ESP8266 Community Forum

- Sat Mar 28, 2015 11:53 am #12839

Argh! I forgot to check the notify me of replies button again! Twice this morning - I think I need another cup of coffee...

coffee is good... I lost much sleep the past few days over HTTPS connection, finally come to the conclusion that it is not possible with the current SDK., at least for google.com and pushbullet.com.

- Sat Mar 28, 2015 12:23 pm #12846 Now I re-read your blog and see that you are using an opto-coupler - OK. I had stopped reading it before because
the small PIR sensors don't have LED's and such - I assumed that there was a big hardware difference and stopped reading - my mistake.

I think other than the opto the big difference between your solution and my not-working-one is that you boot the ESP and do the mqtt connection then shut down the ESP.

OTOH I leave the ESP up, use the PIR to trigger an interrupt on the ESP, shutting the radio on and off as needed. Which is all working except after 5 minutes of no activity I can no longer get my mqtt broker connection. Radio is on, I'm connected to the AP, have the correct connection status, etc - just never get the mqtt broker connect.

My next step was going to be to reboot the ESP every so often (actually whenever I can no longer connect to my mqtt broker) - which I think will essentially do the same thing as your "boot ESP every time" solution.

That solution bothers me - the whole idea that I can only get a good mqtt connection when the ESP is freshly booted just bothers me.
I want to know why it works perfectly for 4 minutes but after 5 minutes the same re-connection loop that worked for 4 minutes before now no longer gets the mqtt connect.

There's got to be a reason why - something I'm missing, like I missed the whole watchdog timer problem for days.

- Sat Mar 28, 2015 1:37 pm #12854 How do you turn the radio on and off? By using sleep option? For me, I cannot turn on the radio without triggering the PIR so this is the only solution for me. Works for me since I only need a notification.

- Sat Mar 28, 2015 1:43 pm #12855 I first turn interrups off by setting the gpio of the PIR from trigger to input.
Then I just disconnect with wifi.sta.disconnect()
I determined from using LuaLoader that this is enough to make the radio- PIR interference stop.