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Re: PIR sensor - wake and sleep using CH_PD & thingspeak upd

PostPosted: Fri Feb 05, 2016 4:22 am
by donnib
You might need a delay between report & shut down as a sort of debounce to prevent the ESP being woken straight away (you could proberbly disconnect and power off the WiFi during this delay if need to save battery).


Hey,
I tried this schematic and the code and most of the time after a PIR activity the board will reboot again meaning it will turn on/off multiple times. I guess your above comment is regarding that ? Have you solve it in your solution if so can you post the code for it ?

Also i would like to know the power consumption you are getting if you have data for it. I am using this PIR https://www.mpja.com/download/31227sc.pdf where it says it has Quiescent Current = <50uA but i can see you are mentioning that you use KC7783R (http://www.electronics123.net/amazon/da ... c7783r.pdf) which has Standby Current ( no load) 300uA which is quite high so i am curios on what the power consumption you see.

/donnib

Re: PIR sensor - wake and sleep using CH_PD & thingspeak upd

PostPosted: Mon Feb 08, 2016 11:50 pm
by nOOb
I'm working on a project where I'll be driving an ESP-12 from an ATMEGA328P, and need to be able to shut off the ESP completely when not in use. How much current does the ESP draw when it's shut off using this method?

Thanks!

Re: PIR sensor - wake and sleep using CH_PD & thingspeak upd

PostPosted: Tue Feb 09, 2016 5:32 am
by Barnabybear
nOOb wrote:I'm working on a project where I'll be driving an ESP-12 from an ATMEGA328P, and need to be able to shut off the ESP completely when not in use. How much current does the ESP draw when it's shut off using this method?

Thanks!


Hi, according to Espressif 0.5uA.
http://bbs.espressif.com/viewtopic.php?t=133

Re: PIR sensor - wake and sleep using CH_PD & thingspeak upd

PostPosted: Fri Feb 12, 2016 1:28 am
by nOOb
Barnabybear wrote:
nOOb wrote:I'm working on a project where I'll be driving an ESP-12 from an ATMEGA328P, and need to be able to shut off the ESP completely when not in use. How much current does the ESP draw when it's shut off using this method?

Thanks!


Hi, according to Espressif 0.5uA.
http://bbs.espressif.com/viewtopic.php?t=133


Thank You!