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Battery life with NANO V3Nano v3

enter link description hereFirstEasy secret knock detector to trigger anything with only an Arduino and a few cheap components

First of all I need to state that I'm new to Arduino and electronics in general. My My question is regardingabout a project where the Nano is being powered up with a 12v rechargeable li-ion 2800mAh2800 mAh battery on pinpins VIN and GND.

I'm using the 5v Nano pin to power a SRD-05vdc05VDC-SlSL-C relay along with the ground pin from the Nano.The The IN pin on the relay is from the D11 pin on the nanoNano. So far so good.I'm I'm also using the same 12v battery to power up a solenoid latch, which energizes for just a few seconds.

When I tested this setup (less the relay AND solenoid) for battery life, my volt meter read 9.8v and 1 hour later 2.8v. causing the Nano to go off.

How can I increase battery life?

This is the link to the code I used  :

Hand drawn wiring diagram

I'm not having an issue with the code or the operation of the setup but the battery life is unacceptable.

Battery life with NANO V3

enter link description hereFirst of all I need to state I'm new to Arduino and electronics in general. My question is regarding a project where the Nano is being powered up with a 12v rechargeable li-ion 2800mAh battery on pin VIN and GND.

I'm using the 5v Nano pin to power a SRD-05vdc-Sl-C relay along with the ground pin from the Nano.The IN pin on the relay is from the D11 pin on the nano. So far so good.I'm also using the same 12v battery to power up a solenoid latch which energizes for just a few seconds.

When I tested this setup (less the relay AND solenoid) for battery life, my volt meter read 9.8v and 1 hour later 2.8v. causing the Nano to go off.

How can I increase battery life?

This is the link to the code I used  Hand drawn wiring diagram

I'm not having an issue with the code or the operation of the setup but the battery life is unacceptable

Battery life with Nano v3

Easy secret knock detector to trigger anything with only an Arduino and a few cheap components

First of all I need to state that I'm new to Arduino and electronics in general. My question is about a project where the Nano is being powered up with a 12v rechargeable li-ion 2800 mAh battery on pins VIN and GND.

I'm using the 5v Nano pin to power a SRD-05VDC-SL-C relay along with the ground pin from the Nano. The IN pin on the relay is from the D11 pin on the Nano. So far so good. I'm also using the same 12v battery to power up a solenoid latch, which energizes for just a few seconds.

When I tested this setup (less the relay AND solenoid) for battery life, my volt meter read 9.8v and 1 hour later 2.8v. causing the Nano to go off.

How can I increase battery life?

This is the link to the code I used:

Hand drawn wiring diagram

I'm not having an issue with the code or the operation of the setup but the battery life is unacceptable.

3 added 330 characters in body
source | link

Firstenter link description hereFirst of all I need to state I'm new to Arduino and electronics in general. My question is regarding a project where the Nano is being powered up with a 12v rechargeable li-ion 2800mAh battery on pin VIN and GND.

I'm using the 5v Nano pin to power a SRD-05vdc-Sl-C relay along with the ground pin from the Nano.The IN pin on the relay is from the D11 pin on the nano. So far so good.I'm also using the same 12v battery to power up a solenoid latch which energizes for just a few seconds.

When I tested this setup (less the relay AND solenoid) for battery life, my volt meter read 9.8v and 1 hour later 2.8v. causing the Nano to go off.

How can I increase battery life?

This is the link to the code I used Hand drawn wiring diagram

I'm not having an issue with the code or the operation of the setup but the battery life is unacceptable

First of all I need to state I'm new to Arduino and electronics in general. My question is regarding a project where the Nano is being powered up with a 12v rechargeable li-ion 2800mAh battery on pin VIN and GND.

I'm using the 5v Nano pin to power a SRD-05vdc-Sl-C relay along with the ground pin from the Nano.The IN pin on the relay is from the D11 pin on the nano. So far so good.I'm also using the same 12v battery to power up a solenoid latch which energizes for just a few seconds.

When I tested this setup (less the relay AND solenoid) for battery life, my volt meter read 9.8v and 1 hour later 2.8v. causing the Nano to go off.

How can I increase battery life?

enter link description hereFirst of all I need to state I'm new to Arduino and electronics in general. My question is regarding a project where the Nano is being powered up with a 12v rechargeable li-ion 2800mAh battery on pin VIN and GND.

I'm using the 5v Nano pin to power a SRD-05vdc-Sl-C relay along with the ground pin from the Nano.The IN pin on the relay is from the D11 pin on the nano. So far so good.I'm also using the same 12v battery to power up a solenoid latch which energizes for just a few seconds.

When I tested this setup (less the relay AND solenoid) for battery life, my volt meter read 9.8v and 1 hour later 2.8v. causing the Nano to go off.

How can I increase battery life?

This is the link to the code I used Hand drawn wiring diagram

I'm not having an issue with the code or the operation of the setup but the battery life is unacceptable

2 bit of paragraph reformatting, added additional tags.
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First of all I need to state I'm new to Arduino and electronics in general. My question is regarding a project where the Nano is being powered up with a 12v rechargeable li-ion 2800mAh battery on pin VIN and GND. 

I'm using the 5v Nano pin to power a SRD-05vdc-Sl-C relay along with the ground pin from the Nano.The IN pin on the relay is from the D11 pin on the nano. So far so good.I'm also using the same 12v battery to power up a solenoid latch which energizes for just a few seconds. When

When I tested this setup (less the relay AND solenoid)for for battery life, my volt meter read 9.8v and 1 hour later 22.8v. causing the Nano to go off I need to.

How can I increase battery lilife?

First of all I need to state I'm new to Arduino and electronics in general. My question is regarding a project where the Nano is being powered up with a 12v rechargeable li-ion 2800mAh battery on pin VIN and GND. I'm using the 5v Nano pin to power a SRD-05vdc-Sl-C relay along with the ground pin from the Nano.The IN pin on the relay is from the D11 pin on the nano. So far so good.I'm also using the same 12v battery to power up a solenoid latch which energizes for just a few seconds. When I tested this setup (less the relay AND solenoid)for battery life, my volt meter read 9.8v and 1 hour later 2.8v. causing the Nano to go off I need to increase battery li

First of all I need to state I'm new to Arduino and electronics in general. My question is regarding a project where the Nano is being powered up with a 12v rechargeable li-ion 2800mAh battery on pin VIN and GND. 

I'm using the 5v Nano pin to power a SRD-05vdc-Sl-C relay along with the ground pin from the Nano.The IN pin on the relay is from the D11 pin on the nano. So far so good.I'm also using the same 12v battery to power up a solenoid latch which energizes for just a few seconds.

When I tested this setup (less the relay AND solenoid) for battery life, my volt meter read 9.8v and 1 hour later 2.8v. causing the Nano to go off.

How can I increase battery life?

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