mini drone wiring

Hello guys i'm building my first drone using the arduino pro mini , i'm following this tutorial

on how to build it but i have a problem with the wiring , i've connect the battery to the arduino and also the

hc-05 but i'm having problem with wiring the rest i've uploaded a picture of my wiring so far

can someone please help me wiring the rest.
Imgur
thanks!

(deleted)

i've tried but this is all that i know how to wire like i've said this is my first time building a drone or anything like this

there's still one thing that i don't understand what the + sign next to M1,M2,M3 mean
where do the cable go ?

(deleted)

M1 -> "M"otor 1
M2 -> Motor 2
M3 -> Motor 3

The plus next to the triangle means a connection to the supply (the positive of the battery most probably - read the documentation).

As for the BJT transistors, look at the pinout on the datasheet and match the connections to the schematic:

No offense, but