Does Buwizz 2.0 provide constant voltage (up to 11V) on voltage supply pins or does it only provide PWMed voltage on C1/C2 only? I own SBricks only, but prior to buying Buwizz to use it also for powering SBrick, I'd like to be sure it is possible. Thanks.

It's on all pins.

Last several months I'm reading lots about BuWizz and I'm more and more tempted to buy 2.0 version + motor (it has better pin holes frame shape than Lego Buggy motor, better torque, speed etc)

On 10/8/2024 at 12:21 PM, legomen said:

Does Buwizz 2.0 provide constant voltage (up to 11V) on voltage supply pins or does it only provide PWMed voltage on C1/C2 only? I own SBricks only, but prior to buying Buwizz to use it also for powering SBrick, I'd like to be sure it is possible. Thanks.

I guess the pin voltages on the Buwizz must be the same as on a Lego reciver, otherwise servo control would not work.

Btw, how are you planning to use a Buwizz to power an Sbrick, and why? The only use case I could imagine is to multiply the number of ports, is that your goal? Otherwise you can just use the Buwizz app to do roughly the same stuff as the SBrick app does. But in case of multiplying ports, an app then would have to connect to both the Buwizz to turn one of its ports on, and then connect to the SBrick to do the actual control. Can BC2 app or something else do that? (I guess neither Buwizz app not Sbrick app can do that).

23 hours ago, 1gor said:

Last several months I'm reading lots about BuWizz and I'm more and more tempted to buy 2.0 version + motor (it has better pin holes frame shape than Lego Buggy motor, better torque, speed etc)

Nice, but how does that relate to the question of the thread? :)

9 minutes ago, gyenesvi said:

I guess the pin voltages on the Buwizz must be the same as on a Lego reciver, otherwise servo control would not work.

 

Nice, but how does that relate to the question of the thread? :)

PF M, L and XL motors use 2 wires on cable to work (and have bending issues...) and I was also wondering wether BuWizz motor uses 2 or 4 wires on cable...

24 minutes ago, 1gor said:

PF M, L and XL motors use 2 wires on cable to work (and have bending issues...) and I was also wondering wether BuWizz motor uses 2 or 4 wires on cable...

It has to, since PF Servo is powered by the outer cables.

15 minutes ago, Zerobricks said:

It has to, since PF Servo is powered by the outer cables.

You're talking about the Buwizz unit, right, not the Buwizz motor? Because the servo has nothing to do with the cables on the Buwizz motor I guess?

40 minutes ago, 1gor said:

PF M, L and XL motors use 2 wires on cable to work (and have bending issues...) and I was also wondering wether BuWizz motor uses 2 or 4 wires on cable...

The Buwizz motor has still 4 wires, but I guess it also only uses 2 of them, so same as all other drive motors.

21 minutes ago, Zerobricks said:

It has to, since PF Servo is powered by the outer cables.

I see...

19 hours ago, gyenesvi said:

I guess the pin voltages on the Buwizz must be the same as on a Lego reciver, otherwise servo control would not work.

Btw, how are you planning to use a Buwizz to power an Sbrick, and why? The only use case I could imagine is to multiply the number of ports, is that your goal? Otherwise you can just use the Buwizz app to do roughly the same stuff as the SBrick app does. But in case of multiplying ports, an app then would have to connect to both the Buwizz to turn one of its ports on, and then connect to the SBrick to do the actual control. Can BC2 app or something else do that? (I guess neither Buwizz app not Sbrick app can do that).

I was also thinking that, but needed to be sure:) Yes, I would like to buy 1 Buwizz as a battery and use additional SBrick to have all 7 ports available. I actually need 6 ports for Greyhound. Would one Buwizz be enough? Originally Greyhound is using two of them, one for two L motors.

4 hours ago, legomen said:

I was also thinking that, but needed to be sure:) Yes, I would like to buy 1 Buwizz as a battery and use additional SBrick to have all 7 ports available. I actually need 6 ports for Greyhound. Would one Buwizz be enough? Originally Greyhound is using two of them, one for two L motors.

I see. But I believe the reason that two Buwizz units are used in Greyhound is not just to have enough ports for all the motors (you could simply stack two motors on one port since the 4 drive motors are controlled simultaneously, and then one Buwizz unit without Sbrick would be enough), but rather because one battery may not be powerful enough to drive them all. Too many motors might overpower and shut down the battery, though L motors may not draw that much power, depends on many factors like weight and gearing. So not sure about that, but you could give it a try, as I said, you can do it without Sbrick as well, and if not enough buy another Buwizz.

Another option could be to use a Buwizz 3, the 4L motors connected to the 2 PF ports, and replace the steering servo with PU L motor driven from a PU port. What is the 6th port needed for? Lights? You could use PU lights as well, you'd have 3 more PU ports available.

Edited October 10, 2024Oct 10 by gyenesvi

7 minutes ago, gyenesvi said:

Another option could be to use a Buwizz 3, the 4L motors connected to the 2 PF ports, and replace the steering servo with PU L motor driven from a PU port. What is the 6th port needed for? Lights? You could use PU lights as well, you'd have 3 more PU ports available.

About this- the sixth port is used for an m motor which drives the fake engine. but you can easily replace it with a powered up version or use an adaptor cable.

As for 2 buwizz 2s or 1, if you read the Greyhound WIP topic you can see that RacingBrick did some tests for didumos which showed that 4 L motors on 2 buwizz 2's was the most effective way to power it.

I think you should go with a buwizz 3, as it'll be more versatile for future builds.