Wall-e robot with ESP32

Thanks to Chillibasket and all the makers for the great work,

I used the following enhancements from the original one :

• Tensioning system with additional room for bearings by dmdiego
• Improved drive pinion gear by dmdiego
• Tracks with paperclip pins (compatible with TPU) by ZDC
• Improved head & neck, using bolts instead of glue by rene1960
• Replacement for paperclip linkage arms by ZDC (recommended)
• Motorised eyebrows by DaddieMon 
• More realistic hands by Wujek_k
• More accurate recording buttons by Xyphinon
• Integrated hook for a cooler box by milollo
• Improved tracks with tensioning system by Guenter

There are some minor modifications

• magnetic door lock with the magnets inside the sides of the door
• modified arm barrel to be more thight for keeping the arm in place without glue
• new linkages to use screws
• modified pinion geard to fit to the motor
• eye flat cover adapted to lesnses I got from my optician
• adapted the axle to the wheels

I also used a ESP32 board to control the whole robot so there was a need to shrink the code lower the 1Mb

the code is available here

Edit #1 : 12/7/2024 : added reference to tensioning system

Edit #2 : 16/11/2024 : Added support for LittleFS in the code

Edit #3: 26/11/2025 : Added schematic for ESP32 cabling.