A toy block with slot tracks formed thereon takes the form of a hexahedron with six track surfaces. A slot is formed on each of at least one of the track surfaces and has multiple connection ends extending and connecting to different edges of the track surface. Each toy block can at most include six different slots to attain high degree of diversity and variety for playing the toy block. When multiple ones of the toy blocks are assembled, users just need to get the multiple toy blocks to approach each other and the multiple toy blocks can be quickly assembled into a toy block set with high degree of variation and entertaining effect.

A toy block with slot tracks formed thereon takes the form of a hexahedron with six track surfaces. A slot is formed on each of at least one of the track surfaces and has multiple connection ends extending and connecting to different edges of the track surface. Each toy block can at most include six different slots to attain high degree of diversity and variety for playing the toy block. When multiple ones of the toy blocks are assembled, users just need to get the multiple toy blocks to approach each other and the multiple toy blocks can be quickly assembled into a toy block set with high degree of variation and entertaining effect.

A multi-function modular robot apparatus provides a wide range of entertainment and functional use options that may be tailored by a user to the specific entertainment and functional purposes so desired. The specific entertainment and functional purposes of the multi-function modular robot apparatus are obtained through inclusion of multiple stackable modules. The interlocking mechanical and electric communications connections for each stackable module act as a power and electronic communication pass through to allow for each module to be arranged in any order and in any combination while still maintaining power and function.

A multi-function modular robot apparatus provides a wide range of entertainment and functional use options that may be tailored by a user to the specific entertainment and functional purposes so desired. The specific entertainment and functional purposes of the multi-function modular robot apparatus are obtained through inclusion of multiple stackable modules. The interlocking mechanical and electric communications connections for each stackable module act as a power and electronic communication pass through to allow for each module to be arranged in any order and in any combination while still maintaining power and function.

A wheel assembly for use on a toy car includes a roller defining an axis of rotation, a wheel portion connected to the roller. The periphery of the wheel portion an at least partially sticky surface, which includes a blank portion without a tendency to stick.

A wheel assembly for use on a toy car includes a roller defining an axis of rotation, a wheel portion connected to the roller. The periphery of the wheel portion an at least partially sticky surface, which includes a blank portion without a tendency to stick.

A modular toy system comprising a plurality of separate electronic toy modules, each electronic toy module comprising a function device operable to perform a user-perceptible function and a control circuit for controlling the function device; wherein at least a first electronic toy module of the plurality of electronic toy modules comprises a first control circuit, a first function device and a sensor system configured for contactless detection of respective coordinate values of at least two coordinates, each coordinate being indicative of a position or an orientation of at least a second electronic toy module of the plurality of electronic toy modules relative to the first electronic toy module; and wherein the first control circuit is configured to control operation of the first function device based on one or more of the detected coordinate values.

A radio-controlled (RC) motorcycle is disclosed with a chassis, a rear wheel, and a steerable front wheel assembly. The motorcycle includes an attitude estimator that uses rotation and acceleration data from an IMU to estimate an inertial attitude of the motorcycle. A receiver is connected to a control processor and receives a steering input from an RC transmitter. The control processor determines a desired roll angle based at least in part on the steering input from the receiver; determines a reported roll angle from the attitude estimate; and controls a steering angle of the front wheel assembly to reduce the difference (or reduce error) between the desired roll angle and the reported roll angle.

A radio-controlled (RC) motorcycle is disclosed with a chassis, a rear wheel, and a steerable front wheel assembly. The motorcycle includes an attitude estimator that uses rotation and acceleration data from an IMU to estimate an inertial attitude of the motorcycle. A receiver is connected to a control processor and receives a steering input from an RC transmitter. The control processor determines a desired roll angle based at least in part on the steering input from the receiver; determines a reported roll angle from the attitude estimate; and controls a steering angle of the front wheel assembly to reduce the difference (or reduce error) between the desired roll angle and the reported roll angle.

Provided is an educational toy that enables even an infant of low age to easily play with interest. One or a plurality of command panels 121 are arranged to form a moving path 120, the command panels 121 including command information readable by a reading module. The movable robot 110 sequentially reads, using the reading module, the command information included in the command panel 121 over which the movable robot 110 passes, while moving on the moving path 120, and sequentially performs an action corresponding to the read command information. The actions performed by the movable robot 110 include at least any one of starting a movement, stopping the movement, rotating, changing a moving direction to a predetermined direction, flashing a light emitting portion of the movable object in a predetermined color, and replaying sound.