About

Gender

Male


Please tell us a bit about your UAV interest

I like the idea of assembling and programmming UAV on my own


Hometown:

thessaloniki


Activity Feed

Drone newbie posted a discussion
Hello,after hours and hours of searching on the internet i am still not able to stream video from my webcam( that is attached to my Rpi2/Navio2) to my PC through VLC. I have found pages and pages but nothing works.. When i do type lsusb i can see th…
Jul 15, 2016
Drone newbie posted a discussion
Hello,as I plan to extend my flight time and distance range, I decided to proceed with the build of a Li-Ion battery pack. I know that generally the disadvantage of Li-Ion 18650 batteries is the low discharge rate that they offer, so I need to be ca…
Jan 11, 2016
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Doug,

thanks for your comments.."
Nov 1, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Bill,Doug,

sorry for my late reply but I was away from home for business..

I attach a picture that shows a more complete connection diagram (sorry for the quality). I did try to fly the quadcopter as it is as the Vcc value now is in an accept…"
Oct 28, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear DOug,Bill

I now connected the ground from radio telemetry to APM (see below image) as well but the situation remains.. My measured values are almost the same


Is this a dangerous situation or as long as my hwvoltage value is steady 4.94V i co…"
Oct 14, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Bill,

ok i can try to connect the ground from radio to APM as well... 

I dont have any other BEC connected.. I am using the DHI E310 propulsion kit that uses the DJI 420S ESC. As far as I know those ESC's do not contain any BEC's... 
My JP1 j…"
Oct 13, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Goud,Bill,

I have installed the BEC as we said according to the schematic of my previous post, and here are my findings..
When I connect APM to Mission Planner, my hwvoltage value is now almost steady playing between 4.90V and 4.94V. So everyt…"
Oct 13, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear DOug,Bill

in order to conclude, according to your notes the final schematic I should follow is this ??





Is this BEC's characteristics appropriate for my case ??? -->  http://www.ariesrc.gr/6302-dys-sp-3a-5v-switching-bec.html

Thanks a lot…"
Oct 12, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Doug,

I have created a schematic of how the radio telemetry, the BEC and APM should connect to each other... Is is correct ??? If yes, where should the negative line of the BEC's output be connected ??? 


Thanks and  Regards,"
Oct 12, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Doug and Bill,

so if i understand correct, if my fuse is 500mA the only solution is to use a BEC??? If it is a 1A fuse I could use the usb to power my 500mW radio module. Correct?? Is there a way to check what fuse I have ??

If I have to use…"
Oct 11, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Bill and Doug,

thank you for your help.. I have two questions... 

1) given that my radio module has both molex and microusb ports(see image below),what if I power the 500mW radio through the usb port of the APM after I have disconnected the 5…"
Oct 10, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Doug,

I did tonight some measures again. Please have a look of my measures in the attached picture..

The first fact is that I always get 0.3V lower measures if i measure between the GND of PM and the positive input PWM pin compared to the Ser…"
Oct 9, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Doug,

I will wait for your response..

changes in APM v2.81) 100uf cap in Vcc and 10uf tantalum capacitor added to stop 3.3v bad gyro health issues2) Replacement of the (not used/redundant) 1.0mm 6p old GPS port with df13-4P I2C external compa…"
Oct 9, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Doug,

so as you mention probably the APMs that I am buying have some quality issues and thats why i am seeing the Vcc voltage fluctuations ??? 
My background says that i am an automotive/mechanical engineer working in the computational mechani…"
Oct 9, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Doug,

before testing the above as you mentioned I would like to tell you that yesterday night I replaced my APM unit with another new APM 2.8. Now, when I connect the battery and everything connected to APM, in the same measurement points (bet…"
Oct 8, 2015
Drone newbie replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Dear Doug,

my quadcopter is flying nice in terms of performance. However, I think I experienced just once a brownout. I was hovering luckily at 2m above ground and suddenly everything turned off and felt to the ground without damage. 

As you propo…"
Oct 8, 2015
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