Works + flashes, not tested with build.

brain_gong.py

@@ -0,0 +1,95 @@
+# ------------__ Hacking STEM – brain_gong.py – micro:bit __-----------
+# For use with the Lesson plan available
+# from Microsoft Education Workshop at http://aka.ms/hackingSTEM
+#
+#  Overview:
+#
+#  This project uses a BBC micro:bit microcontroller, information at:
+#  https://microbit.org/
+#
+#  Comments, contributions, suggestions, bug reports, and feature
+#  requests are welcome! For source code and bug reports see:
+#  http://github.com/[TODO github path to Hacking STEM]
+#
+#  Copyright 2018, Adi Azulay
+#  Microsoft EDU Workshop - HackingSTEM
+#  MIT License terms detailed in LICENSE.txt
+# ===---------------------------------------------------------------===
+
+from microbit import *
+
+# Setup & Config
+display.off()  # Turns off LEDs to free up additional input pins
+uart.init(baudrate=9600)  # Sets serial baud rate
+DATA_RATE = 10 # Frequency of code looping
+EOL = '\n' # End of Line Character
+
+# These constants are the pins we use on the micro:bit for each one of our 
+# sensors
+BRAIN_SENSOR_PIN1 = pin0
+BRAIN_SENSOR_PIN2 = pin1
+BRAIN_SENSOR_PIN3 = pin2
+BRAIN_SENSOR_PIN4 = pin3
+BRAIN_SENSOR_PIN5 = pin4
+
+# Each sensor has some level of variablity in the readings it outputs. This 
+# function shifts the base line up or down so the starting value is close to 0
+def tare(pin):
+    tare_value = pin.read_analog()
+    return tare_value
+
+brain_sensor_1_tare = tare(BRAIN_SENSOR_PIN1)
+brain_sensor_2_tare = tare(BRAIN_SENSOR_PIN2)
+brain_sensor_3_tare = tare(BRAIN_SENSOR_PIN3)
+brain_sensor_4_tare = tare(BRAIN_SENSOR_PIN4)
+brain_sensor_5_tare = tare(BRAIN_SENSOR_PIN5)
+
+# This function reads voltage of from each pin attached to a pressure sensor 
+# and then subtracts the tare value we calculated for it earlier.
+def process_sensors():
+    global brain_sensor_1, brain_sensor_2, brain_sensor_3, brain_sensor_4, 
+    brain_sensor_5
+    brain_sensor_1 = BRAIN_SENSOR_PIN1.read_analog() - brain_sensor_1_tare
+    brain_sensor_2 = BRAIN_SENSOR_PIN2.read_analog() - brain_sensor_2_tare
+    brain_sensor_3 = BRAIN_SENSOR_PIN3.read_analog() - brain_sensor_3_tare
+    brain_sensor_4 = BRAIN_SENSOR_PIN4.read_analog() - brain_sensor_4_tare
+    brain_sensor_5 = BRAIN_SENSOR_PIN5.read_analog() - brain_sensor_5_tare
+
+
+#=============================================================================#
+#---------------The Code Below Here is for Excel Communication----------------#
+#=============================================================================#
+
+parsedData = [0] * 5
+
+ #   This function gets data from serial and builds it into a string
+def getData():
+       global parsedData, builtString
+    builtString = ""
+    while uart.any() is True:
+        byteIn = uart.read(1)
+        if byteIn == b'\n':
+            continue
+        byteIn = str(byteIn)
+        splitByte = byteIn.split("'")
+        builtString += splitByte[1]
+    parseData(builtString)
+    return (parsedData)
+
+#   This function seperates the string into an array
+def parseData(s):
+    global parsedData
+    if s != "":
+        parsedData = s.split(",")
+
+#=============================================================================#
+#------------------------------Main Program Loop------------------------------#
+#=============================================================================#
+while (True):
+    process_sensors()
+    serial_in_data = getData()
+    if (serial_in_data[0] != "#pause"):
+        uart.write('{},{},{},{},{}'.format(brain_sensor_1, brain_sensor_2, 
+        brain_sensor_3, brain_sensor_4, brain_sensor_5)+EOL)
+
+    sleep(DATA_RATE)