Heating and Ventilation Control

/HvcSendI2C

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"""
PWM to control Ebmpapst ventilators in Paul Thermos 200
Dr. Arne Jachens
2020-06-20
"""

#import  smbus
from smbus2 import  SMBus

class HvcSendI2C:
    def  __init__(self):
        self.bus = SMBus(1)              # 0 = /dev/i2c-0 , 1 = /dev/i2c-1
        self.ADDRESS  = 96 #0x60         # address on bus, check: i2cdetect -y 1
        self.REG_MODE = 17 #0x11         # auto increment flag, output logics with pull up resistors


    
    def  setPWM(self,level):
        """
        Set the ventilation level [0:1], where 1 is maximal,
        here both ventilation levels are set equal.
        """

        #level percent to integer
        levelInt = []
        for  i,lev in enumerate(level):
            levelInt.append(int( 255*(1.0-lev) ))

        #compose message bytes
        values=[]
        values.append( 00 )     # frequency of PWM0
        values.append(levelInt[0]) # PWM0
        values.append( 00 )     # frequency of PWM1
        values.append(levelInt[1]) # PWM1
        values.append( 14 )     # xxxx1110 set output0 to PWM0 and output1 to PWM1

        #send message
        self.bus.write_i2c_block_data(self.ADDRESS, self.REG_MODE, values)


"""
for  testing
"""
if __name__ == "__main__":
    I2C = HvcSendI2C()
    level = [0.5, 0.5]
    I2C.setPWM(level)

python

1	/HvcLightControl.py
2	/HvcHCSR04ultrasonic.py
3	/HvcPV.py
4	/HvcMotorDriver.py
5	/HvcRollerShutter.py
6	/manGenMqttMap.py
7	/HvcReadSPI.py
8	/HvcMqtt.py
9	/HvcTables.py
10	/HvcMain.py
11	/HvcSetGPIO.py
12	/HvcWifiRelay.py
13	/HvcOperationMode.py
14	/HvcControl.py
15	/HvcRaw2phys.py
16	/HvcWeather.py
17	/HvcOneWire.py
18	/makeDoc.py
19	/HvcFronius.py
20	/EnergyManager.py
21	/HvcSendI2C.py

php

1	/HV_colorMap.php
2	/HV_Admin_Login.php
3	/HV_readOperationState.php
4	/HV_setParameters.php
5	/HV_config.php
6	/EM_handleJSON.php
7	/index.php
8	/readFilenames.php
9	/HV_restart.php
10	/HV_moveGate.php
11	/HV_showLog.php
12	/HV_RollerShutter.php
13	/EM_editParameter.php
14	/HV_serviceLog.php
15	/HV_H2Olevel.php
16	/HV_TempCal.php
17	/HV_Fronius.php
18	/EM_plot.php
19	/readNamedData.php
20	/HV_composeH2Oplot.php
21	/HVdoc.php
22	/HV_showWeatherForecast.php
23	/HV_showHouse.php

Der gesamte Sourcecode darf gemäß GNU General Public License weiterverbreitet werden.