Micropython ESP32 Lesson 2.4

General
1

Just a little additional exercise I challenged myself with to reinforce the method used to shift registers.

The original lesson counted from LSB to MSB like this:

for i in range(16):
    if i < 8:
        num = (num << 1) + 1  # Shift left and set the least significant bit to 1
    elif i >= 8:
        num = (num & 0b01111111) << 1  # Mask the most significant bit and shift left
    hc595_shift(num)
    print("{:0>8b}".format(num))
    time.sleep_ms(200)

With only minor changes, this is how I counted from MSB to LSB:

for i in range(16):
    if i < 8:
        num = (num >> 1) + 128  # Shift RIGHT and set MSB to 1
    elif i >= 8:
        num = (num & 0b11111110) >> 1  # Mask LSB and shift RIGHT
    hc595_shift(num)
    print(f"Lights outputting are {num:08b}")  # F string to print 8-bit binary for num
    time.sleep_ms(200)

Feel free to reply with code mods you attempted.