What is the black circle in the middle? This is the small board on the bug car that the baby rides. The board is the part that stabilizes the voltage and controls the music and lights. Normally, you p
At present, in order to attract a large number of knowledgeable people to settle in Ordos for development, Ordos has given strong policy support. Now we sincerely recruit college students with entrepr
I received the board, but encountered a problem: I followed the instructions and the APP could not find the board at the step of " Firmware update and then connect " ! The firmware update was shown to