ESP8266 + ESPEasy + Battery => share of results

Everything about esp8266 and more.
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JohnnySK
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ESP8266 + ESPEasy + Battery => share of results

Post by JohnnySK » Wednesday 05 April 2017 13:40

Hi all domoticz fans :)
lot of times somebody helped to me on this forum, so I decide share my tests and tries with battery powered sensors.
Datasheet and everybody says abou maximal voltage on ESP8266 is 3.8V but that is not absolutly true.
I made lot of measurements and experiments with 18650 Li-ion batteries as power source for ESP8266.
As protection I added shotky diode between ESP and battery (shotky pull-down voltage of battery) but consuption of diode was higher than consuption of ESP when you connect in on higher voltage as is recomended.
When I connected current meter between power source and ESP, I saw some dependance between voltage and current consuption. On higher voltage (4.5V) is higher current consuption. I tried compare discharge li-ion battery from 4,2V to 2,5V with and without compensation diode.
Result is.. do not use diode :lol:
If you use very good LDO regulator, with veeeery low internal consuption.. That is better solution.

I'm using sleep mode in ESPEasy and whole concept of ESPEasy it's very good for me, so I ended my own programming of project and using ESPEasy on battery sensors.

Maybe somebody will help this.
Here you are my small results with different batteries and measurements:
(on ESP-01/02 I've made hack - soldered GPIO16 pin to Reset for use sleep mode)

sorry for grammar mistakes in my English
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ESP life table
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heggink
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Re: ESP8266 + ESPEasy + Battery => share of results

Post by heggink » Wednesday 05 April 2017 14:06

have you tried to use a 3.3v step up/down converter with an 18650? I have the converter but no protected 18650 so cannot test without ruining the battery.
Pi3, latest beta
RFXCOM, z-wave (AEOTEC, switches, temhum, pir, contacts),
Plugwise2py, P1 'smart'meter & solar panel
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Derik
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Re: ESP8266 + ESPEasy + Battery => share of results

Post by Derik » Wednesday 05 April 2017 17:50

mmm
I am not smart for this stuff.

Only perhaps the master of Home-automation does:
http://blog.hekkers.net/esp8266-power-u ... surements/
Or:
http://blog.hekkers.net/2015/04/06/esp8 ... ed-sensor/

Master because:
http://www.hekkers.net/domotica/
Long before......
xxx
Xu4: Beta Extreme antenna RFXcomE,WU Fi Ping ip P1 Gen5 PVOutput Harmony HUE SolarmanPv OTG Winddelen Alive ESP Buienradar MySensors WOL Winddelen counting RPi: Beta SMAspot RFlinkTest Domoticz ...Different backups

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JohnnySK
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Re: ESP8266 + ESPEasy + Battery => share of results

Post by JohnnySK » Tuesday 15 August 2017 13:44

heggink wrote:
Wednesday 05 April 2017 14:06
have you tried to use a 3.3v step up/down converter with an 18650? I have the converter but no protected 18650 so cannot test without ruining the battery.
You don't need to use it.. Use just a protection board for battery and connect output directly to ESP8266.

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heggink
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Re: ESP8266 + ESPEasy + Battery => share of results

Post by heggink » Friday 18 August 2017 21:35

if you have a board then yeah :-).
Pi3, latest beta
RFXCOM, z-wave (AEOTEC, switches, temhum, pir, contacts),
Plugwise2py, P1 'smart'meter & solar panel
Alexa, Wifi Cams motion detection
ESP: relays, PIR & Temp/TempHum
Geofence iCloud, Bluetooth & Wifi ping
Harmony hub, Nest

MartHale
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Re: ESP8266 + ESPEasy + Battery => share of results

Post by MartHale » Sunday 05 August 2018 20:53

What settings do you recommend for testing sleep mode?

So do you touch a wire from GPO 16 to reset to get this mode started? ( if So I may install a momentary switch for this )

I have never done this, and if you can point me to a tutor, as I did not see one on their site.

At present my solution is using a solar charge controller to power 6 lithium cells at 12 V, the charge controller has USB outlet which I power the ESP8266 with.


Thanks!
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