From eba at ebassociates.co.uk  Fri Jul 17 10:38:17 2020
From: eba at ebassociates.co.uk (EBA Consulting Ltd)
Date: Fri, 17 Jul 2020 09:38:17 +0000
Subject: [Swansea Hackspace] Solar Panel Battery Charging
Message-ID: <f5c9e5468b3542649f782626e6177bec@ebassociates.co.uk>

Hi


I have designed a system with 3 sensors (Temp,Light and level) they run from an Arduino- wifi unit. I have powered it using a 9v PP3 battery.


The system will be located outside the property but in range of wi-fi.  There is no power so I would like to use a re-chargeable 9v battery connected to a solar panel to keep it topped up.


I am looking for help to provide a hardware design solution to achieve this.


Thanks

Regards

Eddie Ball
EBA Consulting Ltd
+44(0)7767426142
+44(0)1554890300
Website:  http://www.ebassociates.co.uk/


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From alice at swansea.hackspace.org.uk  Fri Jul 17 14:27:15 2020
From: alice at swansea.hackspace.org.uk (Alice Mitchell)
Date: Fri, 17 Jul 2020 14:27:15 +0100
Subject: [Swansea Hackspace] Solar Panel Battery Charging
In-Reply-To: <f5c9e5468b3542649f782626e6177bec@ebassociates.co.uk>
References: <f5c9e5468b3542649f782626e6177bec@ebassociates.co.uk>
Message-ID: <b778277a3b6f211c9823604fe3fc989a075cb064.camel@swansea.hackspace.org.uk>

On Fri, 2020-07-17 at 09:38 +0000, EBA Consulting Ltd wrote:
> Hi
> 
> 
> I have designed a system with 3 sensors (Temp,Light and level) they
> run from an Arduino- wifi unit. I have powered it using a 9v PP3
> battery.
> 
> 
> The system will be located outside the property but in range of wi-
> fi.  There is no power so I would like to use a re-chargeable 9v
> battery connected to a solar panel to keep it topped up.
> 
> 
> I am looking for help to provide a hardware design solution to
> achieve this

I would be curious to know what Arduino board you are using, a lot of
the standard ones used a linear voltage regulator for the power supply
which will waste a lot of power and might make the power consumption
too high to be practical for long term solar power.

Have you seen projects like this one ?
https://www.instructables.com/id/Solar-Powered-WiFi-Weather-Station-V20/

They use a Wemos D1 Mini as the microcontroller (its an ESP8266 dev
board), powered by a standard LiIon battery, connected to one of those
off the shelf lithium charging boards like we stock in the space and a
solar panel.


From eba at ebassociates.co.uk  Fri Jul 17 14:53:18 2020
From: eba at ebassociates.co.uk (E Ball)
Date: Fri, 17 Jul 2020 14:53:18 +0100
Subject: [Swansea Hackspace] Solar Panel Battery Charging
In-Reply-To: <b778277a3b6f211c9823604fe3fc989a075cb064.camel@swansea.hackspace.org.uk>
References: <b778277a3b6f211c9823604fe3fc989a075cb064.camel@swansea.hackspace.org.uk>
Message-ID: <23F85BB5-7B7B-4EDB-B06F-E0FFB12C1852@ebassociates.co.uk>

Thanks il check your answer out - I am using Arduino UNO Wi-fi Rev 2 

Regards
 
Eddie Ball
EBA Consulting Ltd
+44(0)7767426142
+44(0)1554890300
 
Visit Our Web Site
 


Sent from my iPhone

> On 17 Jul 2020, at 14:31, Alice Mitchell <alice at swansea.hackspace.org.uk> wrote:
> 
> ?On Fri, 2020-07-17 at 09:38 +0000, EBA Consulting Ltd wrote:
>> Hi
>> 
>> 
>> I have designed a system with 3 sensors (Temp,Light and level) they
>> run from an Arduino- wifi unit. I have powered it using a 9v PP3
>> battery.
>> 
>> 
>> The system will be located outside the property but in range of wi-
>> fi.  There is no power so I would like to use a re-chargeable 9v
>> battery connected to a solar panel to keep it topped up.
>> 
>> 
>> I am looking for help to provide a hardware design solution to
>> achieve this
> 
> I would be curious to know what Arduino board you are using, a lot of
> the standard ones used a linear voltage regulator for the power supply
> which will waste a lot of power and might make the power consumption
> too high to be practical for long term solar power.
> 
> Have you seen projects like this one ?
> https://www.instructables.com/id/Solar-Powered-WiFi-Weather-Station-V20/
> 
> They use a Wemos D1 Mini as the microcontroller (its an ESP8266 dev
> board), powered by a standard LiIon battery, connected to one of those
> off the shelf lithium charging boards like we stock in the space and a
> solar panel.
> 
> _______________________________________________
> Hackspace mailing list
> Hackspace at swansea.hackspace.org.uk
> http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
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From ceri.clatworthy at gmail.com  Fri Jul 17 18:41:14 2020
From: ceri.clatworthy at gmail.com (Ceri Clatworthy)
Date: Fri, 17 Jul 2020 18:41:14 +0100
Subject: [Swansea Hackspace] Solar Panel Battery Charging
In-Reply-To: <23F85BB5-7B7B-4EDB-B06F-E0FFB12C1852@ebassociates.co.uk>
References: <b778277a3b6f211c9823604fe3fc989a075cb064.camel@swansea.hackspace.org.uk>
 <23F85BB5-7B7B-4EDB-B06F-E0FFB12C1852@ebassociates.co.uk>
Message-ID: <CAO=DJn_jO=ZvvP1tdib5_MhXJ2viKKGB9UzfFazJ0_7BXm-1jw@mail.gmail.com>

Assuming you only need 3V3, then you could just charge an 18650 LiPo with
Resistor & Diode directly from solar panel,

*Yes I know it is not the best solution, but if the solar panel is about
the right 'power' O/P then it should be OK,*
*After all, that's how MOST solar security lights work.*


Assuming you are using something like a D1 mini, then you can probably just
connect the LiPo directly across it's 5V input.




On Fri, Jul 17, 2020 at 2:54 PM E Ball <eba at ebassociates.co.uk> wrote:

> Thanks il check your answer out - I am using Arduino UNO Wi-fi Rev 2
>
> Regards
>
>
>
> Eddie Ball
>
> EBA Consulting Ltd
>
> +44(0)7767426142 <+447767426142>
>
> +44(0)1554890300 <+441554890300>
>
>
>
> Visit Our Web Site <http://www.ebassociates.co.uk>
>
>
>
> [image: Twitter_logo 1] <https://twitter.com/#!/eddieballeba>[image:
> Facebook]
> <https://www.facebook.com/pages/EB-Associates/340230642758062?ref=ts&fref=ts>
>
> Sent from my iPhone
>
> On 17 Jul 2020, at 14:31, Alice Mitchell <alice at swansea.hackspace.org.uk>
> wrote:
>
> ?On Fri, 2020-07-17 at 09:38 +0000, EBA Consulting Ltd wrote:
>
> Hi
>
>
>
> I have designed a system with 3 sensors (Temp,Light and level) they
>
> run from an Arduino- wifi unit. I have powered it using a 9v PP3
>
> battery.
>
>
>
> The system will be located outside the property but in range of wi-
>
> fi.  There is no power so I would like to use a re-chargeable 9v
>
> battery connected to a solar panel to keep it topped up.
>
>
>
> I am looking for help to provide a hardware design solution to
>
> achieve this
>
>
> I would be curious to know what Arduino board you are using, a lot of
> the standard ones used a linear voltage regulator for the power supply
> which will waste a lot of power and might make the power consumption
> too high to be practical for long term solar power.
>
> Have you seen projects like this one ?
> https://www.instructables.com/id/Solar-Powered-WiFi-Weather-Station-V20/
>
> They use a Wemos D1 Mini as the microcontroller (its an ESP8266 dev
> board), powered by a standard LiIon battery, connected to one of those
> off the shelf lithium charging boards like we stock in the space and a
> solar panel.
>
> _______________________________________________
> Hackspace mailing list
> Hackspace at swansea.hackspace.org.uk
> http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
>
> _______________________________________________
> Hackspace mailing list
> Hackspace at swansea.hackspace.org.uk
> http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
>
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