# Project#4 - Let's talk DIP Switches and functions
# Connections:  Add jumpers to the LED headers (Labelled G16BLU and G17RED) to the left of the coin battery.
# Also add jumpers to the GP15 S1 header and GP14 S@ headers to the right of the coin battery socket.
# The DIP swtiche channels are tied to GPIOs 18-thrrough 21
import machine   # Think of "import" as importing a library.  This library allows for us to use GPIOs
import utime     # This "library" allows for us to tell time if connected to the internet, and use delays like 'utime.sleep(1)'
Button = machine.Pin(15, machine.Pin.IN)  #Setup the SEL1 button pin to GPIO 15.  Set it as an input and name it "Button"
Button2 = machine.Pin(14, machine.Pin.IN)  #Setup the SEL2 button pin to GPIO 14.  Set it as an input and name it "Button2"
#  
DIPA = machine.Pin(21, machine.Pin.IN)  #Setup DIP Switch Channel-A as an output
DIPB = machine.Pin(20, machine.Pin.IN)  #Setup DIP Switch Channel-B as an output
DIPC = machine.Pin(19, machine.Pin.IN)  #Setup DIP Switch Channel-C as an output
DIPD = machine.Pin(18, machine.Pin.IN)  #Setup DIP Switch Channel-D as an output
#
LEDRED = machine.Pin(16, machine.Pin.OUT)   # Set up GPIO16 as an output, and name it LEDRED
LEDBLU = machine.Pin(17, machine.Pin.OUT)   # Do the same for GPIO17
LEDRED.value(0)   # Turn the red LED off.  If you set it to (1), then you'd be turning it on
LEDBLU.value(0)   # Turn the blue LED off.  If you set it to (1), then you'd be turning it on

def DIPStates():  # Sweet! Our first (Very simple) function.  We can call this at any time by typing "DIPstates()
    # If prints the dstates of each of the four DIP switch channels to the shell.  The main code is below
    print("DIP Switch Status Check:")  # Print this to the shell
    if DIPA.value() == True:           # Check to see if DIP channel A is high/true.  
        print("DIP Channel-A is OFF...") # If so, print this to the shell
    else:                              # Otherwise, print the following to the shell
        print("DIP Channel-A is ON...")# This piece of code is coped and pasted for each of the four DIP switches
    if DIPB.value() == True:           # 
        print("DIP Channel-B is OFF...")
    else:
        print("DIP Channel-B is ON...")
    if DIPC.value() == True:
        print("DIP Channel-C is OFF...")
    else:
        print("DIP Channel-C is ON...")
    if DIPD.value() == True:
        print("DIP Channel-D is OFF...")
    else:
        print("DIP Channel-D is ON...")

# This is the main code
while True:            # Loop forever.  We've exchanged our FOR/range with a While loop.  Because the condition is set, the following code will loop forever.
    if Button.value() == 0:  # If during this forever loop we press the SW1 button, then the dipstates function will be called
        DIPStates()          # Call the DIPstates function
        print("Wait one second") # Print this to the shell
        utime.sleep(1)           # Wait one second
        
        
# In this piece of code, we call a function, use the "print" function for the rist time, and read the DIP switch states.
# As you can see, a lot of this basic codeing is very similar to Arduino coding.