first of all, i am sorry if i have grammar mistakes, i am asian and i am 13 years old, i study arduino by my self (mostly my self) and this is my first project and also my first instructables. this is the robot that i used to compete with my friends in soccer robot. i did some modifications when i used it but it is broken now, so what i show you here is just a smartphone control robot. i will upload the improved, actual soccer robot soon. Thank you to Phan Hoang Anh- my tutor, he helped me alot with the code
Step 1: Materials
here is what you’re going to need
-Arduino uno r3
-hc-05 (bluetooth module)
-l298n motor control module
-2 motor
-android phone( i don’t know how to control with ios) or a laptop with Bluestacks
-small bread board
-wires
– 3.7v ultra fire batteries x 2
– battery holder ( yes, i don’t know what it is called)
-robot platform(picture 6)
Step 2: Hard-ware
arduino pin 6->in1 or a (of l298n module)
arduino pin 7->in2 or b (of l298n module)
arduino pin 8->in3 or c (of l298n module)
arduino pin 9->in4 or d (of l298n module)
l298n pin +5-> arduino pin 5v ->
l298n pin gnd-> power source (-)-> arduino power plug(-) (arduino power plug is the first picture )
l298n pin vcc->power source (+) ->arduino power plug(+)
arduino pin gnd -> hc-05 gnd
arduino pin tx-> hc-05 rxd
arduino pin rx-> hc-05 txd
(note: i am very sorry for the bad image that i made in ‘paint’, the circuit simulator does not have an icon for l298n motor driver)
Step 3: Software
here is the code, you can just copy and paste it into the arduino software
(note: when you upload the code, plug of tx and the rx of the arduino, if you don’t, it will not work, i know why but it is very hard to explain it in english)
this is the app inventor code:
go to gallery in app inventor 2 and search for ‘robot project’ with this robot’s picture
Step 4: Finishing Step
put every thing on a platform, put on the motor and the wheels like this and you’re ready
Source: Arduino Robot
