Search found 1543 matches

by Basicmicro Support
Wed Jun 02, 2021 11:44 am
Forum: General Discussion
Topic: Custom firmware for Roboclaw
Replies: 1
Views: 215

Re: Custom firmware for Roboclaw

You can not.
by Basicmicro Support
Wed Jun 02, 2021 11:44 am
Forum: General Discussion
Topic: Wire Lengths?
Replies: 1
Views: 119

Re: Wire Lengths?

The datasheet it being very conservative. Power wires should be kept as short as possible. Use larger gauge wire than you think you need. The longer the wire the larger the wire gauge should be. 3 feet of wire and the power wire being at least the same gauge as the motor wire is ok. Using large leng...
by Basicmicro Support
Wed Jun 02, 2021 11:39 am
Forum: General Discussion
Topic: Firmware Update, no mode button?
Replies: 1
Views: 117

Re: Firmware Update, no mode button?

Just click Update firmware. There is no mode button on some models of Roboclaw. The mode button to force bootloader mode is not required. Motion Studio will send a command to tell the unit to go into bootloader mode.
by Basicmicro Support
Wed Jun 02, 2021 11:37 am
Forum: Velocity and Position Control
Topic: Motor Controller doesn't output 100% duty
Replies: 1
Views: 199

Re: Motor Controller doesn't output 100% duty

Most mosfet drivers use a boost capacitor to generate the high side gate voltage. This requires recharging the cap which requires turning off the high side for a short period of time. This limits the on-time to around 98%.
by Basicmicro Support
Wed Jun 02, 2021 11:34 am
Forum: General Discussion
Topic: burnt Roboclaw 2x7A repairs
Replies: 2
Views: 361

Re: burnt Roboclaw 2x7A repairs

The controller is not designed to survive reverse power. It will have instantly damaged the mosfet drivers.

If you still want to try, they are as you determined, 2512 10mOhm. They need to be a minimum of 2watt.

The a4940K chips are almost certainly dead as well.
by Basicmicro Support
Wed May 19, 2021 2:11 pm
Forum: Velocity and Position Control
Topic: Using 3 roboclaw, packet serial, USB
Replies: 30
Views: 12844

Re: Using 3 roboclaw, packet serial, USB

1. No, there is no speed limit adjustment in the Roboclaw.
2. Logic battery is optional. When not used, the main battery will power logic. The main purpose of the logic battery is to eliminate brownouts due to the main battery being pulled too low by the motors.
by Basicmicro Support
Wed May 19, 2021 2:09 pm
Forum: General Discussion
Topic: Rover skid steer
Replies: 1
Views: 334

Re: Rover skid steer

Roboclaw does not have any trim functions. With RC mode it is assumed you are using a RC radio which all have trim.

You will need to adjust your RC pulse output in your arduino code. Alternative, we recommned using packet serial commands with arduino and add offsets to the commands as appropriate.
by Basicmicro Support
Wed May 19, 2021 2:05 pm
Forum: General Discussion
Topic: Mixed mode RC
Replies: 1
Views: 342

Re: Mixed mode RC

You need to adjust it in your arduino code(left/right value). The Roboclaw does not have any trim functions. Normally RC mode is used with RC radios which have built in trim already.

If you are using an arduino we recommend using packet serial, not RC.
by Basicmicro Support
Wed May 19, 2021 2:04 pm
Forum: General Discussion
Topic: Roboclaw 2x7A M1 Driver Failure
Replies: 2
Views: 1038

Re: Roboclaw 2x7A M1 Driver Failure

If the motor can't move in one direction(eg when directly wired to a battery) that indicates a broken or shorted connection. If it is a broken connection it would not damage the Roboclaw. If it was shorted it would kill it instantly. Roboclaw can NOT protect against a dead short. It requires a minim...
by Basicmicro Support
Wed May 19, 2021 1:59 pm
Forum: General Discussion
Topic: Packet Serial Mode Latency Issues
Replies: 2
Views: 490

Re: Packet Serial Mode Latency Issues

You need to determine if you are getting failed packets. If a packet fails it takes a minimum of 10ms to clear. The Roboclaw python library is setup to retry several times so failed packets add up to significant delays. Note: they are not the problem. They are a symptom of a problem. If bad packets ...