SuperDroid

Hello,

When converting RS232 to TTL you have to set the RoboteQ to use inverted serial logic. Please refer to pages 178 and 179 of the RoboteQ user manual.

I would try powering the robot’s Arduino with 5 Volts through the SL header. We have had power issues with the Arduino’s 12v to 5V regulator before. As for the base moving on its own, can you counter this movement with the joysticks? I’m wondering if the joystick potentiometer is off center. If so, there is a slot on the bottom side of the…[Read more]

Hey Zack,

How is the Arduino being powered in the robot? It seems supplying power to the Arduino through the USB cable is correcting the problem.

Likely 2. ignition and starter. without taking apart and troubleshooting the system, we can not answer with any certainty.

Hi. You an use remote control (RC) relays. We use the battle switch https://www.superdroidrobots.com/electrical-parts/Remote-Control/RC-Switches/product=827. You will have to put on the ignition and another on the starter. This is something you have to be very careful with and make sure your fail safes are working properly, etc. so all bad…[Read more]

If the motor is spinning at 120RPM with 24V, changing motor controllers is not going to make it run faster… It sounds like you need to change your gear reduction. The motor is a 10 tooth; what is wheel sprocket size? The bigger that is the more reduction you will have (more torque, less speed). If that is a 40 tooth sprocket, you have a 1:4…[Read more]

Hi. If B+ and B- are shorted, the sabertooth needs to be returned to Dimension Engineering for repair. Sorry

Hey there Steve!

Welcome to the world of robotics, you’ve chosen a great time to get into this! Having hauled beach wagons I can sympathize, it’s definitely a drag. I’m going to try to go through your list of specifications and see if we can provide some advice.

We have a support wiki that has a section on building robots. It offers some infor…[Read more]

Hi Samuel,
Sorry but we order the wheelchair motors already assembled and do not carry individual parts. Unfortunately if the part cannot be repaired you would need to order a new motor.

Hi Peter. Nice mower! It looks like its done well for you. The 2WD design does have its limitations. For hills a 4WD is the way to go. Here is a prototype 4WD that we built recently that is cutting on slopes up to 38 degrees.

As for being able to cut close to a fence, there are some tradeoffs to…[Read more]

I’m not familiar with this pipeline for controlling robot arms but it sounds like you can use grbl regardless since you’re on Arduino and you need to generate a pulsetrain for the stepper motors. I haven’t worked with Universal G Code Sender either but I think you’re right that this will be too restrictive for what you’re trying to do. The first…[Read more]

Yes, those motors can definitely be mounted horizontally as well. If you look at an electric wheelchair, that’s actually how they are mounted.

You can get chains to put the on the wheels. Converting to tracks would be a very difficult task… We have used chains before and it works well.

That code is written for our PWM Motor Controllers, which take a PWM signal input. Take a look at the RC_Mecanum_Sabertooth sketch for the Sabertooth implementation.