Simple loop with one power supply

We show how we switch on an off lights powered by a power supply. The driver for the device is defined in fluidlab.instruments.powersupply.isotech_ips2303s.

from time import time

from fluidlab.instruments.powersupply.isotech_ips2303s import IsoTechIPS2303S
from fluidlab.exp import Timer

voltage_max = 8

pwrsupply = IsoTechIPS2303S()

print("Initialize the device " + pwrsupply.query_identification())
pwrsupply.set_output_state(False)
pwrsupply.iset1.set(0.3)
pwrsupply.iset2.set(0.3)
pwrsupply.vset1.set(0.0)
pwrsupply.vset2.set(voltage_max)
pwrsupply.set_output_state(True)


def switch(channel):
    volt = channel.get()
    if volt > 0:
        volt = 0
    else:
        volt = voltage_max
    channel.set(volt)


time_step = 2.0
total_time = 20.0

print(f"Loop during total_time = {total_time:7.5} s")
t = 0.0
timer = Timer(time_step)
tstart = timer.tstart
while t < total_time:
    print(f"time till start: {t:7.5} s")

    switch(pwrsupply.vset1)
    switch(pwrsupply.vset2)

    t = timer.wait_tick()

print("time at the end: {:7.5} s".format(time() - tstart))
pwrsupply.set_output_state(False)