Mecanum Wheel Robot

Community Project Proposal
#1

Hi,
I’m going to build a robot based on the Mecanum wheel chassis from the store. Could you point to any plans and/or products that I would need next to the chassis? I’m inclined to slowly build it out - first, make sure it runs using a Seeduino board and some motor shields (any recommendations) and a remote (again looking for recommendations) and then slowly add more features using pi, camera, ultrasonic to add obstacle avoidance, line-following, etc.

Also looking for recommendations regarding the type of battery to use with the chassis.

Thanks,
Thijs

#2

which motor you are planning to using?

#3

The motors that came with the chassis are labeled GA25-371 and have encoders. 1:34 gear ratio and 360cpr.
Thanks.

#4

What about the voltage and current requirements? Then we can select the suitable motor drivers

#5

It’s this one:
https://www.seeedstudio.com/JGA25-371-Geared-Motor-with-Encoder-p-4125.html

With these specs:
image

#6

Since the Maximum Voltage Ampere rating is 12v/2.2A, you can go with L298 based motor drivers which can handle power supply: +5V~+46V and Driver up to 2A.

You can see the Motor driver comparison below

Product DC voltage input Channel No MAX Current output for each channel Price
Grove - I2C Motor Driver (TB6612FNG) 2.5 ~ 13.5 (5V Typical, 15V Max.) 2 1.2 A(ave)/3.2 A (peak) $6.5
L298 Dual H-Bridge Motor Driver +5V~+46V 2 2A $23.5
Grove - I2C Mini Motor Driver 2.75V - 6.8V 2 1A $10.9
Grove - I2C Motor Driver with L298 6V - 15V 2 0.5A $16.9
Grove - I2C Motor Driver (L298P) 6V - 15V 2 1A $12.9