Generate (network) system message from ESP to my PC
Posted: Sun Jul 04, 2021 12:58 pmThe title might be a bit cryptic. Here's the thing:
Got an ESP8266, battery powered. It measures the temperature every 5min and sends it to Thingspeak, along with the time it took to be active and the battery power left. I have coded it such that it goes to deep sleep mode. The 'on' time is only some 1.3 secs/5 minutes. It measures the temperature and the battery Voltage, connects to Thingspeak, sends the data and goes to deepsleep for the next 5 minutes (all within these 1.3 secs) . So far so good.
I have it running now from may 17, 2021. It is still operative. Battery is down to 3.77V (from 4.2 fully charged). It is an old battery from an old phone, however, if it runs for 2 months without recharging now, I am happy with it.
The problem is that I do not monitor it daily anymore. So what I'd like to add is a warning signal from the ESP whenever the battery is drained to, say, 3.3V. A former battery I used was drained empty to 0V and I had to revive it, but it is now weak.
I found snippets of software to mail it via e.g gmail, Could work, probably will, but I am not happy with the detour via gmail. I operate the ESP and my main computer in the same home-network. My main computer is a linux operated computer. When I e.g. shut it down with the curse 'sudo shutdown -h now' it gives me a system message 'shutdown in ... secs'. I would like such a message to originate from the ESP to my PC.
Or any other direct message from ESP to my PC would do, but without installing any software in my PC for it. Just a 'hey! Charge me now' message or something like it. Or even an email from the ESP to my mailbox but without outside interference. (Hope I am clear).
Your input on this is welcome.....
Thanks Arjen
Got an ESP8266, battery powered. It measures the temperature every 5min and sends it to Thingspeak, along with the time it took to be active and the battery power left. I have coded it such that it goes to deep sleep mode. The 'on' time is only some 1.3 secs/5 minutes. It measures the temperature and the battery Voltage, connects to Thingspeak, sends the data and goes to deepsleep for the next 5 minutes (all within these 1.3 secs) . So far so good.
I have it running now from may 17, 2021. It is still operative. Battery is down to 3.77V (from 4.2 fully charged). It is an old battery from an old phone, however, if it runs for 2 months without recharging now, I am happy with it.
The problem is that I do not monitor it daily anymore. So what I'd like to add is a warning signal from the ESP whenever the battery is drained to, say, 3.3V. A former battery I used was drained empty to 0V and I had to revive it, but it is now weak.
I found snippets of software to mail it via e.g gmail, Could work, probably will, but I am not happy with the detour via gmail. I operate the ESP and my main computer in the same home-network. My main computer is a linux operated computer. When I e.g. shut it down with the curse 'sudo shutdown -h now' it gives me a system message 'shutdown in ... secs'. I would like such a message to originate from the ESP to my PC.
Or any other direct message from ESP to my PC would do, but without installing any software in my PC for it. Just a 'hey! Charge me now' message or something like it. Or even an email from the ESP to my mailbox but without outside interference. (Hope I am clear).
Your input on this is welcome.....
Thanks Arjen