# Create chandle and status ready for use
chandle = ctypes.c_int16()
status = {}
# Open 4000 series PicoScope
# Returns handle to chandle for use in future API functions
status["openunit"] = ps.ps4000aOpenUnit(ctypes.byref(chandle), None)
try:
assert_pico_ok(status["openunit"])
except:
powerStatus = status["openunit"]
if powerStatus == 286:
status["changePowerSource"] = ps.ps4000aChangePowerSource(
chandle, powerStatus)
else:
raise
assert_pico_ok(status["changePowerSource"])
# Set up channel A
# handle = chandle
# channel = PS4000a_CHANNEL_A = 0
# enabled = 1
# coupling type = PS4000a_DC = 1
# range = PS4000a_2V = 7
# analogOffset = 0 V
chARange = 7
status["setChA"] = ps.ps4000aSetChannel(chandle, 0, 1, 1, chARange, 0)
assert_pico_ok(status["setChA"])
status = {}
chandle = ctypes.c_int16()
# Opens the device/s
status["openunit"] = ps.ps4000aOpenUnit(ctypes.byref(chandle), None)
try:
assert_pico_ok(status["openunit"])
except:
# powerstate becomes the status number of openunit
powerstate = status["openunit"]
# If powerstate is the same as 282 then it will run this if statement
if powerstate == 282:
# Changes the power input to "PICO_POWER_SUPPLY_NOT_CONNECTED"
status["ChangePowerSource"] = ps.ps4000aChangePowerSource(chandle, 282)
# If the powerstate is the same as 286 then it will run this if statement
elif powerstate == 286:
# Changes the power input to "PICO_USB3_0_DEVICE_NON_USB3_0_PORT"
status["ChangePowerSource"] = ps.ps4000aChangePowerSource(chandle, 286)
else:
raise
assert_pico_ok(status["ChangePowerSource"])
# Output a sine wave with peak-to-peak voltage of 2 V and frequency of 10 kHz
# handle = chandle
# offsetVoltage = 0
# pkToPk = 2000000
# waveType = ctypes.c_int16(0) = PS4000A_SINE
# startFrequency = 10 kHz