Adds test 3 mux

dev/test_3_mux_2024.py

+import time
+from ohmpi.utils import change_config
+from ohmpi.plots import plot_exec_log
+import logging
+change_config('../configs/config_mb_2023_3_mux_2024.py', verbose=False)
+from ohmpi.hardware_components.mux_2024_rev_0_0 import Mux, MUX_CONFIG
+from ohmpi.hardware_components import raspberry_pi_i2c as ctl_module
+from ohmpi.config import HARDWARE_CONFIG
+
+stand_alone_mux = True
+part_of_hardware_system = False
+within_ohmpi = False
+# Stand alone mux
+if stand_alone_mux:
+    mux_id = 'mux_04'
+    first = 24
+    print(MUX_CONFIG)
+    MUX_CONFIG.update(HARDWARE_CONFIG['mux']['boards'][mux_id])
+    MUX_CONFIG.update({'id': mux_id})
+    MUX_CONFIG['ctl'] = ctl_module.Ctl()
+    mux = Mux(**MUX_CONFIG)
+    mux.switch_one(elec=1+first, role='M', state='on')
+    time.sleep(1)
+    mux.switch_one(elec=1+first, role='M', state='off')
+    mux.switch({'A': [1], 'B': [2], 'M': [3], 'N': [4]}, state='on')
+    time.sleep(2)
+    # mux.switch({'A': [1], 'B': [4], 'M': [2], 'N': [3]}, state='off')
+    mux.reset()
+    mux.test({'A': [i+first for i in range(1, 9)], 'B': [i+first for i in range(1, 9)],
+              'M': [i+first for i in range(1, 9)], 'N': [i+first for i in range(1, 9)]}, activation_time=.1)
+
+# mux as part of a OhmPiHardware system
+if part_of_hardware_system:
+    from ohmpi.hardware_system import OhmPiHardware
+    print('Starting test of mux as part of a OhmPiHardware system.')
+
+    k = OhmPiHardware()
+    k.exec_logger.setLevel(logging.DEBUG)
+
+    # Test mux switching
+    k.reset_mux()
+    k.switch_mux(electrodes=[1, 4, 2, 3], roles=['A', 'B', 'M', 'N'], state='on')
+    time.sleep(1.)
+    k.switch_mux(electrodes=[1, 4, 2, 3], roles=['A', 'B', 'M', 'N'], state='off')
+
+if within_ohmpi:
+    from ohmpi.ohmpi import OhmPi
+    print('Starting test of mux within OhmPi.')
+    k = OhmPi()
+    k.reset_mux()
+    k._hw.switch_mux([10, 13, 12, 11], state='on')
+    k._hw.vab_square_wave(12.,12., cycles=2)
+    k._hw.switch_mux([10, 13, 12, 11], state='off')
+    k._hw.calibrate_rx_bias()  # electrodes 1 4 2 3 should be connected to a reference circuit
+    # print(f'Resistance: {k._hw.last_rho :.2f} ohm, dev. {k._hw.last_dev:.2f} %, rx bias: {k._hw.rx._bias:.2f} mV')
+    # k._hw._plot_readings()
+    k._hw.switch_mux([10, 13, 12, 11], state='on')
+    k._hw.vab_square_wave(vab=12., cycle_duration=12., cycles=2)
+    k._hw.switch_mux([10, 13, 12, 11], state='off')
+    print(f'Resistance: {k._hw.last_rho :.2f} ohm, dev. {k._hw.last_dev:.2f} %, rx bias: {k._hw.rx._bias:.2f} mV')
+    k._hw._plot_readings()
+    plot_exec_log('ohmpi/logs/exec.log')
+change_config('../configs/config_default.py', verbose=False)