I am unable to remember which colour bin to put on and to put the bin out in the first place... So the Pi does it for me.

bindicator.py

# A raspberry pi has a green and a blue LED connected to D23 and D24

# ============== imports =========================================
from apscheduler.schedulers.background import BackgroundScheduler
from functools import partial
from datetime import datetime
import digitalio
import board
import time

# ============== functions ========================================
def binmaster(pin, weekday=3): # my bins go out on Thursday night
    with digitalio.DigitalInOut(pin) as led: 
        while datetime.now().weekday() == weekday:
            led.direction = digitalio.Direction.OUTPUT
            led.value = True
            time.sleep(0.5)
            led.value = False
            time.sleep(0.5)

bluebinmaster = partial(binmaster, pin=board.D24)
greenbinmaster = partial(binmaster, pin=board.D23)
                    
# ============== run =========================================
# The job will be executed on November 6th, 2009
scheduler.add_job(greenbinmaster, 'interval', weeks=2, start_date='2020-11-12 16:00:00')
scheduler.add_job(bluebinmaster, 'interval', weeks=2, start_date='2020-11-19 16:00:00')
scheduler.start()