Python loop for posting data to web

[deanhystad]

I think you want to move this outside the loop.

ch = thingspeak.Channel(channel_id, api_key)

I wouldn't be surprised if disposing of a channel object is messing up your connection.

I also think you should remove this from the loop and have it only happen when the loop is done.

leds.off()

You should also put the keyboard interrupt exception handler back in.

I don't know what you want to do with the LED's, so I turn them on for as long as the program is running.

#!/usr/local/bin/python3 
from envirophat import light, motion, weather, leds
import thingspeak
from datetime import datetime
import time

channel_id="123"
api_key="456"
ch = thingspeak.Channel(channel_id, api_key)
leds.on()  # ??
try:
    while True:
        cas = datetime.now().isoformat()
        lux = light.light()
        print(cas, lux)
        print(ch.update({'field1': cas, 'field2': lux}))  # Maybe the reply has useful info
        time.sleep(20)  # Speed up for testing
except KeyboardInterrupt:
    pass
leds.off()