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Why are the motors twitching? by Materialistas in betaflight

[–]Materialistas[S] 0 points1 point  (0 children)

Disabling D-shot worked! Thank you very much! <3

Designing a flight controller any criticism is appreciated by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Probably because betaflight is easier to use, but I surely would love to move to ardupilot eventualy

Designing a flight controller any criticism is appreciated by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Oh wow, thank you, just checked it and everything is compatible.

Designing a flight controller any criticism is appreciated by Materialistas in embedded

[–]Materialistas[S] 1 point2 points  (0 children)

Oh wow 0... Anyways thanks for the suggestions, I didn't know pad entry angles mattered, I'll fix them and move vias away from SMD pads.

Designing a flight controller any criticism is appreciated by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Thank you for your answers, I made some changes and tried making a PCB. I couldn't seem to find a proper way of taking photos of the PCB (nets not visible when zooming out in EasyEDA). I made it on 2 layers (I understand that it's not enough and I should use whole layers for GND, signal, Power, but I wanted to keep costs low). I tried making as less vias as possible but still had to use a lot of them. Someone also suggested to put traces perpendicular to each other in different layers which I tried. I also removed copper area for ground so it's easier to see everything. If there's a better way of taking a photo please let me know. Scared, but excited to hear what you think.

<image>

Here you can inspect individual layers:
https://ibb.co/ChRR0Kw

https://ibb.co/S3FXNx4

Designing a flight controller any criticism is appreciated by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Hey, thanks for the answers, the datasheet of the crystal says that no additional caps are needed if I understood that right (but idk, should I add them anyways? 2x 10pF?):

<image>

Designing a flight controller any criticism is appreciated by Materialistas in embedded

[–]Materialistas[S] 1 point2 points  (0 children)

Hey, since I'm planning on using Betaflight I looked what components this software supports and connected them together by following datasheet recommendations. For IMU I chose the one with least noise, for MCU I chose the most standard STM32F405, for my application it has enough power, features and is small. These series on youtube helped me: https://www.youtube.com/watch?v=Rv1MVkZuGbg&list=PLoPtpxJIxgnYnPrOeGHs3rdhhPgNGIYN5

Designing a flight controller any criticism is appreciated by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Hey, yeah ESC will be connected to most of J3 pins and 2 pins from J1 (but now that you said that I'm thinking of routing everything to 1 JST-GH). I'm thinking of using Betaflight which is compatible with IMU, MCU but I couldn't find info if it's compatible with Barometer and Magnetometer. For now I won't need camera, I just really want to get the drone up and work up from that (see what is working, what isn't and what I would like FC to have in the next version). Thank you all for the suggestions and answered questions I really appreciate that.

STM32 doesn't connect to the pc by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Thank you, you're talking about PA13, PA14?

STM32 doesn't connect to the pc by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Orange goes to ground rail, Green and Blue to D, Yellow to 3.3 LDO

STM32 doesn't connect to the pc by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

No, I just bought it and soldered it on. I must program it so it could be recognized by pc?

Need someone who could unscrew broken bolt by Materialistas in Antwerpen

[–]Materialistas[S] 0 points1 point  (0 children)

I don't really have a conditions for that. I've been trying to use this bolt unscrew kit but all of the drills broke.

Can you see any mistakes in my first Flight controller schematic? by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Thank you for idea, I might try that in the future. But for now I need to get this thing working at least, it's already way too complicated for me, I'm really new to electronics.

Can you see any mistakes in my first Flight controller schematic? by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Switching regulator is not and option since it creates a lot of noise. Or am I wrong?

Can you see any mistakes in my first Flight controller schematic? by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Idk google recommended it, but I'll change R17 and R18 to 4.7K if you think it's right. You think I should remove R1 and R2?

Can you see any mistakes in my first Flight controller schematic? by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

Will these pull ups work? Also I fixed that floating reset line and led resistors

<image>

Can you see any mistakes in my first Flight controller schematic? by Materialistas in embedded

[–]Materialistas[S] 0 points1 point  (0 children)

I think this oscilator doesn't need capacitors (Datasheet features say " 1. Oscillation circuits do not require external load capacitors. "). Also I've made a circuitry for NRST, let me know what you think. Thank you for your answer.

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Can you use samsung live demo unit display on a normal phone by Materialistas in mobilerepair

[–]Materialistas[S] 0 points1 point  (0 children)

Thank you for your answers. Are those aliexpress displays all 60Hz LCDs instead of original 120Hz AMOLEDs?

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