Answer: Binary Secret #308

The secret message is:

CATS NAP

Row by row

Row	Bulbs	Add the ‘on’ numbers	Character
1	01000011	64 + 2 + 1 = 67	C
2	01000001	64 + 1 = 65	A
3	01010100	64 + 16 + 4 = 84	T
4	01010011	64 + 16 + 2 + 1 = 83	S
5	00100000	32 = 32	a space
6	01001110	64 + 8 + 4 + 2 = 78	N
7	01000001	64 + 1 = 65	A
8	01010000	64 + 16 = 80	P

Crack it with Python

Python can do the adding for you. int(code, 2) reads a string of 1s and 0s as a binary number. Then chr() turns the number into its character.

secret = [
    "01000011",
    "01000001",
    "01010100",
    "01010011",
    "00100000",
    "01001110",
    "01000001",
    "01010000",
]
message = ""
for code in secret:
    number = int(code, 2)
    message = message + chr(number)
print(message)

When you run it, it prints:

CATS NAP