"Hi guys! We are working on a big public archive with a lot of useful data about our aircraft, we are now working on finals exams of first semester in our engineering college (Politecnico Di Milano, a great school in northen Italy), we hope we will…"
Ludovico Antonio's Discussions
Can not read Vbatt with ardupilot
Started this discussion. Last reply by Ludovico Antonio Aug 10, 2011. 2 Replies 0 Likes
Hey guys!My ardupilot voltage reading isnt working =( In the telemetry (which is working fine) it reads "battery 3.83V" and I can not understand where is this value coming from. It reads 3.83 even if…Continue
I need a PWM output controlled from gas channel
Started Jun 21, 2011 0 Replies 0 Likes
Hey guys! in this project in order to get the battery cooperating with the solar panels I need to pwm the…Continue
LUSA - Low Cost Unmanned Solar Aircraft
Started this discussion. Last reply by Ludovico Antonio Feb 12. 16 Replies 2 Likes
Hey guys!I`m a student form italy and last year (senior year) me and my best friend made 2.3 meters (something like 2.7 yard) solar powered aircraft, of course handled by ardupilot!It has been more…Continue
I need to have cyclics waypoints, help please
Started this discussion. Last reply by Riccardo Kuebler Jun 27, 2010. 1 Reply 0 Likes
Hi, Our (of my and my best friend) drone is almost ready to be shown to our teachers, we just need a li`l help with the code.We are using ardupilot 2.4.6 with excellent results and we don`t have time…Continue
Ludovico Antonio's Page
Latest Activity
Ludovico Antonio commented on Jordi Muñoz's blog post Please welcome ArduPilotMega 2.0!"After seeing this I did qhat a Lonely Islands song sings about lol.... This is a work of art, cannot wait to have it (and have summer sun back again) to take our solar drone over the 200mins flying time mark!!!!!"
Ludovico Antonio replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"Thankyou for the links,
we know that shading a single cell in a series "kills" the whole thing but this is not something that happens on our plane, where all the cells are exposed almost always in the same way, so since the power of…"
bGatti replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"I think you need to research the consequences of shading a solar cell. It's not as insignificant as "dead…"
Ludovico Antonio replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"Shaded parts of the cell is pretty sad because for half of the time (we we are not flying with the sun in fornt or on the back) a little portion of each cell is not being used, still, that part is relatively small when the sun is high in the sky and…"
bGatti replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"Ludo,
I notice each of your main Solar cells is shadowed slightly by the wing struts.
I believe if you research Solar cell best practice, that even a little bit of shade on a cell will cause the shaded part of the cell to consume energy and bring…"
Ludovico Antonio replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"Hi! You are right, the covering is incredibly transapernt but at some angles (sadly, even 25 deg. is enough) the reflections gets very high... Only the guys working on Solar Impulse managed to make a covering film that doesnt have this problem but…"
Ralph Bell replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"Congratulations, that is pretty impressive. I was wondering if your solar panels would be more efficient if you could somehow manage to mount them flush. Even though your outer cover is clear, you are probably losing some efficiency to reflection at…"
Ludovico Antonio replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"Ok guys I added a slideshow with some pics in the main post! =) Also, I need hints in how to tune autopilot to fly an extreme light plane, 1.6 kg, in a strong wind considering its 2.3m wingspan. Tnks!!"
Ludovico Antonio replied to Ludovico Antonio's discussion Can not read Vbatt with ardupilot"Pilot 2.6 header file only has #define INTPUT_VOLTAGE and I correctly set it to 5000, probably battery event is assumed by default on 1 since it keeps on trasmitting (wrong) data. Could it be some sort of HW problem??"
Ludovico Antonio replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"We got the fibers and the resins from shaller composites (idk how it spells, the airframe was actually built by my project mate), the motor+balsa+ding`n`dents from our local hobby supplier and the battery+esc from another sponsor. Panels are from…"
Nick replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"Thanks, I really want to try this out. Where did you order most of your parts? What was your guys' budget?"
Richard Warrender replied to Ludovico Antonio's discussion Can not read Vbatt with ardupilot"Hi, have you set up the battery voltage in the AP_Config.h file?
/***************************************/
//Battery:
#define BATTERY_EVENT 0 // (boolean) 0 = don't read battery, 1 = read battery voltage (only if you have it wired…"
Ludovico Antonio replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"Sure dude! We used an eco18 esc (hacker rebranded but I think its the same) with a hacked b20 15l + 4:1 maxxon gear planetary reduction. rx is futaba fasst, ardupilot is 2.6 w thermopiles.
Fuselage is fiberglass with carbon reinforcements,…"
Nick replied to Ludovico Antonio's discussion LUSA - Low Cost Unmanned Solar Aircraft"Could you give us some more detailed specifications about your plane such as what escs, motors, other parts you used.
Thanks,
Nick"
Ludovico Antonio posted a discussionCan not read Vbatt with ardupilot
Hey guys!My ardupilot voltage reading isnt working =( In the telemetry (which is working fine) it reads "battery 3.83V" and I can not understand where is this value coming from. It reads 3.83 even if the proper battery readings pin is not connected and very small changes happens if I plug the battery to it.Any suggestions? Many tnks!See More
Comment Wall (1 comment)
- At 4:01am on June 15, 2010,
iangl said… - bella fratè, ho appena iniziat anche io, e i problemi non mancano. il mio pilot controllerà un elicottero autonomo in un futuro alquanto lontano. teniamoci in contatto baibai
Angelo
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