Adds pwr_dps5005 in hardware component (yet to be tested)

ohmpi/hardware_components/pwr_dps5005.py

+from ohmpi.hardware_components.abstract_hardware_components import PwrAbstract
+from ohmpi.config import HARDWARE_CONFIG
+import importlib
+import numpy as np
+import os
+
+ctl_name = HARDWARE_CONFIG['ctl'].pop('board_name', 'raspberry_pi_modbus')
+ctl_module = importlib.import_module(f'ohmpi.hardware_components.{ctl_name}')
+
+class Pwr(PwrAbstract):
+    def __init__(self, **kwargs):
+        kwargs.update({'board_name': os.path.basename(__file__).rstrip('.py')})
+        voltage = kwargs.pop('voltage', 12.)
+        super().__init__(**kwargs)
+        if self.ctl is None:
+            self.ctl = ctl_module.Ctl()
+        self.ctl.bus.configure_modbus()
+        self.voltage_adjustable = True
+        self._voltage = voltage
+        self._current_adjustable = False
+        self._current = np.nan
+        self._current_max = kwargs.pop('current_max', 100.)
+
+    @property
+    def current(self):
+        return self._current
+
+    @current.setter
+    def current(self, value, **kwargs):
+        self.exec_logger.debug(f'Current cannot be set on {self.board_name}')
+
+    def turn_off(self):
+        self.ctl.bus.write_register(0x09, 1)
+        self.exec_logger.debug(f'{self.board_name} is off')
+
+    def turn_on(self):
+        self.ctl.bus.write_register(0x09, 1)
+        self.exec_logger.debug(f'{self.board_name} is on')
+
+    @property
+    def voltage(self):
+        return PwrAbstract.voltage.fget(self)
+
+    @voltage.setter
+    def voltage(self, value):
+        self.ctl.bus.write_register(0x0000, value, 2)
+    
+    def battery_voltage(self):
+        self.ctl.bus.read_register(0x05, 2)
+
+    @property
+    def current_max(self,value):
+        self.ctl.bus.write_register(0x0001, value * 10, 0)

ohmpi/hardware_components/raspberry_pi_modbus.py

+from ohmpi.hardware_components import CtlAbstract
+import board  # noqa
+import busio  # noqa
+import os
+from ohmpi.utils import get_platform
+from gpiozero import CPUTemperature  # noqa
+import minimalmodbus  # noqa
+
+
+class Ctl(CtlAbstract):
+    def __init__(self, **kwargs):
+        kwargs.update({'board_name': os.path.basename(__file__).rstrip('.py')})
+        super().__init__(**kwargs)
+        self.bus = minimalmodbus.Instrument(port='/dev/ttyUSB0', slaveaddress=1)  # port name, address (decimal)
+        self.configure_modbus() # TODO: check if this works on init
+        platform, on_pi = get_platform()
+        assert on_pi
+        self.board_name = platform
+        self._cpu_temp_available = True
+        self.max_cpu_temp = 85.  # °C
+
+    @property
+    def _cpu_temp(self):
+        return CPUTemperature().temperature
+
+    def configure_modbus(self, baudrate=9600, bitesize=8, timeout=1, debug=False, parity='N',
+                         mode=minimalmodbus.MODE_RTU):
+        self.bus.serial.baudrate = baudrate  # Baud rate 9600 as listed in doc
+        self.bus.serial.bytesize = bitesize  #
+        self.bus.serial.timeout = timeout  # greater than 0.5 for it to work
+        self.bus.debug = debug  #
+        self.bus.serial.parity = parity  # No parity
+        self.bus.mode = mode # RTU mode
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