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Brushed motors Arduino drone

This tutorial is divided in two. First we build it using prototyping PCB then with my own design of preofessional PCB.

brushed drone menu 1
brushed drone menu 2





Step 4 The body

Well, my drone body is 3D printed uisng PLA material. You heve the STL files below if you want to print the same. Youl'll need a big printing area for the full body or use the divided parts for a smaller printer.

if you don't have a 3D printer, just made the body out of foam or thin plywood. Make it as lighter as you can since this drone won't have too much power.


arduino brushed drone circuit

The 3D files here



As you can see in the photo above, the body has holes in the arms for the DC motors gears. With just one screw, or maybe super glue, we fit those plastic gears in place. In these gear supports, we fit the DC motors and on the other side the plastic propellers. The body is basically ready. The plastic gear parts already have foots so the drone will be a bit high over the ground.


3D arduino drone

Now that the body is ready, all we have to do is to solder everything on the PCB and connect the wires from the DC motors to each MOSFET on the board. Make sure that the board is in the middle of the drone body adn well secured in place and then we will look over the code. When we connect the DC motors we haev to make sure that the propellers are rotationg in the correct direction and pushing air downwards.


3D arduino drone








Step 5 The prototype

Ok, we have the part list, the schematic and the drone body. The transmitter is the same as in the past tutorial so check that out. Now let's mount our prototype PCB.
We first solder in place the Arduino pro mini and the MPU6050 as centered as we can. The IMU has to be quite centered to the drone body.


Arduino drone brushed DC motors


Now, the next step is to solder in place the 3.3V voltage regulator for the NRF24 radio module. We add the input and output capacitors as well. Now we can solder the NRF24 module and make all the connections. Use PCB connections and alos thin wires for the SPI communication. Don't make too long connections since that will create more noise.


Arduino drone brushed DC motors