#157 | dr06 – Drone control from the hardware side

Hi guys,

I am a bit late for this post, sorry. With Bach, we have been able to fly the drone! However, we still need some improvements before to show you. In fact, we wanted to take one of the video when we will be sure about our test.

First improvement we have done was a change of materials in the propellers. We used to use plastic propellers in the first test, but for this one, we decided to use carbon nylon for the resistance of the material. It is less flexible than the first ones, but it is not what we want for now.

The second thing we wanted to improve was the position of the raspberry camera. Our drone is quite small so it is hard to for everything on it. However, we managed to also put the GPS module on the drone. This part of the drone will be interesting for a flight mode.

There are in fact a lot of flight mode, but 4 of them will interest us depending on the control we want.

1) Auto: a full automatic flight mode to be able to stabilize or move depending on default parameters and coordinates, for example, a flight between two different points of a map.

2) Stabilize: the manual mode where you just need to do everything by yourself (the yaw, roll and barrel. I will explain you later).

3) AltHold: the most interesting mode for us now, it is quite simple to handle, it is like a mid-automatic, mid-manual mode. The height of the drone is controlled by a saved position depending on the position of your controller stick.

4) Loiter: is somehow a bit particular since we haven’t been able to make it fully work. This mode use the GPS coordinates of the drone to control the flight and altitude.

These modes can be modified from your computer or from your smartphone. Bach will probably talk about it later.

The flight of the drone can be described by three different positions: barrel, roll or, yaw. Barrel and roll, means literally the move from upside and down from the front or lateral sides of the drone. Yaw means the horizontal movement of the drone above the ground surface for it’s change of direction.

There are still a lot to say about the flight of the drone, for example the duration and so on, but I won’t talk about it for now since we don’t have precise data for that.

Anyway, next time it will be a short post again. Sorry again for the late writing, thanks for the reading!

See ya!

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