The BrainCo Revo 3 U21 for H2 EDU PLUS is a robotic hand with 21 active degrees of freedom, all fully direct-drive and back-drivable. Each of the four fingers has 4 degrees of freedom, while the thumb has 5. Active grip force is 70 N, with a fingertip pinch force of 20 N and a grasping diameter range of 10–150 mm.
This version has no tactile sensing and includes a SenYun SHF3L wrist camera. The camera offers a 196° horizontal field of view and captures 1920 × 1536-pixel images at 30 frames per second. It is compatible with NVIDIA Jetson AGX Thor.
The BrainCo Revo 3 U21 combines 21 active degrees of freedom with fully direct-drive, back-drivable joints. The hand measures 215 × 105 × 50 mm and offers repeatability of 0.1°, with a joint movement frequency of 3 Hz. All five fingers can touch the palm.
The specified payload is 20 kg for the whole hand and 5 kg for the four fingers. The included SenYun SHF3L wrist camera weighs less than 50 g and features a built-in image signal processor. It delivers YUV422 output at 8 bits, with a rolling shutter and a 196° horizontal field of view.
