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Berkeley Humanoid Lite vs ToddlerBot 2.0

Cost, parts and difficulty side by side.

Berkeley Humanoid LiteToddlerBot 2.0
Cost$4,300 to $4,800$5,730 to $7,760
Difficultyadvancedadvanced
Parts2336
3D printingyesyes
Kits available01
Made byUC Berkeley Hybrid RoboticsStanford (Haochen Shi and the TML lab)
Full listBerkeley Humanoid Lite parts listToddlerBot 2.0 parts list

Berkeley Humanoid Lite

Child-sized research humanoid with 22 printed cycloidal-gear actuators driven by drone motors, aimed at learned walking for under $5,000.

ToddlerBot 2.0

Research humanoid about toddler size, built from Dynamixel servos and printed parts, with full RL and teleoperation software.

The short answer

Berkeley Humanoid Lite costs less to start: about $4,300 against $5,730 in parts. Berkeley Humanoid Lite has the shorter parts list (23 lines against 36). Both are rated advanced. Berkeley Humanoid Lite: Discontinued part: the MAD 5010 110KV motor is no longer made. The team says 140KV or higher works but runs hotter; price a substitute before ordering.

Motors and servos

Berkeley Humanoid Lite

  • 10 x MAD Components M6C12 EEE 150KV brushless motor
  • 12 x MAD Components 5010 EEE 110KV brushless motor
  • 22 x STMicroelectronics B-G431B-ESC1 discovery kit
  • 286 x MR106-2RS bearing (6x10x3 mm)
  • 44 x 6701-2RS bearing (12x18x4 mm)
  • 20 x 6811ZZ bearing (55x72x9 mm)
  • 24 x 6809ZZ bearing (45x58x7 mm)
  • 260 x M3 socket screws: 55 mm, 30 mm and 25 mm
  • 2 x LewanSoul / Hiwonder BigClaw servo gripper

ToddlerBot 2.0

  • 2 x DYNAMIXEL 2XC430-W250-T
  • 6 x DYNAMIXEL 2XL430-W250-T
  • 4 x DYNAMIXEL XM430-W210-T
  • 1 x DYNAMIXEL XM430-W350-T
  • 10 x DYNAMIXEL HN11-I101 set
  • 4 x DYNAMIXEL HN12-I101 set