Hi All, Again about Mahowik BalancingWii (MBW). As usual, I build the MBW with NRF24L01 and it goes successful, stable and I can control it to go forward and backward, to the right, left, turn around and of course stop 
But, I want to activate the feature of Mahowik BalancingWii (ver 1.0) that when the robot falls down, it can rise and stand again.
In this case, I place the MPU6050 on the first flat And I use AUX2 (LOW is enabled) to switch the RISING features.
BUT, It can not stand alone when I switch the AUX2 and the robot just backward and short forward and it is just about 3 degrees above the floor. It looks it tries to stand up but it failed.
By the way, does robot's weight cause it? Should I use barometer module (like I use in my micro arduino quadcopter) ? - I use 12v 2 Ampere (Charger) to power the robot for both DRV8255 Circuit and Arduino Uno. I use toggle switch to activate the rising feature or should I changed it using potentiometer? I use metal stepper motor's bracket, PVC 4mm (thickness) for frame.
Here's Mahowik's Video Demo.
Maybe it looks like what it is. Are you sure the motos can produce enough torque to stand up the robot?
You've linked three hours of Sponge Bob Square Pants. I'm a fan, but I'm not scrubbing through the entire thing to find anything on point. 
a7
So sorry to provide wrong link 
(I didnt mean it, really and I love watching spongebob squarepants everyday.) - I already fixed the link!
Yes, I also thought that it is a matter of torque - and I'm sure that nema 17 stepper motor has enough torque to lift itself to stand. By the way, I also watch another tutorial/demo video related to MAHOWIK's balancingWii (without that rise feature. Some show rise feature using servo and esp32 board - but NOT like what Mahowik did !!! I NEVER FIND A SINGLE VIDEO DEMO LIKE HIM!
Basically, I know that one of the small key of balancing robot is that the weight must be in the bottom of the flat, not too tall and between second flat (and the third flat, if exists) must be less heavy of the bottom flat.
I'm not sure why you are sure, but I am sure I can't help.
But i am curious:
If you have the robot in a horizontal position, and hold the wheels one with each hand, can the motos lift it to vertical?
Did every case of rising H -> V in the video involve scooting one way and then rapidly reversing direction?
Also, I see in the video a diversity RX on board, if you orient those antennae at right angles you will improve range. But you prolly won't be letting this thing get 100 meters away, so.
You may want to add analog video to the robot. It's easy, relatively inexpensive and something I dismissed for years as entirely crummy. It is surprising how well it can work, and how uncrummy it can seem to be when having so much fun.
Lastly I see in the video a Lipo monitor. If you don't have one, I recommend it highly both for on-board independent monitoring and as a good thing to have
You can spend less for one… a cheap one a friend gave me reads 0.1 volts low on cell 1 and 0.1 volts high on cell 3… IDK if spending more helps, but my Venom is spot on, and 0.2 volts in flying things is a big deal. Maybe not so much with this robot, but you should take good care of the batts. Between the cost and the potential for a certain kind of excitement you don't wanna be there to see, it's worth the thinking, You may know all about this. Read up on the exact chemistry you are using:
a7
I've tested the range for NRF24L01 (RX = standard, TX = NRF24L01 Pa/LNA) can reach 300 meters.
Now, I'm re-building the frame. I ignored the messy cables and jumper and focus on reducing the weight and the height. (Processing .....)
After re-building the frame, finally, my robot can stand alone using AUX2.
Nema 17 stepper motor actually has enough torque to support RISE-MODE of Mahowik BalancingWii ver1.0 and I rebuilt the frame, without metal bracket, replace the PVC with Acrilic.
Here's the demo link.
The concept of frame is that the weight is centered in the bottom flat. I use Acrilic for the frame to make it light. But in the future, I will find another light frame, shaped based on my need.
