MisterCreators Custom MOCs

Hello technic friends, I have some interesting new information about the RC Box. After I tested some different electronic speed controllers, I was able to get proportional servo control to work properly. So There will be an improved or fully working Version of the 10 Ch RC Box very soon, As well as the versions with different channel amounts.

I've now hooked up my multimeter to the Buwizz ports and as I already expected, the Buwizz does not output an PWM Signal, it outputs proportional voltage. That means: to get the servo turning just a little bit you need 1,6V from C1 to C2. The more voltage there is between C1 and C2 the more the servo will turn. As the PWM Signal always provides full voltage, the servo will always turn 100%. I hope this is understandable for everyone and clarifies any open questions.

I now tested everything again and built a small testing rig, to make sure that it's nothing wrong with my RC Box. But same as before, the servo still only turns all the way to the left or to the right, no proportional steering possible. I used an 2S lipo to make sure that I'm not overvolting my servo.

It was a original LEGO Servo which was tested on Buwizz to work properly.

My servo outpouts are fully wired up, so they do have 0V, 9V, C1 and C2 thats why they are not labeled as a dual channel. But even with that, I had no luck getting the servo to turn proportionally, no matter how less PWM I applied it always went 100% left or right, that's why I thought that they might need proportional voltage input and not PWM input. So I was able to turn the servo and the connections were ok, but the servo was not able to decode the signal correct for proportional turning. I will try some more things this weekend

Yes, same cable PF is using, Well thank you very much for that, then I have to take a closer look into my servo control

I went with the same ribbon cable that is used in the motors and extensions.

Yes I did, but the servos don't understand the PWM signal the ESCs put out. So for now servos can not be controlled proportional, but they can be controlled left or right (-90°, 0°, 90° only these 3 positions and nothing in between)

These are ESCs with PWM output, and they are dual ones. Thank you very much :) The ones in the middle are wired up normally for Servo support, but while testing I discovered that LEGO servos don't take a PWM signal, so there is no promotional control yet. You can only steer fully or not, but I'm already trying to find a solution for that.

Yes the remote is quite expensive, but there will be ways to use other remotes. For now you also could get an opentx remote and an AFHDS3 module and it should work fine together- Not quite sure about that but probably somewhere around 200-300€ depending on the number of channels (no guarantee for that at this time XD) Can confirm it's so high because i needed space for all the components. At first there is the receiver, then there are 10 motor controllers that output the different PWM Signals, then there is telemetry to transmit the battery voltage to the remote and there are wires in there. And they are not small. A peak current of 50A must be able to flow and need to be turned of and on. And 50A cannot be switched via the small switch, so a corresponding transistor is installed which is controlled via the switch. I still hope that i can reduce the height 1 Stud, but I'm not sure about that at the moment. Also, I'm not ready to present the internals, since there are wires everywhere and it does not look good XD

That is right, but you can get the Paladin in the Basic variant for €250. Otherwise you can get an AFHDS3 Extension Module which should work with every remote that has an extension slot for about €100 I've looked into this, and it will be possible to support the AFHDS2A as well. But maybe we should continue the conversation at the RC Box thread

I'm very sorry for that and didn't mean to do that. I thought that these topics are very related, and so I just posted here. But now I created my own thread about the RC Box :)

Hello technic community, I want to share some of my thoughts and my progress designing my RC Box. I'm recently working on something very similar to @NoEXIST The concept is an RC box with (up to) 16 channels. The receiver, associated telemetry and the power functions outputs are integrated in the box, while a battery must be connected externally in the form of a 2-3S lipo. As a proof of concept, I am currently working on a 10 channel version, which has 2 full size ports for servos and motors and 8 dual channel ports for motors only (Size: 4x9x5 Studs). The Dual Channel configuration allows to control two motors separately over one PowerFunctions Connector. Goal of this project is being used for complex models with many motors and functions (therefore up to 16 channels) while using an RC-grade remote (long range, fast response time) and a strong lipo to get longer running times. My current high-end model (Pistenbully 600W Polar) has 14 Motors and requires 3 Buwizz 2.0 Units to work. Even with them, the runtime in snow is only about 10 minutes. When using an 3S Lipo I would be able to get even better performance out of the motors as well as a longer runtime (if the lipo capacity is bigger). This is the first Dual Channel test i've done: After two months of work, I now can proudly present my first handmade prototype of my 10 channel RC Box. There is very much work to be done, I have to change my connectors for better contact and for tighter fit. Also, I have to look for another way to address lego servos for proportional control since they don't use PWM. But have a look by your self: Feedback and thoughts are appreciated :) Best regards Adrian

Thank You :) Remote is an FlySky PL18 Paladin EV featuring up to 18 channels with telemetry using the AFHDS3 protocol. The receiver is a corresponding FlySky Receiver. Currently, all AFHDS3 Remotes are compatible and for other remotes you can get a AFHDS3 extension module for about 100€, then opentx remotes and every remote that has an extension port will work.

After two months of work, I now can proudly present my first handmade prototype of my 10 channel RC Box. There is very much work to be done, I have to change my connectors for better contact and for tighter fit. Also, I have to look for another way to address lego servos for proportional control since they don't use PWM. But have a look by your self: Feedback is appreciated :)