As shown in the figure, the 315MHZ four-button remote control made up of SC2262 is used. The four buttons A, B, C and D on the remote control are defined as A (top), B (bottom) and C (stop). , D (mode selection). The control part is composed of a receiving circuit, a decoding circuit, a 5V power supply circuit, a single chip system, a driving circuit, and a 220V power input terminal and an output terminal of the control motor. The receiving and decoding circuit is composed of a 315 MHz receiving module and an SC2272M4, and the decoded signal is output by D0, D1, D2, D3 of the SC2272M4. The host 5V power supply is plugged into J1 by the 8--12V power adapter, and then regulated by D1 rectifier U1, C1, C2, C3 filter to get 5 volt DC power. The MCU system consists of AT89C2051 and button system (S1-up, S2-down, S3-stop, S4-up, S5-down). S1, S2, and S3 respectively correspond to the three remote control buttons A, B, and C on the remote control, and their functions are the same, and the button D on the remote controller is used for mode selection. The up and down modes of S4 and S5 are different from the up and down modes of S1 (A) and S2 (B), and the button functions will be described later. The driving circuit is composed of transistors Q1, Q2 and relays JQ1, JQ2, which respectively constitute the forward and reverse rotation of the driving motor. Input terminal J4 is used to input 220V AC power. The output terminal J6 outputs the upper and lower control signals of the motor, L1+N controls the upward movement of the motor, and L2+N controls the downward operation of the motor. J3, J5 are used to lead the buttons S1--S5 with wires for wired remote control.
9H Flexible Glass Screen Protector
This kind of Flexible Glass Screen Protective Film is made of nano-glass material and is an indispensable device for people who often drop their mobile phones. The Flexible Protective Film can be perfectly fixed on the mobile phone to completely protect the mobile phone screen to prevent scratches and cracks on the edge of the mobile phone screen.
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