def turn_off():
answer = True
write_voltage(0)
write_current(0)
while answer is True:
supplier.send(c, "turn_off", 1)
time.sleep(timeout_min)
answer = supplier.send(c, "read_status")
def test_wave():
def triangular_wave():
v_min = 5
v_max = 10
v_delta = 0.5
cycles = 3
seconds_per_cycle = 1
steps = int((v_max - v_min) // v_delta)
timeout_step = seconds_per_cycle / (steps * 2)
voltage = v_min
for cycle in range(cycles):
for updown in [1, -1]:
for step in range(steps):
voltage = voltage + updown * v_delta
answer = supplier.send(c, "voltage", voltage)
time.sleep(max(timeout_min, timeout_step))
def square_wave():
v_min = 5
v_max = 10
v_delta = v_max - v_min
cycles = 3
seconds_per_cycle = 1
steps = int((v_max - v_min) // v_delta)
timeout_step = seconds_per_cycle / (steps)
voltage = v_min
for cycle in range(cycles):
for updown in [1, -1]:
for step in range(steps):
voltage = voltage + updown * v_delta
answer = supplier.send(c, "voltage", voltage)
time.sleep(max(timeout_min, timeout_step))
# open or reconnect TCP to server
if not c.is_open():
if not c.open():
print("unable to connect to " + SERVER_HOST + ":" +
str(SERVER_PORT))
if c.is_open():
# read
command_name = "read_config"
answer = supplier.send(c, command_name)
command_name = "read_voltage"
answer = supplier.send(c, command_name)
command_name = "read_current"
answer = supplier.send(c, command_name)
# write
turn_on()
triangular_wave()
square_wave()
turn_off()
exit()
def write_current(value: float):
max_tries = 10
accepted_error = 0.01
corrected_value = value
for tries in range(max_tries):
supplier.send(c, "current", corrected_value)
time.sleep(max(timeout_min, timeout_step))
current_config = read_current_config()
if abs(current_config - corrected_value) < accepted_error:
break
return current_config
def write_voltage(value: float):
max_tries = 10
accepted_error = 0.5
gain = 1.13868
corrected_value = value * gain
for tries in range(max_tries):
supplier.send(c, "voltage", corrected_value)
time.sleep(max(timeout_min, timeout_step))
voltage_config = read_voltage_config()
if abs(voltage_config - corrected_value) < accepted_error:
break
return voltage_config
def square_wave():
v_min = 5
v_max = 10
v_delta = v_max - v_min
cycles = 3
seconds_per_cycle = 1
steps = int((v_max - v_min) // v_delta)
timeout_step = seconds_per_cycle / (steps)
voltage = v_min
for cycle in range(cycles):
for updown in [1, -1]:
for step in range(steps):
voltage = voltage + updown * v_delta
answer = supplier.send(c, "voltage", voltage)
time.sleep(max(timeout_min, timeout_step))
def read_current() -> float:
return supplier.send(c, "read_current")
def read_voltage() -> float:
return supplier.send(c, "read_voltage")
def read_current_config() -> float:
return supplier.send(c, "read_config")[1]
def read_voltage_config() -> float:
return supplier.send(c, "read_config")[0]
