10528 réponses à ce sujet

[Serveurperso]

And this problem disappear with factory configuration?

[OdorousWo1f]

it's not a configuration issue, i can use the robot for maybe a few minutes at times with no config changes.
if it was a config issue it would be completely unusable right?

[Serveurperso]

a bad configuration can make many case of strange bugs and client crash/restart...
you can enable "DEBUG" inside hardware configuration panel and give the log of the crash

[Deleted_User]

quelqu'un peut m'aider pour mon nouveau drone

[Mike118]

Quel est le problème rencontré ?

[OdorousWo1f]

i don't really know if this is something that someone has tried before.

can I use a pi zero or something with a telemetry 440MHz radio that I can talk to, then tell that to send a signal through its GPIO, to another pi and tell that pi to reboot? reason is I've had some issues before where lockups can occur and this pi is being used for an outdoor robot where it would be extremely hard to recover if it were to crash in my case.

[firened]

there's a large amount of possibilities,
perhaps pi have a watchdog that can be activated,
or build a hardware watchdog out of any arduino and a gpio that your pi has to toggle every minute or it gets reset,
or a 433MHz receiver switch that you control with one of those cheap 2 button mini remotes,

but, the best way is solving your crashs.

[OdorousWo1f]

it's not crashing commonly, and there is no active issue. i already have the hardware to do this and the idea in my head so might as well, better be safe then sorry.

i do like your idea of the audrino watchdog timer, that seems like a better and cheaper solution.

[firened]

RF , was thinking of something like this
https://a.aliexpress.com/_EHl03l1


or with the Arduino, you can use the Vigibot serial example code. it sends a keep alive frame every 10s. wouldn't be compatible with opencv if I'm not mistaken
Icecream's TTS didn't work since months.
(then i ran apt upgrade then it didn't even boot anymore and the card was unreadable)
since the fresh install on a new SD, the TTS works again. it surprised me. corrupt data can apparently have strange symptoms...
I'm now convinced opencv, battery voltage reading problems and pi crashes on pancake and CakeOnIce to also be data corruption..

[OdorousWo1f]

yup indeed, look at what happened to mine. it nearly drove itself down a flight of stairs with a corrupted card
it drove forward out the door at a slight angle right down to it. i managed to run and catch it at the last second

[firened]

what's interesting is that your ESC requires an active PWM signal to work, which means the pi wasn't fully hung up and pigpio was still doing its thing

[OdorousWo1f]

when this happened i had switched to opencv (which at the time was VERY broken) and everything on screen went crazy and it decided it didn't want to live anymore.
the pi itself was never locked up at that time

[firened]

[OdorousWo1f]

raspberry pi: i like stairs
motor controller: what the HELL are you doing?????

[OdorousWo1f]

has anyone here ever made a custom lipo 18650 pack? i'm looking to make a 6s pack of LG MJ1 cells to make a max voltage of 25.2 volts, and using this BMS/balancer board. https://www.amazon.c...H0U4TGVUQ&psc=1

is there anything i should know before I do this so i can avoid burning the house down?

[Deleted_User]

4X4 have 4S3P , on Google you have a lot or examples

[OdorousWo1f]

what cells did you use, and how long typically does your pack last as a baseline

[Deleted_User]

Panasonic 18650
6h

[OdorousWo1f]

what BMS/balancer?
@Deleted User sorry

[Deleted_User]

bms 4s
je ne sais plus combien d'ampère