251121
This commit is contained in:
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134384051f
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import utime
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from machine import Pin
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from utils import MTS102
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# 配置引脚
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led = Pin(0, Pin.OUT)
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toggle_switch = MTS102(1)
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while True:
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if toggle_switch.switched:
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led.on()
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else:
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led.off()
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utime.sleep_ms(200)
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import utime
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from machine import Pin
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class MTS102:
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"""MTS102（三脚二档钮子开关）"""
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def __init__(self, pin, pull_down=False):
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"""
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:param pin: 引脚编号
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:param pull_down: 引脚下拉电阻（断开为低电平，接通为高电平），默认为False。若使用下拉电阻，因钮子接通后断开可能存留电荷/漏电故需在引脚和GND并联1K～10K欧电阻
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"""
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if not isinstance(pull_down, bool):
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raise TypeError("pull_down数据类型应为布尔")
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self.pull_down = pull_down
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# 尝试初始化引脚
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try:
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self.pin = Pin(
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pin, Pin.IN, Pin.PULL_DOWN if self.pull_down else Pin.PULL_UP
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)
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except Exception as exception:
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raise RuntimeError(f"初始化引脚发生异常，{str(exception)}") from exception
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# 初始化上一次检测时间
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self._last_time = utime.ticks_ms()
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# 初始化上一次检测状态
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self._last_state = self._get_state()
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def _get_state(self):
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"""获取状态：0为断开，1为接通"""
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return self.pin.value() ^ (not self.pull_down)
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def _debounce(self):
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"""去抖"""
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current_time = utime.ticks_ms()
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current_state = self._get_state()
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# 若当前与上一次检测间隔大于等于防抖时间则更新时间，又若状态不同则更新状态
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if utime.ticks_diff(current_time, self._last_time) >= 20:
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if current_state != self._last_state:
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self._last_time = current_time
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self._last_state = current_state
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return self._last_state
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@property
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def switched(self):
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"""是否接通"""
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return self._debounce() == 1
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class WS2812:
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"""WS2812（可编程 RGB LED）"""
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def __init__(self, pin=16, led_beads=1):
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"""
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:param pin: 引脚编号，RP2350ZERO板载WS2812使用引脚16
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:param led_beads: LED灯珠数
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"""
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if not isinstance(led_beads, int):
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raise TypeError("led_beads数据类型应为整数")
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if not led_beads >= 1:
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raise ValueError("led_beads数值应大于等于1")
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self.led_beads = led_beads
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from neopixel import NeoPixel
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# 尝试初始化LED
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try:
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self.led = NeoPixel(Pin(pin, Pin.OUT), self.led_beads)
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except Exception as exception:
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raise RuntimeError(f"初始化LED发生异常，{str(exception)}") from exception
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def set_colors(self, colors):
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"""
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设置灯珠颜色
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:param colors: 包含每颗灯珠RGB的颜色列表
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"""
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if not isinstance(colors, list):
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raise TypeError("colors数据类型应为列表")
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if len(colors) != self.led_beads:
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raise ValueError("colors列表长度应与LED灯珠数一致")
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for bead_idx, bead_color in enumerate(colors):
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if not isinstance(bead_color, tuple):
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raise TypeError("灯珠颜色数据类型应为元组")
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if len(bead_color) != 3:
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raise ValueError("灯珠颜色长度应为3")
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for channel_idx, channel_value in enumerate(bead_color):
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if not isinstance(channel_value, int):
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raise TypeError("通道数据数据类型应为整数")
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if not 0 <= channel_value <= 255:
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raise ValueError("通道数据数值应在0～255范围内")
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for bead_idx, bead_color in enumerate(colors):
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# 将RGB转为GRB并设置灯珠颜色
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self.led[bead_idx] = (bead_color[1], bead_color[0], bead_color[2])
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# LED刷新
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self.led.write()
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def iridesce(self, hue_offset=20):
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"""通过HSV颜色空间生成渐变炫彩效果
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:param hue_offset: 色相偏移角度
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"""
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if not isinstance(hue_offset, int):
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raise TypeError("hue_offset数据类型应为整数")
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if not 0 <= hue_offset <= 60:
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raise ValueError("hue_offset数值应在0～60范围内")
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# 初始化HSV颜色空间参数，其中hue为色相，saturation为饱和度，value为亮度
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hue, saturation, value = 0, 255, 128
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while True:
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colors = []
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for bead_idx in range(self.led_beads):
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# 色相
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hue = (hue + bead_idx * hue_offset) % 360
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# 色域
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region = hue // 60
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# 色域内相对位置
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remainder = (hue - region * 60) * 255 // 60
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# 最小分量
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P = (value * (255 - saturation)) // 255
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# 过渡值
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transition = (value * remainder) // 255
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# 根据色域将HSV转为RGB并新增至颜色列表
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colors.append(
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{
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0: (value, transition, P), # 由红色渐变为黄色
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1: (value - transition, value, P), # 由黄色渐变为绿色
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2: (P, value, transition), # 由绿色渐变为青色
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3: (P, value - transition, value), # 由青色渐变为蓝色
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4: (transition, P, value), # 由蓝色渐变为洋红色
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5: (value, P, value - transition), # 由洋红色渐变为红色
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}[region]
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)
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self.set_colors(colors)
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# 根据色域动态调整色相步长
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hue = hue + [1, 1, 1, 1, 1, 1][region]
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utime.sleep_ms(100)
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class Servo:
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"""舵机（基类）"""
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# 运动轨迹
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_TRAJECTORIES = {
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"linear": lambda x: (x, 1), # 表示当前进度和速度
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}
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import utime
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class WS2812B:
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"""RP2350的WS2812B驱动"""
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def __init__(self, pin=16):
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"""
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初始化WS2812B驱动
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:param pin: WS2812B的DIN引脚编号（RP2350ZERO默认为16）
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"""
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import rp2
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from machine import Pin
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# 基于RP2350的可编程输入输出（PIO）生成输入数据信号
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@rp2.asm_pio(
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sideset_init=rp2.PIO.OUT_LOW, # 初始化侧置引脚为低电平
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out_shiftdir=rp2.PIO.SHIFT_LEFT, # 输出移位方向为左移（高位先出）
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autopull=True, # 自动从缓存区拉取数据
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pull_thresh=24, # 拉取数据阈值
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)
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def ws2812b():
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# 时序参数
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T1 = 3 # 比特0或比特1由低电平上升为高电平前的低电平周期数
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T2 = 2 # 比特0高电平周期数，或比特1前置高电平周期数
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T3 = 5 # 比特0由高电平下降为低电平后的低电平周期数，或比特1后置高电平周期数
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wrap_target()
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label("bit_loop")
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# 从输出移位寄存器（OSR）移出一个比特到X寄存器，同时将侧置引脚置为低电平，延迟T1-1周期数
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out(x, 1).side(0)[T1 - 1]
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# 判断X寄存器中为比特0，同时将侧置引脚置为高电平，延迟T2-1周期数。若为比特0则跳转至bit_0，否则跳转至bit_loop，同时将侧置引脚置为高电平，延迟T3-1周期数
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jmp(not_x, "bit_0").side(1)[T2 - 1]
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jmp("bit_loop").side(1)[T3 - 1]
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label("bit_0")
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# 无操作，同时将侧置引脚置为低电平，延迟T3-1周期数
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nop().side(0)[T3 - 1]
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wrap()
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try:
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# 初始化状态机
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self.state_mechine = rp2.StateMachine(
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0, ws2812b, freq=8_000_000, sideset_base=Pin(pin)
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)
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# 启动状态机
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self.state_mechine.active(1)
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except Exception as exception:
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raise
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def send(self, rgb):
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"""
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发送RGB颜色数据
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:param rgb: RGB颜色数据（元组）
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"""
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r, g, b = rgb
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# 组合RGB颜色数据
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rgb = (r << 24) | (g << 16) | (b << 8)
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self.state_mechine.put(rgb)
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def iridesce(self):
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"""炫彩"""
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# 色相
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H = 0
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# 饱和度
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S = 255
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# 亮度
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V = 16
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while True:
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H = H % 360
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# 色域
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region = H // 60
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# 色域相对位置
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remainder = (H - region * 60) * 256 // 60
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# 最小颜色分量值
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P = (V * (255 - S)) >> 8
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# 中间颜色分量值
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Q = (V * (255 - ((S * remainder) >> 8))) >> 8
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# 最大颜色分量值
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T = (V * (255 - ((S * (256 - remainder)) >> 8))) >> 8
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state_mechine.send(
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{
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0: (V, T, P),
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1: (Q, V, P),
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2: (P, V, T),
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3: (P, Q, V),
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4: (T, P, V),
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}.get(region, (V, P, Q))
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)
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utime.sleep_ms(20)
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H = H + 1
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134
发送摩斯码/main.py
134
发送摩斯码/main.py
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@ -1,134 +0,0 @@
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# -*- coding: utf-8 -*-
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from machine import Pin, PWM, Timer
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import utime
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class MorseCodeTransmitter:
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"""摩斯码发送器"""
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# 摩斯码本
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MORSECODEBOOK = {
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"A": ".-",
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"B": "-...",
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"C": "-.-.",
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"D": "-..",
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"E": ".",
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"F": "..-.",
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"G": "--.",
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"H": "....",
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"I": "..",
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"J": ".---",
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"K": "-.-",
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"L": ".-..",
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"M": "--",
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"N": "-.",
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"O": "---",
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"P": ".--.",
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"Q": "--.-",
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"R": ".-.",
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"S": "...",
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"T": "-",
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"U": "..-",
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"V": "...-",
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"W": ".--",
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"X": "-..-",
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"Y": "-.--",
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"Z": "--..",
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"0": "-----",
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"1": ".----",
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"2": "..---",
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"3": "...--",
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"4": "....-",
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"5": ".....",
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"6": "-....",
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"7": "--...",
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"8": "---..",
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"9": "----.",
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}
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# 合法字符集
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CHARACTERSALLOWED = set("ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789")
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def __init__(self):
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# 单位时距（单位为毫秒）
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self.unit_time_interval = 120
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# 初始化LED
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self.LED = Pin("LED", Pin.OUT, value=0)
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def emit(self, characters: str) -> bool:
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"""发送摩斯码"""
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"""
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:parma characters: 字符串，数据类型为字符
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"""
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# 检查字符串
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if not all(
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character.upper() in self.CHARACTERSALLOWED for character in characters
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):
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print("allowed: a-z, 0-9, space")
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return False
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# 转为大写
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characters = characters.upper()
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print(f"emitting {characters} ...", end="")
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for character in characters:
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# 单词间隔
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if character == " ":
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utime.sleep_ms(self.unit_time_interval * 7)
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continue
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for code in self.MORSECODEBOOK.get(character):
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# 点亮LED
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self.LED.value(1)
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if code == ".":
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utime.sleep_ms(self.unit_time_interval * 1)
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else:
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utime.sleep_ms(self.unit_time_interval * 3)
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# 熄灭LED
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self.LED.value(0)
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# 符号间隔
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utime.sleep_ms(self.unit_time_interval * 1)
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# 字母间隔
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utime.sleep_ms(self.unit_time_interval * 3)
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print("done")
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return True
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def __enter__(self):
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"""支持上下文管理"""
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return self
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def __exit__(self, exc_type, exc_val, exc_tb):
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"""退出"""
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self.LED.off()
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if __name__ == "__main__":
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with MorseCodeTransmitter() as transmitter:
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result = transmitter.emit(characters="hello world")
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