element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Personal Blogs
  • Community Hub
  • More
Personal Blogs
Legacy Personal Blogs Power Supply for Nano
  • Blog
  • Documents
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
  • Share
  • More
  • Cancel
Group Actions
  • Group RSS
  • More
  • Cancel
Engagement
  • Author Author: sasquatch84
  • Date Created: 29 Aug 2017 8:41 PM Date Created
  • Views 1444 views
  • Likes 2 likes
  • Comments 4 comments
Related
Recommended

Power Supply for Nano

sasquatch84
sasquatch84
29 Aug 2017

So I am planning on using the Arduino nano for the brains of my garden watering project.  I have a 12 volt power converter I kept from an old set of boot dryers that fell apart years ago.  I know that the Nano can handle the volts but seeing as it's at the higher end of the acceptable range and I want to leave this thing plugged in 24/7, I think I'll use one of my 7805's.  And since they lower voltage to 5 volts, I assume I can just run the power straight into the 5v pin. 

Does this seem like a waste of time?

Also, am I blogging properly?  I am so green...:(

image

  • Sign in to reply

Top Comments

  • beacon_dave
    beacon_dave over 7 years ago +2
    It looks like the Nano can take up to 20v unregulated on pin 30 so you should be ok with your 12v supply. https://store.arduino.cc/usa/arduino-nano Power The Arduino Nano can be powered via the Mini-B…
  • beacon_dave
    beacon_dave over 7 years ago in reply to sasquatch84 +1
    You should be ok as it has been designed to work with 12v supplies. It will also depend on what else you are planning on powering through the Nano's voltage regulator. Sounds like your project may be driving…
  • sasquatch84
    sasquatch84 over 7 years ago in reply to beacon_dave

    Yeah I'm driving a solenoid valve.  I'll definitely be running it from the 12v power supply.  Thanks!

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • More
    • Cancel
  • beacon_dave
    beacon_dave over 7 years ago in reply to sasquatch84

    You should be ok as it has been designed to work with 12v supplies.

     

    It will also depend on what else you are planning on powering through the Nano's voltage regulator. Sounds like your project may be driving solenoids etc. which you will want to look at powering separately from the Nano's supply.

     

    If you power it up you will soon find out how much it heats up.

    • Cancel
    • Vote Up +1 Vote Down
    • Sign in to reply
    • More
    • Cancel
  • sasquatch84
    sasquatch84 over 7 years ago in reply to beacon_dave

    Awesome.  So it won't heat up too much?

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • More
    • Cancel
  • beacon_dave
    beacon_dave over 7 years ago

    It looks like the Nano can take up to 20v unregulated on pin 30 so you should be ok with your 12v supply.

     

    https://store.arduino.cc/usa/arduino-nano

    Power

    The Arduino Nano can be powered via the Mini-B USB connection, 6-20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source.

    • Cancel
    • Vote Up +2 Vote Down
    • Sign in to reply
    • More
    • Cancel
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube