L698 Motor COntrol Alternatives?

ggr_scott

USA

Asked Mar 2020

Resolved by Jeremie!

Skip to comments Jump to end

I've used the L698 motor controller with IoTiny for a few projects, but its form factor is a bit big and has a somewhat awkward design.

As I continue to be a beginner, are there alternatives to the hbridge that are compatible with the IoTiny? Perhaps something like an MX1508 http://www.techmonkeybusiness.com/using-the-mx1508-brushed-dc-motor-driver-with-an-arduino.html

Or some other brushed dc controller with a smaller form factor?

Thanks.

Related Hardware EZ-B IoTiny

Upgrade to ARC Pro

Discover the limitless potential of robot programming with Synthiam ARC Pro – where innovation and creativity meet seamlessly.

Compare Pro Features View Subscription Plans

ptp

PRO

USA

#1 Mar 2020

Quote:
I've used the L698 motor controller

I'm not familiar with that model, is a cheap clone ?

Quote:
but its form factor is a bit big and has a somewhat awkward design.

I' would rather focus on the specs versus if is visually apelative or not.

Quote:
As I continue to be a beginner

As beginner you should rely as much as possible on ARC's supported hardware, unless you are familiar with scripting and / or ARC's custom movement control.

You missed the most important detail: the motors specs, if you plan to use one or two motors.

DJ Sures

PRO

Synthiam

#2 Mar 2020

That motor driver would work with the regular HBridge Movement panel. But it will not work with the PWM HBridge Movement panel. This means you will have no speed control. That hbridge does not support speed control. It's either on or off full speed. If you want a smaller hbridge, simply use the internal servo PCB. A servo pcb is ah hbridge.

ptp

PRO

USA

#3 Mar 2020

@DJ, looking to the existent information the IN1 is forward PWM, IN2 is backward PWM. You have speed control, but is not compatible with ARC HBridge control.

ggr_scott

USA

#4 Mar 2020

Thanks for your input fellas.

I do prefer using 360degree servos as motors as they easily work with the movement panel.

However, I was looking at SMARS open robot project (http://www.smarsfan.com/) that uses an Arduino, two 3-6v small motors, motor shield and other electronics. It looked like fun. So, I wanted to use an IoTiny instead, but the Hbridge was too big for the 3d-printed body that it uses. I'm still new to Fusion 360 so modifying the body to accommodate the bigger hbridge form factor isn't in the cards.

I'll stick with servos for now.

Thanks.

DJ Sures

PRO

Synthiam

#5 Mar 2020 — Edited Mar 2020

Yah - servos will be great. But you can also wire the servo PCB to the existing motors and use them as hbridges. Remember, the electronics in a servo is really just an hbridge.

Given the size of the iotiny, i think an lm hbridge would fit next to it. If all else fails, a bit of duct tape never hurts HAHA