Y8_GPIO_NUM        = 46
+Y7_GPIO_NUM        = 8
+Y6_GPIO_NUM        = 7
+Y5_GPIO_NUM        = 4
+Y4_GPIO_NUM        = 41
+Y3_GPIO_NUM        = 40
+Y2_GPIO_NUM        = 39
+VSYNC_GPIO_NUM     = 6
+HREF_GPIO_NUM      = 42
+PCLK_GPIO_NUM      = 5
+'''
+
+# 数据引脚定义 data pins
+CAMERA_DATA = (
+    board.GPIO39,
+    board.GPIO40,
+    board.GPIO41,
+    board.GPIO4,
+    board.GPIO7,
+    board.GPIO8,
+    board.GPIO46,
+    board.GPIO48
+)
+
+# 控制引脚定义 controll pins
+CAMERA_PCLK=board.GPIO5
+CAMERA_VSYNC=board.GPIO6
+CAMERA_HREF=board.GPIO42
+CAMERA_XCLK=board.GPIO45
+
+# 延时函数定义 delay function
+delay = lambda n: time.sleep(n/1000)
+
+print("check reserved psram")
+reserved_psram = espidf.get_reserved_psram()
+if reserved_psram<1048576:
+    print("Please config settings.toml: CIRCUITPY_RESERVED_PSRAM=1048576")
+    print("  and then reset the board")
+    raise Exception("MemoryError:")
+
+print("i2c init")
+i2c = busio.I2C(scl=board.GPIO2, sda=board.GPIO1)
+while not i2c.try_lock():
+    print("try lock");
+    delay(1000)
+i2c.unlock()
+
+delay(1000)
+print("AXP313A init")
+axp = AXP313A.AXP313A(i2c)
+
+delay(1000)
+print("AXP313A begin")
+while not axp.begin():
+    print("init error");
+    delay(1000)
+
+delay(1000)
+print("AXP313A enable_camera_power")
+axp.enable_camera_power(AXP313A.eOV2640) # 设置摄像头供电 power on
+
+delay(1000)
+
+print("Initializing camera")
+cam = espcamera.Camera(
+    data_pins=CAMERA_DATA,
+    external_clock_pin=CAMERA_XCLK,
+    pixel_clock_pin=CAMERA_PCLK,
+    vsync_pin=CAMERA_VSYNC,
+    href_pin=CAMERA_HREF,
+    pixel_format=espcamera.PixelFormat.RGB565,
+    frame_size=espcamera.FrameSize.QVGA,
+    i2c=i2c,
+    external_clock_frequency=20_000_000,
+    framebuffer_count=1)
+print("initialized")
+
+print("reconfigure")
+# for display
+#cam.reconfigure(
+#    pixel_format=espcamera.PixelFormat.RGB565,
+#    frame_size=espcamera.FrameSize.QVGA,
+#)
+#frame = cam.take(1)
+
+# for jpeg
+cam.reconfigure(
+    pixel_format=espcamera.PixelFormat.JPEG,
+    frame_size=espcamera.FrameSize.SVGA,
+)
+
+print("capture")
+jpeg = cam.take(1)
+
+print("write")
+filename = f"/test_001.jpg"
+with open(filename, "wb") as f:
+    f.write(jpeg)
+
+print("AXP313A disable_power")
+axp.disable_power() # 设置摄像头断电 power off
+
+print("i2c deinit")
+i2c.deinit()

CircuitPython/settings.toml

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+# 给相机处理预留内存
+CIRCUITPY_RESERVED_PSRAM=1048576