Introduction: Raspberry Pi Pico Open Remote Control Walking Robot "EasyPico"

About: I am a IT network engineer in Japan. I make robots as a hobby.

I tried to make a robot that everyone can enjoy.

3D Data, How to Make, and Code are open to the public.

You can put it together with parts that cost around 7000 Japanese yen (70 US dollars at ¥100/$, excluding PLA filament).


The power supply is designed to be safe with AAA batteries. 

For example, how about as a material for STEM/STEAM education?

Or simply enjoy 😊



Concept is Easy


- Easy to gather parts.

- Easy to 3D print.

- Easy to assemble.

- Easy to program.


You can check the whole 3D preview by 3mf file.


Supplies

Simple Parts


Basic Parts

- (x1) Raspberry Pi Pico W (Wifi, with pin header)

- (x1) Kitronik Simply Servos Board for Raspberry Pi Pico 5339

- (x8) Servo (TowerPro SG90 or Miuzei MS18 or Feetech FS90)

- (x4) AAA Rechargeable Batteries 1.2V or alkaline 1.5V

- (x1) AAAx4 Battery Case

- (x4) M2x8mm Machine Screws with Countersunk Head

- (x80) M2x4mm Tapping screws


For head LED (not required if you don't need LED)

- (x2) 3mm LED (built-in resistor type or regular with resistor)

- (x3) Jumper Wires (female to female) about 10cm

- (x3) Right angle pin header  



About Kitronik Servo Board 5339
There are in two version.
Current Version (2023/11) 
 You need USB Connection for moving Robot. Though it is not remote control, it works.
Next Version (It will be release 2024/1)
  Perfect remote control possible. You don't need USB Connection. 
  Kitronik sent me a new version board ahead of time, and I confirmed that it works without USB connection.


Refer to 'Example_Parts_Tool_List.pdf' for the Parts link and more information.

Step 1: Tools

Refer to 'How To Make_EasyPico.pdf' for optional tools and complete instructions.

Step 2: Print

Only 4 STL files required


- Head & Body

- Arm x2 (left and right are the same)

- Legs

- Covers


Individual Parts

If you have a small 3D printer or prefer to print each part separately, I also offer separate STL files available.

-Individual_Parts.zip (28 files)


Example PLA Setting

  •  Layer height - 0.2mm
  •  Infill - 20%
  •  No generate support


Gcode print files also available. You can check the approximate print time and amount of PLA required.

Step 3: Head

Step 4: Body

4-5. Temporary Assemble for servo position2

SamplePythonCode.zip

Step 5: Arms

Step 6: Legs

Step 7: Combine

Step 8: Covers

Step 9: Motions

Step 10: Next Step

Share your code


Sample Code is only walking forward and exercise.

I am happy if you share your code to public.

Turn right, left and backward movement is attractive.



Thank you for

- idea of motion. PLEN:bit and OTTODIY.

- share of base remote control code. Michael.

- quick and sincere response. KITRONIK Support.

Robotics Contest

Runner Up in the
Robotics Contest