# Basic_DIP.py 
# The value being set by dip switches
#
# Joshua Mo-Yung, March 22,2024
# SN: 100830422

from machine import Pin
import time

# GP's to be used as In (0=lsb)pins = [machine.Pin(i, machine.Pin.IN for i in (0, 1, 2, 3)]
pins = [machine.Pin(i, machine.Pin.IN) for i in (0, 1, 2, 3)]
# GP's to be used, with Pull_down
pins = [machine.Pin(i, machine.Pin.IN, machine.Pin.PULL_DOWN) for i in (0, 1, 2, 3)]

binV = 0 # calculate and updates the weight of the binary input value
back = 0 # Temporary holder for binary input value

def update(binV):
    '''get the Sp offset value (binary weights [0..15]) - passed 0, at every call,
    in case of a change'''
    
    if pins[0].value() == 1:
        binV = binV + 1
    if pins[1].value() == 1:
        binV = binV + 2
    if pins[2].value() == 1:
        binV = binV + 4
    if pins[3].value() == 1:
       binV = binV + 8
    return binV

while True:
    back = 0
    back = update(back)

    print("Binary weight value = " + str(back))
    
    time.sleep_ms(1000) # cause the TC to update at 1 second intervals