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Unit AC Measure
案例程序
测量电流与电压
from m5stack import *
from m5ui import *
from uiflow import *
import time
import unit
setScreenColor(0x000000)
ac_measure_0 = unit.get(unit.AC_MEASURE, unit.PORTA)
isdata = None
ac_measure_0.init_i2c_address(0x42)
print((str('FW VER:') + str((ac_measure_0.get_device_status(0xFE)))))
while True:
isdata = ac_measure_0.get_data_ready()
if isdata:
print((str('VOLTAGE:') + str((ac_measure_0.get_voltage_str()))))
print((str('CURRENT:') + str((ac_measure_0.get_current_str()))))
print((str('POWER:') + str((ac_measure_0.get_active_power_str()))))
print((str('KW/H') + str((ac_measure_0.get_kwh_str()))))
wait(1)
wait_ms(2)
功能说明
ac_measure_0.init_i2c_address(0x42)- 通过设置 I2C 端口和 地址来初始化 AC Measure 单元
print((str('ready:') + str((ac_measure_0.get_data_ready()))))- 数据就绪状态检查
print((str('active power:') + str((ac_measure_0.get_active_power_str())))) - 获取有功功率
print((str('active power raw:') + str((ac_measure_0.get_active_power_byte()))))- 获取原始有功功率数据
print((str('apparent power:') + str((ac_measure_0.get_apparent_power_str()))))- 获取视在功率
print((str('apparent power raw:') + str((ac_measure_0.get_apparent_power_byte()))))- 获取原始视在功率数据
print((str('current:') + str((ac_measure_0.get_current_str()))))- 获取电流值
print((str('current coefficient:') + str((ac_measure_0.get_current_coeff()))))- 获取电流校准系数
print((str('current raw:') + str((ac_measure_0.get_current_byte()))))- 获取原始电流数据
print((str('firmware:') + str((ac_measure_0.get_device_status(0xFE)))))- 获取固件版本
print((str('kw:') + str((ac_measure_0.get_kwh_str()))))- 获取累计电能（千瓦时）
print((str('kw raw:') + str((ac_measure_0.get_kwh_byte()))))- 获取原始电能数据（千瓦时）
print((str('power factor:') + str((ac_measure_0.get_power_factor_str()))))- 获取功率因数
print((str('power factor raw:') + str((ac_measure_0.get_power_factor_byte()))))- 获取原始功率因数数据
print((str('voltage:') + str((ac_measure_0.get_voltage_str()))))- 获取电压值（伏特）
print((str('voltage coefficient:') + str((ac_measure_0.get_voltage_coeff()))))- 获取电压校准系数
print((str('voltage raw:') + str((ac_measure_0.get_voltage_byte()))))- 获取原始电压数据
ac_measure_0.set_current_coeff(100)- 设置电流校准系数
ac_measure_0.set_i2c_address(0x42)- 设置I2C通信地址
ac_measure_0.set_save_coeff()- 保存校准系数到非易失性存储器
ac_measure_0.set_voltage_coeff(100)- 设置电压校准系数