create initial example setup

Author: neil.hamilton

pt104Examples/pt104Example.py

@@ -0,0 +1,49 @@
+#
+# Copyright (C) 2022 Pico Technology Ltd. See LICENSE file for terms.
+#
+# PT104 Example
+# This example opens a pt104, sets up a single channel and collects data before closing the pt104
+
+import ctypes
+from picosdk.usbPT104 import usbPt104 as pt104
+import numpy as np
+from picosdk.functions import assert_pico_ok
+from time import sleep
+
+# Create chandle and status ready for use
+status = {}
+chandle = ctypes.c_int16()
+
+# Open the device
+status["openUnit"] = pt104.UsbPt104OpenUnit(ctypes.byref(chandle),0)
+assert_pico_ok(status["openUnit"])
+
+# Set mains noise filtering
+sixty_hertz = 0 #50 Hz
+status["setMains"] = pt104.UsbPt104SetMains(chandle, sixty_hertz)
+assert_pico_ok(status["setMains"])
+
+# Setup channel 1
+channel = pt104.PT104_CHANNELS["USBPT104_CHANNEL_1"] #channel 1
+datatype = pt104.PT104_DATA_TYPE["USBPT104_PT100"] #pt100
+noOfWires = 4 #wires
+
+status["setChannel1"] = pt104.UsbPt104SetChannel(chandle, channel, datatype, noOfWires)
+assert_pico_ok(status["setChannel1"])
+
+print(status)
+
+#pause
+sleep(2)
+
+# Get values
+value = ctypes.c_int32()
+filtered = 1 # true
+status["getValue"] = pt104.UsbPt104GetValue(chandle, channel, ctypes.byref(value), filtered)
+assert_pico_ok(status["getValue"])
+
+# Close the device
+status["closeUnit"] = pt104.UsbPt104CloseUnit(chandle)
+assert_pico_ok(status["closeUnit"])
+
+print(status)