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Grand Francois authoredrefs #615
f70b4d5b
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from OhmPi.config import HARDWARE_CONFIG
import os
import json
from OhmPi.hardware_components import MuxAbstract
import adafruit_tca9548a # noqa
from adafruit_mcp230xx.mcp23017 import MCP23017 # noqa
from digitalio import Direction # noqa
MUX_CONFIG = HARDWARE_CONFIG['mux']
class Mux(MuxAbstract):
def __init__(self, **kwargs):
kwargs.update({'board_name': os.path.basename(__file__).rstrip('.py')})
super().__init__(**kwargs)
self.exec_logger.debug(f'configuration: {MUX_CONFIG}')
self.max_elec = MUX_CONFIG['max_elec']
if self.addresses is None and 'addresses' in MUX_CONFIG.keys():
self._get_addresses(MUX_CONFIG['addresses'])
self.exec_logger.debug(f'Using {MUX_CONFIG["addresses"]} for {self.board_name}...')
self.exec_logger.debug(f'addresses: {self.addresses}')
def _get_addresses(self, addresses_file):
with open(addresses_file, 'r') as f:
x = json.load(f)
self.addresses = {}
for k in x.keys():
y = k.strip('(').strip(')').split(', ')
self.addresses.update({(int(y[0]), y[1]): x[k]})
def reset(self):
pass
def switch_one(self, elec=None, role=None, state=None):
MuxAbstract.switch_one(self, elec=elec, role=role, state=state)
def set_relay_state(mcp, mcp_pin, state=True):
pin_enable = mcp.get_pin(mcp_pin)
pin_enable.direction = Direction.OUTPUT
pin_enable.value = state
d = self.addresses[elec, role]
if d['TCA_address'] is None:
tca = self.controller.bus
else:
tca = adafruit_tca9548a.TCA9548A(self.controller.bus, d['TCA_address'])[d['TCA_channel']]
mcp = MCP23017(tca, address=d['MCP_address'])
if state == 'on':
print('opening gpio nr', d['MCP_GPIO'])
print('opening electrode nr', elec)
print('opening role', role)
print('opening MCP', d['MCP_address'])
set_relay_state(mcp, d['MCP_GPIO'], True)
if state == 'off':
set_relay_state(mcp, d['MCP_GPIO'], False)
def test(self, *args):
MuxAbstract.test(self, *args)