Introduction: Arduino Power Supply
Step 1: Parts
1. 1 9volt battery
2. 1 9volt battery connector
3. 1 connector
Step 2: Soldering
Solder the connector to the 9v clip
Step 3: Finished Product
Enjoy

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1. 1 9volt battery
2. 1 9volt battery connector
3. 1 connector
Solder the connector to the 9v clip
Enjoy
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12 Discussions
6 years ago
There is also a "Vin' port which can accept voltages it's on the power terminal block, it also goes through the regulator ;)
Reply 6 years ago on Introduction
last time I tried that it got warm
Reply 6 years ago on Introduction
Perhaps use a 9v battery, I can run mine for more than 4hours and I have tested the power regulator with an oscilloscope and an infrared thermometer probe and it looks fine.
I wouldn't use more than 9volts and 500mA though.
6 years ago
Oops wrong person
6 years ago
Does anyone know how to save data from a sensor to a sd card with arduino
6 years ago
Will it run on 6volts?
6 years ago
I think the arduino uno can except up to 12 volts but I wouldn't do it unless you new exactly how many volts it excepts
Reply 6 years ago on Introduction
According to the website it can technically accept up to 20V, however the voltage regulator will run too hot if run over 12V.
6 years ago
Just use a 6v lantern battery from a flash light
6 years ago on Introduction
I have found that a 9 volt battery only last about a day.
I have started including 'wall warts' in my designs from the start. This allows a more continuous power flow
6 years ago
Yeah it is really helpful
6 years ago on Introduction
thanks i actually needed this