Introduction to Design Plan of Transmitter
Transmitter LED display Antenna 4F functional button ON/OFF button
Operating Principle • Master Control Chip conducts data analysis and identification on button demand through button scan. Analog signal will be converted to digital signal through A/D Converter, and corresponding code signal will be output following operation. • After the user’s button demand is processed to code signal , the code signal will be loaded to high-frequency local oscillator signal by frequency mixing so as to form radio-frequency signal satisfying requirement of transmission.
Logic Block Diagram Status display Functional button circuit Master Control Chip Signal Processing Unit A/D Converter and code output Voltage stabilization and filtering Transmission antenna Output of RF carrier signal Code signal 12V battery as power supply Modulation of highfrequency local oscillator 433.
Electric Parameters and Properties • Voltage of power supply：23A battery, 12VDC • Transmission amplitude ： Principal wave +17DB Secondary harmonic -18DB • Transmission frequency：433.
Application Method • • • • • • • Press Start button of receiver, and the system starts in ready mode ； Long press ON/OFF button for 3 seconds, the product will work in F1 mode and start vibration； Press 4F button of remote-controller, the product will work in F2 mode and accelerate vibration； Press 4F button of remote-controller again, the product will work in F3 mode and vibrate at the highest speed； Press 4F button of remote-controller again, the product will work in F4 mode and pulse vibration mode.
• • • • • • • • • • • • • • • • • • • • This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not causeharmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. hanges or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
