user18496: Does the VCC Output pin always give out a consistent 5V Voltage supply? What is the current output?
This is the Chip I have. On the chip it says ProMini R160JAC6v. and When i program it. It programs under 5V 16MHz with ATmega 328

Here is the bluetooth chip I am powering:


user4143: If you power from USB the vcc pin gives you the voltage that USB is providing. Somewhere between 4.75 and 5.25v.
If you use external power it provides 5v since that is what the regulator provides.
The current limit is either the limit of the usb port or the limit of the regulator on your board. Check the datasheet for that regulator (hint: read the schematic to find the model of the regulator).

18496: <p>Does the VCC Output pin always give out a consistent 5V Voltage supply? What is the current output?</p>

<p>This is the Chip I have. On the chip it says ProMini R160JAC6v. and When i program it. It programs under 5V 16MHz with ATmega 328</p>

<p><a href="https://i.stack.imgur.com/meuD5.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/meuD5.jpg" alt="5V 16MHz with ATmega 328. If I want to power a 3.3V bluetooth chip can I do it with my board? "></a></p>

<p>Here is the bluetooth chip I am powering:</p>

<p><a href="https://i.stack.imgur.com/1iVWM.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1iVWM.jpg" alt="Back Side"></a></p>
 4143: <p>If you power from USB the vcc pin gives you the voltage that USB is providing. Somewhere between 4.75 and 5.25v.</p>

<p>If you use external power it provides 5v since that is what the regulator provides.</p>

<p>The current limit is either the limit of the usb port or the limit of the regulator on your board. Check the datasheet for that regulator (hint: read the schematic to find the model of the regulator).</p>
