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bhunt2 / QC1.0

Design, documentation, and code for our first quadcopter
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Powering the Edison #26

Closed bhunt2 closed 8 years ago

bhunt2 commented 8 years ago

I noticed that in your meeting notes you had an issue that was not yet added. I am adding to get the conversation going and to have it documented.

From the notes - Issue: how to power the Edision. It needs 7 to 15V. Options: External Batteries, sparkfun battery block.

What do you mean by external batteries? Does this include the use of the drone power batteries that is powering the motors and the Flip? Would not this be the ideal solution for powering the Edison? Please elaborate on your ideas so we can get this issue taken care of quickly.

sabmah commented 8 years ago

I think Kainoa continued this issue on this thread: https://github.com/bhunt2/QC1.0/issues/25#issuecomment-207925559

bhunt2 commented 8 years ago

This should be a separate discussion that we talk about how you guys are going to power all the of the necessary components. The fact that the Edison may need a certain voltage to be a USB host just restricts our options. Issue #25 is specifically for getting the camera connected where may or may not be part of that.

bhunt2 commented 8 years ago

@Kekahuna @sabmah @hautruong36 @spesialstyrker

Just a side note about powering the Edison. Many people are referencing 12V, but really it is anywhere between 7V and 17V supply with 1A max current. The Edison has an onboard power regulator to bring it down to the voltage is needs for its separate components. It may be necessary to purchase a different board (Edison Mini Breakout Board for example) in order to get all the functionality we desire, but lets see what you come up with. Please prepare to make the decision in our meeting on Friday.

bhunt2 commented 8 years ago

@hautruong36

I found this option for powering the Edison. You will need to have a common ground to work with, but since the Edison and Flip will only be working together for serial communications we don't need to worry about anything else. This may run through 9V batteries quick, but it is an easy option at least to get things going and then work on a better solution later.

http://tiredhacker.blogspot.jp/2015/01/the-most-important-stuff-to-know-about.html

bhunt2 commented 8 years ago

@hautruong36

Another option would be to use a couple of single cell LiPo batteries that are cheap and rechargeable. Three of them in series should do the trick. They would last longer than a 9V, they would recharge when the mini breakout is plugged into USB and there are a variety of Ah sizes to suit our needs.

hautruong36 commented 8 years ago

I had the 9V battery in mind as a plan B. However, we want to deliver power from the drone battery itself if possible.

bhunt2 commented 8 years ago

@hautruong36

In the issue about camera connected I found additional information that states we need to supply at least 12V to enable USB hosting. So, 9V won't be an option.

bhunt2 commented 8 years ago

@hautruong36

Option for powering the edison is to use a 12V power regulating circuit using something like this, https://www.sparkfun.com/products/12766. Or possibly one of these, http://goo.gl/SARoNN.

hautruong36 commented 8 years ago

I looked at those options as well. For now, I have made connector for 9V battery to test it first. For 12V, we can use power supply in the tektronic lab or capstone lab for temperately solution. I will go with power regulator or somthing similar.

Kekahuna commented 8 years ago

As I've stated in the "Edison Not Detecing USB Camera" issue, the Edison runs as a USB host with a 9V battery supplied so we don't have to limit ourselves to 12V. I think people state 12V gets it to work because a 12V wall wart power supply is pretty easy to come across. I figured I'd state that 9V works fine in case that helps your task at all.

bhunt2 commented 8 years ago

@hautruong36

Please update with how this is going and let me know if you are having any issues. Also, please update the Wiki with the work that you are doing so everyone knows how you are doing it.

hautruong36 commented 8 years ago

I just need to test with mini breakout to make sure it's ok. I used 7809 regulator with 1A max output. I was going to build a thru-holes board, but it's taking space on the drone's body. I went with sky wiring. I also tested the circuit on breadboard, and it outputs 9V for 11-16V input. We should be good with this solution. I already have 7809 on the drone without decoupling caps. When I get the drone back from Sabin, I will have the caps on there, and close this issue.

bhunt2 commented 8 years ago

awesome, thanks for updating On May 9, 2016 10:07 AM, "hautruong36" notifications@github.com wrote:

I just need to test with mini breakout to make sure it's ok. I used 7809 regulator with 1A max output. I was going to build a thru-holes board, but it's taking space on the drone's body. I went with sky wiring. I also tested the circuit on breadboard, and it outputs 9V for 11-16V input. We should be good with this solution. I already have 7809 on the drone without decoupling caps. When I get the drone back from Sabin, I will have the caps on there, and close this issue.

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hautruong36 commented 8 years ago

Output was tested and it works fine with mini-breakout. Closing this issue