RC Arduino Mars Rover - 6WD/4WS - at 2 x speed

Built this a while back, but finally put the video up :) I designed all parts (grey colour) using Fusion 360 and printed them on a Cocoon Create 3D printer through many, many design iterations...

All in all its just fun to drive around over stuff, and have lately been thinking about additions I'd like to make like front and rear lights and some kind of paint job/scheme - like to fit in with LV426 tech. Anyway, hope you enjoy the vid :)

Tech stuff:
I used an Arduino Mega to handle the RC receiver signals and the 6 x drive gear-motors, along with an Arduino Nano to handle the steering and the front 'robo-arm'. Wrote a total of around 1200 lines of code (lotsa ifs and use of "millis()"... lol).

I used a standard 6 channel 2.4ghz RC transmitter and receiver, with 1 channel for forward/reverse, 1 channel for steering, 1 channel for 360 degree rotate function, and 1 channel for the robo-arm. This leaves a few spare channels for future additions.

There's a 2200mah 11.1v Lipo dropped down to 6v to power all the drive motors and the 4 x steering servos, as well as a 1000mah 7.4v Lipo dropped down to 6v to power both Arduinos.

3 x dual H-Bridge motor drivers are stacked together and cooled by a small 6v fan, and all the above components are packed into a 'power-brick' that fits into the payload area of the rover nice and neat. This power-brick now has on/off switches and charging plugs for both batteries, and has been reconfigured since the video was made.

The rover itself is really capable with the ground clearance thanks to in-wheel gear-motors, 6WD and rocker-bogie suspension (as used by all Mars rovers :) ) allowing it to slowly climb over all kinds of obstacles.

That said, there are lots of integrated functions/modules (both code and physical) that had to work together to be able to drive it around like you see in the vid... was enjoyable and challenging!

[stanley]

Cool. I want to see more of that rover ☺️

[Nationalaviationacademy]

Hello.İ highly appreciate you.However ı would like to obtain the sources of this rover.3D model is particularly necessary for me:)

[SpeedDeamon]

Looks hella cool! Would love to see an instructables on it.

[Reysako]

what motors do you use for the wheels? it would really help if you reply!😊😊

[davidturner]

That is awesome, well done. As for me I am still at the making an Arduino powered radar level.

[g.s.]

very nice, I do not get what kind of motors did you use for the wheels. they look small and inside the wheel, right?

[misterhawkey]

Omg. Crazy. Thank for the vidéo. Can you show us the mixage for this? Which tx?

[FumbleBee]

Hi! are you still planning on releasing the documentation on this? It's a very interesting project and i'd like to know more about it internally

[ithaajja]

very very wait for the tutorial to make

[AkshayKumar-psur]

Hi
I wanted to understand the working mechanism used in the bot and also the design.
I am trying to build a rover and needed some help 😐.
Thank you 😊

[stephanelaborde]

Very nice !
Do you share the source code and stl files of parts ?
is it documented somewhere ?
Again, this is a very fine piece of work :-)

[bricomecanique]

Bonjour !
Comment faire fonctionner un servomoteur (SG90) avec le carte Arduino UNO + Manette PS2 sans fil.
Sachant que la manette fonctionne bien avec cette carte !
Merci d’avance !

[hernancurras]

@peter! what happened with your old huge design?

[ericprioul]

Bonjour,
Magnifique projet !
Est il possible d’avoir les plans (structure et électronique), j’anime un club robotique pour ado ?
Merci

[martinromano]

What happened to the mars rover part II?

[mirmigois]

Very nice design and no metal parts needed. Could you upload the stl files somewhere?

[khanbasharat]

Hello sir, I'm making an rover for army as my final year project.

In which i will place a gun on a rover.


For rover i will be using these components:
" Raspberry Pi Zero 2W
Chassis
Couplers
Tyres
Wires
2 x L298 motor controllers
2 x 12V batteries
Raspberry Pi Camera Module
ESP32 CAM module (optional for the second camera)
4 x 6.7 kg-cm DC geared motors
Ultrasonic sensor (HC-SR04)
Servo motor for rotating the toy gun
Toy gun (with rotation capability)
Bluetooth module (e.g., HC-05) or WiFi for remote control "

Haven't worked on these type of projects so will be a new experience

I have few questions like what should be the rpm of motor? Will 300 be good or should i use higher one for speed or lower one for more torque??

Also i don't know how to pull triger? How can i I'm confused.

And please review my components if they are right or not for this project e.g motor controller


Thankyou

[fuatcanerkulac]

Why did you need to write 1200 lines of code?"

[adheesvarana.k]

Mr Peter Ohlmus please share the code and 3d design. You made the best design❤

[manrajsingh]

Can you make a tutorial on it? As i also want to try it in my vacations of class This is really mind blowing btw😃