40in1 Robotics Kit (TinkL Sensors Kit) Quick overview video Troubleshooting Videos - Circuit connections for LED based activities Activity 1: Touch Light Activity 4: Flashing Danger Light Activity 10: Magic Light A13: Magic Light (Reverse Logic) Updated LED circuit connections Instruction Videos Making a Stand Touch Light Touch Horn Touch Laser Pointer Flashing Danger Light Fan Clockwise Rotation Fan Anti-clockwise rotation Door Bell Presentation Pointer Instruction Manual - Step-by-step instructions on how to make.