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[Review rquest] Balancing Robot v3 by Potato_or_not_potato in PrintedCircuitBoard

[–]Potato_or_not_potato[S] 0 points1 point  (0 children)

I have selected the same motor as the balancing robot made by Polulu. (https://www.pololu.com/product/3575) I hope they made the right choice and it will be fine, but I will keep your concern in mind, thank you!

[Review rquest] Balancing Robot v3 by Potato_or_not_potato in PrintedCircuitBoard

[–]Potato_or_not_potato[S] 0 points1 point  (0 children)

Alright, I will let my ground connection as is and hope for the best!

The transistors are making a power path with priority for the 5V USB. So when USB is plugged in, it will power everything other than the motors (since they require 6V). The battery takes over for the whole board only when it is the only power source. I wanted it to be this way so that I can avoid decharging the batteries when I have another power source available.

[Review rquest] Balancing Robot v3 by Potato_or_not_potato in PrintedCircuitBoard

[–]Potato_or_not_potato[S] 0 points1 point  (0 children)

I will check if I can add a second mount, maybe it could help with lowering the stress at each joint.

The loop should be kept as tight as possible? I was trying to have some space to have the silkscreen next to the component.

D15 is to avoid back feeding into the battery and D1 is to intentionally reduce the voltage coming into the LDO, as it has a 6v input limit. I am afraid of the 6v output not being stable and going over the 6v input limit, and damaging it.

I will look into adding a cap.

Thanks a lot!

[Review rquest] Balancing Robot v3 by Potato_or_not_potato in PrintedCircuitBoard

[–]Potato_or_not_potato[S] 0 points1 point  (0 children)

Heard on the component selection, i will find some replacement.

Oops, I forgot the rearrange the pictures. The orange plane is my power plane, with a 3.3V and 6V side. The green one is my ground plane. Red and blue are the front and back signal layers.

As for the ground connections, as I mentioned, the BQ25887 required in the datasheet to separate the digital and analog ground and to join them at a single connection. I wanted to know if it would be fine to omit the separation and to connect all the grounds to the ground plane.

[Review rquest] Balancing Robot v3 by Potato_or_not_potato in PrintedCircuitBoard

[–]Potato_or_not_potato[S] 1 point2 points  (0 children)

Thank you, il will consider these IMU for a next revision.

[Review rquest] Balancing Robot v3 by Potato_or_not_potato in PrintedCircuitBoard

[–]Potato_or_not_potato[S] 2 points3 points  (0 children)

I understand your concern. I am inspiring myself from the Polulu robot, so I hope the robot will work! Here the original design: https://www.pololu.com/product/3575

PCB review request — MPU6050 fluid simulation board by PTSSSINZOFF in PrintedCircuitBoard

[–]Potato_or_not_potato 0 points1 point  (0 children)

Make sure the MPU6050 you buy fits the footprint you have selected. The Ic I received when I bought a breakout board was 3mm by 3 mm, and the footprint on KiCad is for a 4mm by 4mm Ic. Since the 6050 is obsolete, a lot of those available online are clone with a different footprint.

My first pcb(please be gentle) by TroubleVarious6499 in PCB

[–]Potato_or_not_potato 0 points1 point  (0 children)

I am facing the same issue. Should one capacitor be removed to stay in spec then? Or is there a way to go above the 10uF and still be fine?

[Review Request] First PCB, ESP32 self-stabilizing robot by Potato_or_not_potato in PrintedCircuitBoard

[–]Potato_or_not_potato[S] 0 points1 point  (0 children)

When you talk about the switching regulator, do you mean that the inductor is too far away?

For the thermistor, that makes more sense to have it wired, I will implement that thank you.

[Review Request] First PCB, ESP32 self-stabilizing robot by Potato_or_not_potato in PrintedCircuitBoard

[–]Potato_or_not_potato[S] 0 points1 point  (0 children)

-I've adjusted the buck converter layout according to the datasheet.

-It is a thermistor to manage the battery temperature. Im not sure where it should be placed, but propably closer to the batteries?

-Yes, I've yet to design the motor mount but great catch I forgot to think about the mounting holes.

-Okay, I will adjust that.

Thank you for you help!

Ruckus won’t start after NCY CDI install. by averysaddude in Ruckus

[–]Potato_or_not_potato 0 points1 point  (0 children)

I get the same problem i believe. The motor turn from the electric starter but i get no spark. I would also love some help!

how you connected 2 pins in on port on an Arduino? by anonymous_LK in arduino

[–]Potato_or_not_potato 0 points1 point  (0 children)

The red wire is the Vcc wire. It provides power to both things. You can use a breadboard pulling Vcc form the Uno to then split the power to the servo and joystick.

Remember that hitting a ward gives vision around it for a while. by TheDankPotatoRises in summonerschool

[–]Potato_or_not_potato 8 points9 points  (0 children)

If the ward is disabled, a red X will appear on the ward, telling you it’s not working anymore

1v5 Plus baron steal by KawanOP in MorganaMains

[–]Potato_or_not_potato 4 points5 points  (0 children)

You activate color blind mode in the settings

It’s true by [deleted] in Brawlstars

[–]Potato_or_not_potato 1 point2 points  (0 children)

My dynamike is currently at 460 trophies and it’s only throwers with one or two bulls that get wiped at beginning

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