任意叶

用于 Python 中的 AnyLeaf pH 和 RTD 传感器

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快速开始

要尽快开始使用 Raspberry Pi：

• 激活 I2C（pH 和 ORP 模块）：运行sudo raspi-config。选择Interfacing Options→→→ 。I2C_Yes
• 激活 SPI（RTD 临时模块）：同上，但选择SPI而不是I2C.
• 重启

然后从终端运行这些命令：

• sudo apt install python3-scipy
• pip3 install anyleaf
• git clone https://github.com/anyleaf/anyleaf-python.git
• cd anyleaf-python/examples
• python3 ph_orp.py

pH 读数将显示在您的终端中。

要安装anyleafPython 包，请运行pip3 install anyleaf或 pip install anyleaf，具体取决于pip您的操作系统上的设置方式。

使用示例，用于 Raspberry Pi 和 CircuitPython 板：

import time

import board
import busio
from anyleaf import PhSensor, CalPt, CalSlot, OnBoard, OffBoard


def main():
    i2c = busio.I2C(board.SCL, board.SDA)
    delay = 1  # Time between measurements, in seconds
    ph_sensor = PhSensor(i2c, delay)

    # 2 or 3 pt calibration both give acceptable results.
    # Calibrate with known values. (voltage, pH, temp in °C).
    # You can find voltage and temperature with `ph_sensor.read_voltage()` and 
    # `ph_sensor.read_temp()` respectively.
    # For 3 pt calibration, pass a third argument to `calibrate_all`.
    ph_sensor.calibrate_all(
        CalPt(0., 7., 25.), CalPt(0.17, 4., 25.)
    )

    # Or, call these with the sensor in the appropriate buffer solution.
    # This will automatically use voltage and temperature.
    # Voltage and Temp are returned, but calibration occurs
    # without using the return values.
    # V, T = ph_sensor.calibrate(CalSlot.ONE, 7., Offboard(40.))
    # ph_sensor.calibrate(CalSlot.TWO, 4., OnBoard())

    # Store the calibration parameters somewhere, so they persist
    # between program runs.

    while True:
        pH = ph_sensor.read(OnBoard())
        # To use an offboard temperature measurement: `ph_sensor.read(OffBoard(30.))`
        print(f"pH: {pH}")

        time.sleep(delay)


if __name__ == "__main__":
    main()